Solar&Planetary LtE Now for CMO/ISMO #98 (CMO #472)

Solar & Planetary LtE Now for CMO/ISMO #98 (CMO #472)

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¤·····Subject: Mars 2018/07/14-Kumamori

Received: 17 July 2018 at 14:04 JST

Mars images on 14 July 2018 in Okinawa.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180714/Km14July18.png

Teruaki KUMAMORI (Osaka, JAPAN)

¤·····Subject: Mars dust comparison video July 16

Received: 17 July 2018 at 12:49 JST

Time for another video showing how Mars looks now compared to a dust-free view:

http://www.acquerra.com.au/astro/gallery/mars/20180716-164412/mars-20180716-IR750.mp4

regards,

Anthony WESLEY (NSW, AUSTRALIA)

¤·····Subject: Mars, July 16 IR750

Received: 17 July 2018 at 11:59 JST

Hi all, some slightly better seeing this morning on Mars with the IR750 longpass filter showing more detail than before. Maybe some of the obscuration is clearing away?

Valles Marineris is prominent at centre with the South Pole at bottom showing some isolated brighter regions. The three Tharsis volcanoes are faintly visible rising at left.

Link:
http://www.acquerra.com.au/astro/gallery/mars/20180716-164412/m20180716-164412utc.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180716/AWs16July18.png

Anthony WESLEY (NSW, AUSTRALIA)

¤·····Subject: Saturn occults a star (July 12th.)

Received: 17 July 2018 at 04:00 JST

Hi all,

Here is an image on July 12th. Poor seeing but a reasonably bright star passed through the ring system and behind the planet (i had no idea this was happening at the time.)

http://www.damianpeach.com/sat18/s2018-07-12-0219_8-RGBdp.jpg

Best Wishes

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Mars images - July 16

Received: 17 July 2018 at 01:15 JST

Gentlemen,

I had good seeing last night. Transparency was fair for this set of images but quickly deteriorated thereafter.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180714/PGc14July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Re: Mars 14 July 2018 2106UT RGB and IR

Received: 16 July 2018 at 22:01 JST

We usually think of these global dust storms as being started by the cold winds rushing northward from the SPC, as the exposure of the southern latitudes to sunlight warms the ground in southern spring. The updrafts created by the warmth of the ground enhances the outrush of the SPC winds. Even though this one began in the Northern Hemisphere, it is possible that the winds from the SPC in the usual spring fashion were what magnified the storm so greatly.

I think that it is now a global dust storm, and I think that the usual classification of these events dictates that the only previous global storm on record was that of 1971. I agree with you, Jim, that the poles may be the last areas to be covered in a global storm, although the 1971 development was not well observed, so we don't have anything to compare to the development of the present one. However, I think that, in most planet-encircling storms, the poles were the main areas not covered.

The dust in the atmosphere warms it, as you are pointing out. This effect is greatest in the upper levels of the mixing layer (i.e., troposphere), because the high altitude dust attentuates the insolation to levels below it. As you know, the normal situation in the troposphere is a decrease in temperature with increased altitude. The dust storm reverses that gradient -- a situation called a temperature inversion. Winds are suppressed by the temperature inversion, as the air is very stable. This results in disappearance of dense dust cores, and the dusty haze gradually settles to the ground.

I think that Clyde's July 15th image shows separate dense dust cores over Thaumasia Felix, Aonius Sinus, Sirenum, Phaethontis, and Electris. These dust clouds include powerful updrafts that supply the upper levels of the mixing layer with more dust. Though it has been suggested that some areas are now clearing a bit, it's not clear to me (pun intended.) When the last of the dense cores have disappeared, then I'll expect gradual, global clearing.

That will be 2 cents, please.

Roger VENABLE ( Chester, GA )

¤·····Subject: Saturn images (July 10th.)

Received: 16 July 2018 at 06:23 JST

Hi all,

Here is an image from July 10th. The polar storm is clearly seen.

http://www.damianpeach.com/sat18/s2018-07-10-0431_4-RGBdp.jpg

Best Wishes

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Re: Mars 14 July 2018 2106UT RGB and IR

Received: 16 July 2018 at 05:28 JST

Hi Clyde,

As your images show, the dust cloud activity has expanded to almost cover the entire SPC. My lower resolution image displayed at Mars on July 14, 2018 SPC Dust covered shows the same. I think the poles are the last to succumb to a planet-wide dust storm. They are the coldest regions on Mars. Dust storm expansion requires the temperature of a dust cloud to increase. Apparently the temperature of dust clouds near the South polar region has increased sufficiently to overcome the cold temperature sink of the SPC. Notice also, the NPH is tan shaded now. If dust clouds cover both poles as well as the rest of the planet, then we have a global dust storm versus a planet-wide storm. In the completely dust covered Tharsus region, there is no area to expand to so the temperature of the region may go up without any expansion. I would like here what other people think about the process. Thanks.

Jim MELKA (Chesterfield, MO)

¤·····Subject: Mars images (July 10th.)

Received: 16 July 2018 at 04:01 JST

Hi all,

Here is an image from July 10th. Various vague markings can be seen. The Oxus dark patch is clearly visible in the north.

http://www.damianpeach.com/mars2018/m2018_07_10dp.jpg

Best Wishes

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180710/DPc10July18.png

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Jupiter images (July 10th.)

Received: 16 July 2018 at 01:30 JST

Hi all,

Here is a quick image from July 10th. GRS centre with bright material surrounding. The equatorial zone is looking very dusky and yellow/orange coloured.

http://www.damianpeach.com/jup18/2018-07-10-0242_5-RGBdp.jpg

Best Wishes

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Mercury 12-07-2018 742nm IR

Received: 16 July 2018 at 01:00 JST

Hi All,

Mercury again...the apparent size has increased a little (around 8 arcsec) and the phase noticeably narrower as he swings in towards us, starting to close in on the sun. Good but not great conditions for this shot.

All the best

Simon KIDD (Cottered,Herts,the UK)

¤·····Subject: Mars images - July 14

Received: 16 July 2018 at 00:21 JST

Gentlemen,

Seeing was about average and transparency was below average for this set of images.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180714/PGc14July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Second Mars image from 07/14/2018 16:09UT

Received: 15 July 2018 at 22:46 JST

Dear CMO,
Here is a second Mars image from 07/14/2018, this one from 16:09 UT.
best regards,
http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180714/RHf14July18.png

Robert HEFFNER (Osaka, JAPAN)

¤·····Subject: Mars 14 July 2018 2106UT RGB and IR

Received: 15 July 2018 at 22:05 JST

Hi, all

Mars image set from yesterday evening, with Olympus Mons prominent at lower centre and the three other main Tharsis volcanoes also very obvious.

