Solar&Planetary LtE Now for CMO/ISMO in April 2020

Solar & Planetary LtE Now in April 2020

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LtE in March 2020

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¤••••• Subject: Mars image (April 7th.)

Received: 1 