I suspect ongoing dust activity in the high southern latitudes.

Maybe a promising sign- the light markings to the south west of OM may be re-appearing?

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180714/CFs14July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Saturn, July 14

Received: 15 July 2018 at 18:00 JST

Hi all, here's an image of Saturn from last night. Seeing was quite good for a while so I recorded and processed about 30 minutes of data to make this image. With the rings colour-balanced as white this should be close to a true colour epresentation.

Some faint white spots can be seen across the disk but otherwise it looks pretty quiet.

cheers, Anthony

Link:
http://www.acquerra.com.au/astro/gallery/saturn/20180714-120336/s20180714-120336utc.png

Anthony WESLEY (NSW, AUSTRALIA)

¤·····Subject: Mars image from 07/14/2018 16:17UT

Received: 15 July 2018 at 16:34 JST

Dear CMO,
Here is a Mars image from 07/14/2018 16:17:48 UT
Decent overall conditions this session and I will likely send 1-2 more derotated observations later on.
best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180714/RHf14July18.png

Robert HEFFNER (Osaka, JAPAN)

¤·····Subject: Mars: July 14, 2018

Received: 15 July 2018 at 13:42 JST

Hi,

I have attached my latest image of Mars July 14, 2018.

Thanks,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180714/FMl14July18.png

Frank J MELILLO (Holtsville, NY)

¤·····Subject: Mars 2018/07/13-Kumamori

Received: 15 July 2018 at 11:37 JST

Mars images on 13 July 2018 in Okinawa.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180713/Km13July18.png

Teruaki KUMAMORI (Osaka, JAPAN)

¤·····Subject: Mars images - July 13

Received: 15 July 2018 at 02:05 JST

Gentlemen,

Seeing was average, at best, for these images. Transparency was about average.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180713/PGc13July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars 2018 July 12 & 14

Received: 15 July 2018 at 00:25 JST

Two similar images with the Tyrrhenum region on the CM. That from the 14th was captured at only 13º alt., but seeing was better. Mars is now nearly full.

In previous images I wasn’t getting the axial orientation exactly vertical. I’ve found the method in WinJUPOS of correcting that now (Recording: Image Measurement: Adjustment: Outline Frame: Rotate outline frame as if image were captured to Equatorial system).

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180714/DAr14July18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180712/DAr12July18.png

David ARDITTI (Edgware, Middx., the UK)

¤·····Subject: Mars image from 07/13/2018 16:03UT

Received: 14 July 2018 at 14:40 JST

Dear CMO
Here is a Mars image from from 07/13/2018 16:03:43 UT

Poor transparency conditions but decent enough seeing (for the low altitude!) to see the SPC details etc. up close.
Though the dust storm is not fully over it's nice to be able to image & observe
some of the prominent features again as we approach opposition!

Btw I gave up using the IR pass filter as the 224MC picks up nearly the same amount of detail with my current setup.

best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180713/RHf13July18.png

Robert HEFFNER (Osaka, JAPAN)

¤·····Subject: mars, July 13

Received: 14 July 2018 at 08:14 JST

Hi all, here are images of Mars from this morning, RGB on the left and IR750 on the right.

Valles Marineris is the bright horizontal feature near centre, with Olympus Mons on the limb at upper left.

In the colour image Mars still appears almost featureless.

Link:
http://www.acquerra.com.au/astro/gallery/mars/20180713-162542/m20180713-162542utc.png

cheers, Anthony

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180713/AWs13July18.png

Anthony WESLEY (NSW, AUSTRALIA)

¤·····Subject: Mars images July 13th 2018

Received: 14 July 2018 at 07:12 JST

Hi all,
Some very good seeing at first at an elevation of 18° only.
I find that dark markings are more visible in IR than over the past days.
Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180713/CPl13July18.png

Christophe PELLIER (Nantes, FRANCE)

Planetary astronomy and imaging

¤·····Subject: Mars images - July 12

Received: 14 July 2018 at 01:07 JST

Gentlemen,

Seeing was poor so I am submitting only IR images. Sky transparency was fair.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180712/PGc12July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars July 13

Received: 13 July 2018 at 21:20 JST

Hi Everyone
Only and IR image today.
http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180713/TWl13July18.png

Tim WILSON (Jefferson City, MO)

¤·····Subject: Re: CMO #469 uploaded

Received: 13 July 2018 at 21:08 JST

Dear Murakami san,

Thank you for your Mars Bulletin CMO notifications, which I am very happy to receive every time.

Please let me know about Minami san health situation, I remember you all with pleasure since we met in Fukui years ago. Please extend by best regards to Prof. Minami and to all the other CMO members.

I am enclosing a recent image of Mars which I would like to share with you, please use it as you like and I will be happy if it can be useful for your great Mars work.

Best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180708/GQr08July18.png

Giovanni A. QUARRA Sacco (Rome, ITALY)
(Amministratore/Manager) http://www.unitronitalia.com

¤·····Subject: Mars 2018/07/12-Kumamori

Received: 13 July 2018 at 17:56 JST

Mars images on 12 July 2018 in Okinawa.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180712/Km12July18.png

Teruaki KUMAMORI (Osaka, JAPAN)

¤·····Subject: Mars 12 July 2018 2010UT RGB and IR

Received: 13 July 2018 at 17:21 JST

Hi all,

An image set from earlier last night. I only captured one set of data and conditions were rather poor.

Olympus Mons is very prominent, and the three Tharsis volcanoes are also visible.

The bright regions in IR and R at high southern latitudes make me suspect that there is still active dust storms in these regions.

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180712/CFs12July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Mars 13 July 2018 0322UT RGB and IR

Received: 13 July 2018 at 15:36 JST

Hi all,

Mars this morning, with the RGB image still very subdued, and M Cimmerium retaining its rather unusual new shape.

It will be interesting to see if, and how long, it takes to return to "normal".

There is a subtle band of cloud visible in the G and B, extending diagonally from the edge of the SPC(upper left) towards the Hellas region at mid-upper right.

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180713/CFs13July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Mars, July 12

Received: 13 July 2018 at 13:40 JST

Hi all, here's a composite image of Mars from this morning in reasonable seeing. Left image is true colour and right image is IR750 which shows a little more detail.

Olympus Mons can be seen rising at top left, the three Tharsis volcanoes are visible below and to it's right. Valles Marineris is the bright horizontal feature near centre, although it should look very different to this. The south polar cap at bottom has a thick covering of dust apart from one small region on it's left. Some cloud is visible near the north pole at top although the pole itself is over the limb and not visible.

Link:
http://www.acquerra.com.au/astro/gallery/mars/20180712-163324/m20180712-163324utc.png

regards, Anthony

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180712/AWs12July18.png

Anthony WESLEY (NSW, AUSTRALIA)

¤·····Subject: Mars July 12

Received: 13 July 2018 at 06:57 JST

Hi Everyone,
Well here is a look at todays images.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180712/TWl12July18.png

Tim WILSON (Jefferson City, MO)

¤·····Subject: Mars images July 12th 2018

Received: 13 July 2018 at 06:24 JST

Some correct seeing this morning. The dust still hasn't moved since the day before.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180712/CPl12July18.png

Christophe PELLIER (Nantes, FRANCE)

Planetary astronomy and imaging

¤·····Subject: Saturn, storm and satellites 2018.06.26

Received: 13 July 2018 at 06:22 JST

Dears,

With a bit of delay in processing, my best Saturn this year despite being at around 20° elevation. Rings are bright thanks to the opposition effect (it's one day before opposition), and the polar storm is not resolved but visible both in red/infrared wavelength, and in visible.

IR animation:

http://astrosurf.com/delcroix/images/planches/s2018-06-26_00-47-36_anim-r610_md.gif

RGB:

http://astrosurf.com/delcroix/images/planches/s2018-06-26_01-09-12_rgb_md.png

Steady skies!

Marc DELCROIX (Tournefeuille, FRANCE)

http://astrosurf.com/delcroix

¤·····Subject: Mars 2018/07/11

Received: 13 July 2018 at 00:40 JST

Hello, here is an obs made in poor to average conditions.Dust storm is covering the usual formations and SPC.

I have also captured the moons of Mars.

http://kardasis.weebly.com/mars-2018.html

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180711/MKd11July18.png

Manos KARDASIS (Glyfada-Athens, GREECE)

¤·····Subject: Mars 2018/07/11-Kumamori

Received: 12 July 2018 at 16:45 JST

Mars images on 11 July 2018 in Okinawa.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180711/Km11July18.png

Teruaki KUMAMORI (Osaka, JAPAN)

¤·····Subject: Mars July 11

Received: 12 July 2018 at 06:59 JST

Hi Everyone.
Here is today's dusty Mars images.
The bright spot is again visible in the South Polar Cap.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180711/TWl11July18.png

Tim WILSON (Jefferson City, MO)

¤·····Subject: Mars

Received: 12 July 2018 at 05:31 JST

Hi to All!, Here I submit my latest sessions from july7, 8th.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180707/EMr07July18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180708/EMr08July18.png

Efrain MORALES RIVERA (Aguadilla, Puerto Rico)

¤·····Subject: Jupiter images, 8th July 2018

Received: 12 July 2018 at 04:54 JST

Some new images of the GRS and the strange shadings in p.part of STrZ.

Regards

Christophe PELLIER (Nantes, FRANCE)

Planetary astronomy and imaging

¤·····Subject: Additional Mars image from 07/09/2018 16:45 UT

Received: 11 July 2018 at 22:53 JST

Dear CMO
Here is an additional Mars image from 07/09/2018 16:45 UT

This is two images derotated in WinJUPOS.
The derotation helped with the ringing artifact, but not sure it produced a better result.

best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180709/RHf09July18.png

Robert HEFFNER (Osaka, JAPAN)

¤·····Subject: Mercury 08-07-2018 742nm IR

Received: 11 July 2018 at 21:42 JST

Hi All,

Mercury the other day, near quadrature.

All the best

Simon KIDD (Cottered,Herts,the UK)

¤·····Subject: Saturn, July 10

Received: 11 July 2018 at 16:36 JST

Hi all, here's an image of Saturn from last night through an IR filter.

The polar vortex and hexagon are visible at top, and some faint storm details can be seen in the surrounding lighter band on the edge of the polar region.

regards, Anthony

Link:
http://www.acquerra.com.au/astro/gallery/saturn/20180710-122612/s20180710-122612utc.png

Anthony WESLEY (NSW, AUSTRALIA)

¤·····Subject: Mars 11 July 2018 0156UT RGB and IR

Received: 11 July 2018 at 15:40 JST

Hi all,

Back in action after a few nights of cloud. Some detail visible in the IR685, but the RGB is still heavily affected by dust. The SPC is almost missing in action from this perspective.

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180711/CFs11July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Mars images - July 10

Received: 11 July 2018 at 15:14 JST

Gentlemen,

These images were captured in average seeing and good transparency.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180710/PGc10July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars July 10

Received: 11 July 2018 at 07:17 JST

Everyone,
Seeing was good this morning not much to see on the dusty planet. A clear hole over the south polar cap lets the cap shine though the dust.
Since there was no real features in color I only imaged a BW Luminosity image.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180710/TWl10July18.png

Tim WILSON (Jefferson City, MO)

¤·····Subject: Mars images July 10th 2018

Received: 11 July 2018 at 05:59 JST

Guys,
New images from this morning. The scene at the Tyrrhenum/Syrtis Major longitudes has not changed much over the last days. I'm wondering if we are seeing dust deposits rather than dust clouds there.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180710/CPl10July18.png

Christophe PELLIER (Nantes, FRANCE)

Planetary astronomy and imaging

¤·····Subject: Off the beaten track!

Received: 10 July 2018 at 23:58 JST

Hi all,

We had some very good seeing at the observatory last night so i decided to take a quick (20min) test shot of a very rarely photographed by fascinating object i am hoping to visually observe when i visit Chile in a few weeks.

http://www.damianpeach.com/deepsky/einsteincross_2018_07_10.jpg

Distant quasar Q2237+030 sits directly behind foreground galaxy PGC 69457 creating four images of the background quasar due to strong gravitational lensing. The quasar itself is 8 billion l.y away while the foreground galaxy a mere stones throw at 400 million l.y.

The galaxy nucleus was not detected (greater image scale is needed.) The whole cross spans little more then 2" in angular size.

Best Wishes

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Mars image from 07/09/2018 UT

Received: 10 July 2018 at 17:10 JST

Dear CMO
Here is a Mars image from 07/09/2018 16:31:32UT

Comments:
Conditions weren't great but at least the sky was clear finally!
Will try some derotation of this data set at a later time, sending the observational image in the meantime.
I believe the jagged area of the SPC is a high alt. cloud

best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180709/RHf09July18.png

Robert HEFFNER (Osaka, JAPAN)

¤·····Subject: Mars M180709 ishibaashi

Received: 10 July 2018 at 17:07 JST

Mars images on 9 July 2018 .

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180709/Is09July18.png

Tsutomu ISHIBASHI (Kanagawa, JAPAN)

¤·····Subject: Mars 2018/07/06～08-Kumamori

Received: 10 July 2018 at 14:22 JST

Mars images on 6, 7, 8 July 2018 in Okinawa.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180708/Km08July18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180707/Km07July18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180706/Km06July18.png

Teruaki KUMAMORI (Osaka, JAPAN)

¤·····Subject: Mars: July 8, 2018

Received: 10 July 2018 at 13:52 JST

Hi ,

I have attached my latest image of Mars July 8, 2018 at 6:14 UT.

Thanks,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180708/FMl08July18.png

Frank J MELILLO (Holtsville, NY)

¤·····Subject: Mars images - July 9

Received: 10 July 2018 at 11:27 JST

Gentlmen,

Seeing and transparency were very good last night.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180709/PGc09July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars Sketch 09 July 2018 CM: 335

Received: 10 July 2018 at 10:58 JST

Sir:

Please find attached my sketch of Mars for 9 July 2018. I had to employ filters to detect any details.

Info:

9 July 2018 0715 UT

35cm SCT f/11 @ 326x

Filters: W25, 80A, 56, & IL

S: 6-7/10 P T: 6/6 Alt: 28

CM: 335 Ls: 208 De: -13.3 Dia: 22.3"

Best,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180709/MRs09July18.png

Michael ROSOLINA (Friars Hill, WV)

¤·····Subject: Saturn, July 9

Received: 10 July 2018 at 11:00 JST

Hi all, here's an image of Saturn from last night using a 685nm longpass IR filter. Several individual runs were merged over about 30 minutes to get this result as the seeing was quite variable.

The polar vortex is visible at top along with the surrounding hexagon and some very faint structure.

regards, Anthony

Link:
http://www.acquerra.com.au/astro/gallery/saturn/20180709-132430/s20180709-132430utc.png

Anthony WESLEY (NSW, AUSTRALIA)

¤·····Subject: Mars July 9

Received: 10 July 2018 at 07:03 JST

Hello Everyone,
Well the dust storm continues on this side of Mars. The seeing is very good this morning.. only thing..

there just wasn't anything to see. The South Polar Cap looked darker on the preceding side. Also started using an 1.5X Uranoport barlow.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180709/TWl09July18.png

Tim WILSON (Jefferson City, MO)

¤·····Subject: Mars images June 9th 2018

Received: 10 July 2018 at 05:20 JST

Some Jupiter taken under good early seeing

Christophe PELLIER (Nantes, FRANCE)

Planetary astronomy and imaging

¤·····Subject: Mars images June 9th 2018

Received: 10 July 2018 at 05:20 JST

Hi all,
Images taken under poor seeing. The aspect at these longitudes is very
similar to that of the past days.
Regards

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180709/CPl09July18.png

Christophe PELLIER (Nantes, FRANCE)

Planetary astronomy and imaging

¤·····Subject: Mars images (July 9th.)

Received: 10 July 2018 at 04:29 JST

Hi all,

Here is an image from this morning. Very poor seeing not that this really matters so much since there is little to see! This hemisphere is completely unrecognisable.

http://www.damianpeach.com/mars2018/m2018_07_09dp.jpg

Best Wishes

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180709/DPc09July18.png

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Mars

Received: 10 July 2018 at 03:11 JST

Hi to All!, Here are my sessions taken recently and a small animation file.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180705/EMr05July18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180704/EMr04July18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180703/EMr03July18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180702/EMr02July18.png

Efrain MORALES RIVERA (Aguadilla, Puerto Rico)

¤·····Subject: Mars images - July 8

Received: 10 July 2018 at 01:58 JST

Gentlemen,

Seeing was poor for these images.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180708/PGc08July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars 1 July

Received: 9 July 2018 at 18:06 JST

Please find attached photograph of Mars taken on 1 July.

Best Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/BAd01July18.png

Barry ADCOCK (Melbourne, AUSTRALIA)

¤·····Subject: Mars images on 8 July

Received: 9 July 2018 at 06:33 JST

Mars images on 8 July 2018.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180708/Ak08July18.png

Tomio AKUSTU (Ibaraki, JAPAN)

¤·····Subject: Mars July 8 from Wilderness, Virginia, USA

Received: 9 July 2018 at 04:51 JST

Dear CMO,
Please accept following images for website. They were taken in poor seeing and such do not look as good as my earlier work. The Mars 4 image (7:48UT) reminds me somewhat of sketches by Percival Lowell showing his canali.

Respectfully submitted,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180708/MWs08July18.png

Myron WASIUTA (Spotsylvania, VA)
Mark Slade Remote Observatory

¤·····Subject: Mars images - July 7

Received: 8 July 2018 at 22:09 JST

Gentlemen,

Seeing was poor. Detail is soft in these images.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180707/PGc07July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars on 06 July 2018 from Hidetoshi Kudo

Received: 8 July 2018 at 20:16 JST

Dear Minami-sama,
Please find attached my latest Mars image.
Still in cloud. But it is nice to have a closer look.
I am hoping to get more images towards the closest approach.

Kind regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180706/Kd06July18.png

Hidetoshi KUDOH (Cairns, QLD, AUSTRALIA)

¤·····Subject: Jupiter, Io, Ganymede in transit and Europa 2018.06.25

Received: 8 July 2018 at 15:48 JST

Dears,

Under acceptable conditions, a nice configuration of Jupiter with 3 of its Galilean satellites.
A4 and A5 ovals are visible in the SSTB, and a brown spot preceded by two white spots are visible on north edge of NEB.

In infrared:

http://astrosurf.com/delcroix/images/planches/j2018-06-25_21-20-06_ir685_md.png

http://astrosurf.com/delcroix/images/planches/j2018-06-25_22-07-36_ir685_md.png

RGB

:http://astrosurf.com/delcroix/images/planches/j2018-06-25_21-41-36_rgb_md.png

In methane absorption band:

http://astrosurf.com/delcroix/images/planches/j2018-06-25_21-55-54_ch4_md.png

Steady skies,

Marc DELCROIX (Tournefeuille, FRANCE)

http://astrosurf.com/delcroix

¤·····Subject: Mars 2018/07/06-Kumamori

Received: 8 July 2018 at 10:22 JST

Mars images on 6 July 2018 in Okinawa.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180706/Km06July18.png

Teruaki KUMAMORI (Osaka, JAPAN)

¤·····Subject: Mars images 7th July 2018

Received: 7 July 2018 at 21:50 JST

Hi all,
Here are some images of Syrtis Major/Hellas this morning. This region has ceased to be a source of dust outbreaks.

We are almost reaching the season where the dust convective process stopped in 2001 (around Ls 210) but currently the other longitudes are still very active.

Regards

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180707/CPl07July18.png

Christophe PELLIER (Nantes, FRANCE)

Planetary astronomy and imaging

¤·····Subject: Mars images on 30 June & 2 July

Received: 7 July 2018 at 08:26 JST

Mars images on 30 June & 2 July 2018.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180702/Ak02July18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180630/Ak30June18.png

Tomio AKUSTU (Ibaraki, JAPAN)

¤·····Subject: Mars images - July 6

Received: 7 July 2018 at 04:16 JST

Gentlemen,

Seeing still remained above average last night. I also included an animation of the IR images.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180706/PGc06July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars 2018 July 04

Received: 7 July 2018 at 01:23 JST

Hellas and Syrtis Major are prominent in this view, and the dark areas N of the S Polar cap around L=300 are striking.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180704/DAr04July18.png

David ARDITTI (Edgware, Middx., the UK)

¤·····Subject: Mars - July 5

Received: 7 July 2018 at 00:25 JST

Gentlemen,

Seeing was very good for this set of images. I am very happy with these results considering Mars is only at a 26 degree elevation.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180705/PGc05July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars 6 July 2018 0316UT RGB and IR

Received: 6 July 2018 at 19:20 JST

Hi all,

Mars this morning, centred on Arabia and S Sabeaus.

Best regards, clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180706/CFs06July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Japanese mars observers

Received: 6 July 2018 at 06:18 JST

Dear Masatsugu,

I am working on revising a manuscript on Mars (with Stephen James O’Meara) and wanted to mention that one of Pickering’s legacies was the inspiration and encouragement of some Japanese Mars observers. Based on your talk at Meudon in 2009, I have written the following short paragraph:

"In the end, though Pickering continued to believe in the existence of linear markings (which he usually depicted as much broader than Lowell’s fine lines and gossamer filaments), he never really subscribed to the idea of artificial canals on Mars. In later years, after his retirement from Harvard and removal of his base of operations to a former coffee plantation near Mandeville, Jamaica, he set up an observatory in conditions that he claimed were better than those of Arequipa or Flagstaff, and continued to make at least occasional observations of Mars. Sadly, his later years were lonely, bitter, and astronomically increasingly behind the times, but he still published prolifically on Mars in the pages of Popular Astronomy, a journal mainly appealing to amateurs, and had a decisive influence on a future generation of students of the planet, especially in Japan. (Of special note is Kaname Nakamura (1904-1932), who regularly corresponded with Pickering. Nakamura’s best work was done with an 18-cm Zeiss-Sartorius refractor at the Kwasan Observatory of Koyoto University at the oppositions of 1924 and 1926. In addition to being a careful observer, he was skilful maker of telescope mirrors, who encouraged other Mars observers such as Shigemaro Kibe (1912-1990) and Tsuneo Saheki (1916-1996). Saheki, who is discussed further below and is the only Japanese Mars observer of that era to become well-known in the West, corresponded with Nakamura and asked him to make a small mirror for him; unfortunately, nothing came of his request, because of Nakamura’s death by suicide at the age of only 28.)”

Does this seem like a reasonable summary?

I am also hoping to include some drawings by these observers, as very few people in the Anglo-Saxon world are likely to have encountered any of this work.

I will try to seek these out from the web page of the Meudon conference.

Exciting to be following the dust storm from Flagstaff, and I will submit a report of my observations here in due course (when I have time!).

Tomorrow night I am speaking at the observatory on the canal illusion.

All good wishes,

Bill SHEEHAN (Flagstaff, AZ)

¤·····Subject: Mars 5 July 2018 2031UT RGB and IR

Received: 6 July 2018 at 17:36 JST

Hi all,

The early session from last night. I pushed the IR a bit to bring out some of the finer texture (most of which is “real”, based on comparing images over a short time period).

Comparing with Anthony Wesley’s IR image of earlier in the day, it appears that a lot of the most active dust regions are in the high southern latitudes.

I also note the light ring around Elysium.

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180705/CFs05nJuly18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Mars, July 5

Received: 6 July 2018 at 12:07 JST

Hi all, here's a colour image of Mars from this morning. Olympus Mons is visible at top right, and further right, we see the three Tharsis volcanoes all poking through the thick dust. Dust covers most of the surface making it almost invisible. The south polar cap at bottom shows a lot of dust-related features, with raised dust clearly visible to the lower right of the image giving the terminator the characteristic wrinkled appearance. There is also some hint of raised dust in the atmosphere on
the right hand edge of the south polar cap.

Link:
http://www.acquerra.com.au/astro/gallery/mars/20180705-164512/m20180705-164512utc.png
regards, Anthony

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180705/AWs05July18.png

Anthony WESLEY (NSW, AUSTRALIA)

¤·····Subject: Mars2018_04 July_rgb images

Received: 6 July 2018 at 11:03 JST

Extensive dust obscuration.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180704/GWk04July18.png

Gary WALKER (Macon, GA)

¤·····Subject: Mars July 5

Received: 6 July 2018 at 07:12 JST

To Everyone,
Well the dust appears to be thinning around Mare Acidalium but Mariner Valley is visible as a bright dust filled linear feature
around the meridian. The blue image shows an interesting hole in the otherwise bright south polar cloud.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180705/TWl05July18.png

Tim WILSON (Jefferson City, MO)

¤·····Subject: Jupiter & Io 2018.06.22

Received: 6 July 2018 at 06:34 JST

Dears,

Jupiter in disappointing conditions: conditions were excellent at eyepiece during sunset, but when I started imaging a high frequency turbulence degraded the acquisition.
GRS ans it's wake are visible.

In infrared:

http://astrosurf.com/delcroix/images/planches/j2018-06-26_21-19-42_ir685_md.png

http://astrosurf.com/delcroix/images/planches/j2018-06-26_21-59-12_ir685_md.png

In red (the other colors were useless):
http://astrosurf.com/delcroix/images/planches/j2018-06-26_21-31-12_r_md.png

In methane absorption band:
http://astrosurf.com/delcroix/images/planches/j2018-06-26_21-48-00_ch4_md.png

Steady skies,

Marc DELCROIX (Tournefeuille, FRANCE)

http://astrosurf.com/delcroix

¤·····Subject: Mars images (May 5th.)

Received: 6 July 2018 at 06:21 JST

Hi all,

Here are some pre-storm images from May 5th. Average seeing, but a nice view of Syrtis Major and Elysium.

http://www.damianpeach.com/barbados18/m2018_05_05dp.jpg

Best Wishes

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180505/DPc05May18.png

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Mars 03 July 2018

Received: 6 July 2018 at 05:17 JST

Dear Masatsugu and Masami,

Attached is an image set of Mars I took on the morning of July 3rd. Skies cleared here on that morning but we are back to a rainy forecast for the next few days.

Best wishes,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180703/WFl03July18.png

Bill FLANAGAN (Houston, TX)

¤·····Subject: SPC atmospheric projections/high altitude clouds on 6/30 & 7/1 UT

Received: 5 July 2018 at 20:44 JST

Dear CMO,
Here is an additional/special observational image of the SPC atmospheric projections/high altitude clouds recorded in my 6/30 & 7/1 UT images.
The projections are recorded clear as day including in the unprocessed version insets.

best regards,

Robert HEFFNER (Osaka, JAPAN)

¤·····Subject: Book dedication

Received: 4 July 2018 at 06:38 JST

Dear Masatsugu
I hope you are well. I have been observing The great dust storm with the Clark refractor here at Lowell, but mostly on the CMO web page, which I have recommended to many colleagues.

I am working on a series of books on planets for a British publisher (Reaktion Press), and wonder if you would oblige my wish to dedicate the one on Mars to you and Richard McKim. Unless I hear otherwise I shall assume your acquiescence.

With my very fond regards

Bill SHEEHAN (Flagstaff, AZ)

¤·····Subject: Mars 5 July 2018 0301UT RGB and IR

Received: 5 July 2018 at 17:01 JST

Hi all,

Mars image set from this morning.

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180705/CFs05July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Mars Sketch 3 July 2018

Received: 5 July 2018 at 04:19 JST

Sirs:

Please find attached my latest sketch of Mars. Still pretty dusty. :-)

35cm SCT f/11 @ 326x & 355x ZWO ADC

Filters: W25, 80A, and IL

S: 8/10 P T: 3/6 with clouds Alt: 29

CM: 35.5 Ls: 204.3 De: -13.9 Dia: 21.3"

Best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180703/MRs03July18.png

Michael ROSOLINA (Friars Hill, WV)

¤·····Subject: Mars images (June 29th.)

Received: 5 July 2018 at 04:11 JST

Hi all,

Very poor conditions so took a quick image set for the record. This shows the Chryse hemisphere of the planet - not that you would know it given everything is covered. Dust across the SPC also.

http://www.damianpeach.com/mars2018/m2018_06_29dp.jpg

Best Wishes

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180629/DPc29June18.png

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Mars images on 1 July

Received: 5 July 2018 at 00:42 JST

Mars images on 1 July 2018.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/Ak01July18.png

Tomio AKUSTU (Ibaraki, JAPAN)

¤·····Subject: Mars 4 July 2018 0334UT RGB and IR

Received: 4 July 2018 at 21:20 JST

Hi, all

The pre-dawn session centred on Arabia and S Sabeaus(what there is visible of it!)

SPC is showing a bit of complex structure.

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180704/CFs04July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Mars 3 July 2018 2041UT RGB and IR

Received: 4 July 2018 at 19:09 JST

Hi all,

Pre-midnight session, with only a portion of M Cimmerium visible. Interesting that the Gale Crater Gomer extension is visible, indicating that Curiosity Rover may be getting a bit of sunlight.

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180703/CFs03July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: More Mars images 1st July 2018

Received: 4 July 2018 at 18:30 JST

Please find attached more Mars images from me taken on the 1st July in good seeing.

Unfortunately the time separation between sets is not great, but at least the data was of reasonable quality and allows some comparison between sets.

Best wishes

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/MVl01July18.png

Maurice VALIMBERTI (Melbourne, AUSTRALIA)

¤·····Subject: Jupiter 2018 July 02 & 03

Received: 4 July 2018 at 07:57 JST

Better seeing on the 2nd, but the image from the 3rd seems interesting for the curious shape of the IR-bright GRS region.

David ARDITTI (Edgware, Middx., the UK)

¤·····Subject: Jupiter images, 26th and 28th June 2018

Received: 4 July 2018 at 06:19 JST

Hi all,
Some Images of the GRS on June 26th mainly. Many of us are wondering if the pinching of the STrZ at p.part is the reborned STrD, these images still don't bring an answer, although the UV image unexpectedly reveals a dark bridge.
Of note again in UV is the very strong contrast of the Equatorial "band", now equal to that of the NEB!
Christophe

Christophe PELLIER (Nantes, FRANCE)

Planetary astronomy and imaging

¤·····Subject: Mercury 02-07-2018 742nm IR

Received: 4 July 2018 at 04:41 JST

Hi All,

Another shot of Mercury, from yesterday.

Mercury is changing apparent size and phase rapidly at the moment.

Good conditions as the day started to cool.

All the best

Simon KIDD (Cottered,Herts,the UK)

¤·····Subject: Mars July 3 2018

Received: 3 July 2018 at 19:56 JST

Hi,

louds moving in this morning so an Ir image, blue, No color image today but did take a quick Black and White Luminosity image. The IR image appears to show some more detail today as if the dust was thinning in the area over the last day.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180703/TWl03July18.png

Tim WILSON (Jefferson City, MO)

¤·····Subject: Resend - Mars image from 07/01/2018 UT

Received: 3 July 2018 at 13:45 JST

Hi CMO,
The image I sent contains the same framing as June 30th to save time, but it is as separate new image.
(you can blink the images to confirm that).

Resending the July 1st Mars image just in case.
best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/RHf01July18.png

Robert HEFFNER (Osaka, JAPAN)

¤·····Subject: Mars images - July 2

Received: 3 July 2018 at 09:31 JST

Gentlemen,

Seeing was reasonably good, but there were low frequency heat waves emanating from ground level that spoiled the view a bit. I also included an animation of the IR images.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180702/PGc02July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars July 2 2018

Received: 3 July 2018 at 07:14 JST

Hi,
Planet was almost featureless this morning.
Visually and with imaging. The South Polar Cap was even hard to see. So dark areas showed up in the IR image.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180702/TWl02July18.png

Tim WILSON (Jefferson City, MO)

¤·····Subject: Mars 23, 27 & 28 June 2018

Received: 2 July 2018 at 23:33 JST

Dear Masatsugu and Masami,

Attached are some images of Mars taken on the mornings of 23 June, 27 June and 28 June. I am finally able to image Mars from my backyard during this opposition just after it passes the meridian and shows through a hole in the trees just before morning twilight.

Lots of dust on Mars showing in these images, but now I’m having to deal with a dust storm here on our planet! Dust from the Saraha Desert has made its way across the Atlantic and into the skies here in Houston, Texas. As a result the skies here are hazy and transparency is poor especially with Mars at only 35 degrees above the horizon when I’m able to get to it.

Hopefully the skies will clear here soon and I’m looking forward to contributing more images as this year's apparition continues.

Best wishes,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180628/WFl28June18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180627/WFl27June18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180623/WFl23June18.png

Bill FLANAGAN (Houston, TX)

¤·····Subject: Mars vanishes beneath the dust!

Received: 2 July 2018 at 22:05 JST

Hi all,

Created a small animation showing the dust obscuration across the Tharsis region using my June 28th data and the reference image of this hemisphere from MGS.

http://www.damianpeach.com/mars2018/mars_june28th_solislacus.gif

The volcanic peaks remain clear, and also a dark spot in Valles Marineris, but little else ties up with known albedo markings, especially the dark/light streaks (which also appear in other images.)

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Re: Mars 2 July 2018 0330 RGB and IR

Received: 2 July 2018 at 21:17 JST

The colors of Mars have always varied considerably among Mars imagers. There are probably a number of factors that influence this. I don't know of any "correct" color rendition, and until we know more about it, it is appropriate for each imager to render it according to his or her preference. In using your own judgment about the colors, don't be too critical of yourself!

However, I find that now Mars is less red than usual, more yellow than usual, as seen with the unaided eye. I also noted this in the planet encircling dust storms of 2001 and 2007, and it has been noted by other persons. Furthermore, Richard Schmude established the less red appearance by color photometry during the storm of 2007.

Roger VENABLE ( Chester, GA )

¤·····Subject: Re: [marsobservers] Mars images (June 28th.)

Received: 2 July 2018 at 20:32 JST

Damian --

It looks as though you have imaged the caldera on Arsia Mons, with
dust in the caldera. Do you think that's what it shows?

Roger VENABLE ( Chester, GA )

¤·····Subject: Mars 01 July

Received: 2 July 2018 at 19:20 JST

Hi everyone,

The seeing was a bit better than usual last night and the image seems to show high altitude dust, projected over the southern terminator.

Best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/SBd01July18.png

Stefan BUDA (Melbourne, AUSTRALIA)

¤·····Subject: Mars image from 07/01/2018 UT

Received: 2 July 2018 at 18:37 JST

Dear CMO
Here is a Mars image from 07/01/2018 17:45

Comments:
Similar conditions as June 30th imaging session.
I'm sticking with this current image processing routine to emphasize mainly color and contrast until the dust storm subsides.

best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/RHf01July18.png

Robert HEFFNER (Osaka, JAPAN)

¤·····Subject: Mars June 24, 25, 27, 30 and July 1

Received: 2 July 2018 at 17:37 JST

Dear all,

Sharing five observations of Mars from the past week made with a 25 cm Newtonian, ADC and color camera. Acquisition/processing with Firecapture, Autotstakkert, WinJUPOS, Registax and Photoshop.

Mars transits at less than 12 degree altitude from here so the conditions are difficult with constant heavy turbulence, the seeing has generally not been better than 2/10.

http://www.saaf.se/gallery2/d/75462-2/m2018-06-24-01-23-36-jw_rgb_001.png

http://www.saaf.se/gallery2/d/75482-2/m2018-06-25_01-04-12_jw_rgb_001.png

http://www.saaf.se/gallery2/d/75470-2/m2018-06-27_00-47-42_rgb_jw.png

http://www.saaf.se/gallery2/d/75474-2/m2018-06-30_01-22-06_rgb_jw.png

http://www.saaf.se/gallery2/d/75478-2/m2018-07-01_01-21-18_rgb_jw.png

The Sinus Meridiani hemisphere is heavily obscured by the dust storm. Some classical albedo features can be partially glimpsed, but features such as the familiar "club" of Sinus Sabaeus central on the disk and Syrtis Major on the evening terminator are totally obscured. Hellas and Deucalionis Regio seem particularly bright with yellowish dust.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/JWr01July18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180630/JWr30June18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180627/JWr27June18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180625/JWr25June18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180624/JWr24June18.png

Johan WARELL (Skurup, SWEDEN)

¤·····Subject: Mars 2 July 2018 0330 RGB and IR

Received: 2 July 2018 at 17:27 JST

Hi, all

The pre-dawn image set from this morning. The RGB is low res, but I think sufficient to show that this region is still heavily obscured. The IR continues to show most detail.

Maybe a point of interest: I think the “Dark Oxus segment” as discussed in CMO/ISMO may be visible in the IR image.

Best regards, Clyde

(PS: I am seeing a wide variation in colour interpretation of Mars on the various forums. Most show a stronger reddish tinge than mine. If there is any comment/suggestions/criticism in this regards, please let me know)

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180702/CFs02July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Mars 1st July 2018 UT

Received: 2 July 2018 at 15:35 JST

Hello

Attached is an image of Mars from the 1st July taken in good seeing conditions.

Kind regards

Maurice

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/MVl01July18.png

PS I have also attached an image of Saturn from the same session showing more of the NPR activity.

Maurice VALIMBERTI (Melbourne, AUSTRALIA)

¤·····Subject: Mars 1 July 2018 2133 RGB and IR

Received: 2 July 2018 at 15:31 JST

Hi all,

Pre-midnight session from last night, still with rather average conditions. Trying to get two Mars sessions in per night, with the second session re-dawn. And then, off course, there is Jupiter and Saturn(and Neptune is out there as well!)…. Always knew this would be a busy period.

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/CFs01July18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Mars images

Received: 2 July 2018 at 10:13 JST

Dear Sirs,
Some very good seeing in Melbourne this morning.
Please find attached a Mars image set from the 1st July 2018.
Best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/MJs01July18.png

Mark JUSTICE (Melbourne, AUSTRALIA)

¤·····Subject: Jupiter images 22 & 25 June 2018

Received: 2 July 2018 at 06:27 JST

Hi all,
A joint sending of two observing nights.

Best regards,

Christophe PELLIER (Nantes, FRANCE)

Planetary astronomy and imaging

¤·····Subject: Saturn images (June 28th.)

Received: 2 July 2018 at 05:54 JST

Hi all,

Here is an image from the 28th. Overslept so completely missed the planet at the meridian. This was a quick run taken when the planet had dropped to 30deg. Note the storms/spots visible around the polar region.

http://www.damianpeach.com/sat18/s2018-06-28-0822_7-RGBdp.jpg

Best Wishes

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Venus Animation 26-06-2018

Received: 2 July 2018 at 05:08 JST

Hi All,

An animation of Venus, through a 742nm filter.

https://www.dropbox.com/s/6ggfdp1e87eq8uo/2018-06-26%20Venus%20anim.GIF?dl=0

Conditions really quite good....stable images on preview, surprising with all the local heat around at the moment.

All the best

Simon KIDD (Cottered,Herts,the UK)

¤·····Subject: Mercury 26-06-2018 742nm IR +Animation

Received: 2 July 2018 at 04:21 JST

Hi All,

Another image of Mercury.

Slightly better conditions this time.

Also attached, an animation with the image from 25/06, I think this helps distinguish

real features from artefacts, especially in the bland, low-contrast areas.

Difficult to find a good map to help identify these features.

All the best

Simon KIDD (Cottered,Herts,the UK)

¤·····Subject: Mars images (June 28th.)

Received: 2 July 2018 at 03:55 JST

Hi all,

Some good seeing for this view. Once again the volcanoes across Tharsis are the only identifiable features.

http://www.damianpeach.com/mars2018/m2018_06_28dp.jpg

Best Wishes

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180628/DPc28June18.png

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Mars images - July 1

Received: 2 July 2018 at 02:03 JST

Gentlemen,

Attached are some images from last night. Seeing was very good.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180701/PGc01July18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Mars from Virginia, USA on June 29, 2018

Received: 2 July 2018 at 00:25 JST

Dear CMO,

Please consider image for publication on website.

Sincerely,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180629/MWs29June18.png

Myron WASIUTA (Spotsylvania, VA)

¤·····Subject: Mars images on 28 & 29 June 2018

Received: 1 July 2018 at 23:37 JST

Mars images on 28 & 29 June 2018.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180628/Ak28June18.png

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180629/Ak29June18.png

Tomio AKUSTU (Ibaraki, JAPAN)

¤·····Subject: Mars　M180630 ishibashi

Received: 1 July 2018 at 23:34 JST

Mars images on 30 June 2018.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180630/Is30June18.png

Tsutomu ISHIBASHI (Kanagawa, JAPAN)

¤·····Subject: Mars images (June 27th.)

Received: 1 July 2018 at 20:51 JST

Hi all,

Some moments of decent seeing at times. Sadly there is not much to see really, aside from the peaks of the Tharsis volcanoes sticking through the thick dust layer!

http://www.damianpeach.com/mars2018/m2018_06_27dp.jpg

Best Wishes

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180627/DPc27June18.png

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Mars 30 June 2018 2054 RGB and IR

Received: 1 July 2018 at 19:02 JST

Hi all,

Image set from last night. Very little indication of Elysium which should be coming into view.

Syrtis Major at lower right, and it appears the SPC is severely affected in this region.

Quite difficult to judge just how far to push the processing.

Best regards, Clyde

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180630/CFs30June18.png

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤·····Subject: Mars image from 6/30/2018 UT

Received: 1 July 2018 at 16:15 JST

Dear CMO
Here is a Mars image from 6/30/2018 17:37

Comments:
Fairly poor conditions with passing clouds, passing large trucks nearby and mediocre local seeing but squeezed one "iffy" capture in.
Observation notes are in the image itself.
best regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180630/RHf30June18.png

Robert HEFFNER (Osaka, JAPAN)

¤·····Subject: Mars image resend

Received: 1 July 2018 at 13:27 JST

Hi everyone,

Sorry if anyone received this image twice. It seems that my first try of sending it vanished in cyberspace.

Regards,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180628/SBd28June18.png

Stefan BUDA (Melbourne, AUSTRALIA)

¤·····Subject: Mars 2018 June 28 & 29

Received: 1 July 2018 at 11:53 JST

Seeing was better on the 28th. I took a very similar longitude on the 29th (so that was a bit of a waste of time).

Clearly Sinus Meridiani is now visible.

It’s true however that IR images like this don’t represent the visual view accurately. I couldn’t see Sinus M visually. The dust scatters the long wavelength of the IR less, and then there’s some sharpening applied; how much, and so how visible to make the contrasts, is a matter of judgement. But I try to maintain a consistent process from night to night.

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180629/DAr29June18.png

David ARDITTI (Edgware, Middx., the UK)

¤·····Subject: Mars image - June 30

Received: 1 July 2018 at 01:46 JST

Gentlemen,

Here is a set of images from last night in less than average seeing.

Seeing went from horrible, to bad, to less than average, then back to bad.

Regard,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180630/PGc30June18.png

Peter GORCZYNSKI (Oxford, CT)

¤·····Subject: Saturn opposition (June 27th.)

Received: 1 July 2018 at 01:19 JST

Hi all,

Here is Saturn at opposition. Average seeing. Interesting how the colours on the disk become quite muted/reddish compared to more normal lighting conditions.

http://www.damianpeach.com/sat18/s2018-06-27-0605_8-RGBdp.jpg

Best Wishes

Damian PEACH (Selsey, WS, the UK)

Web: http://www.damianpeach.com/

¤·····Subject: Mars 30th June UT

Received: 1 July 2018 at 00:44 JST

Hello all,
attached is an image set of Mars taken on the 30th June UT in average seeing conditions.
Best wishes,

http://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2018/180630/MVl30June18.png

Maurice VALIMBERTI (Melbourne, AUSTRALIA)

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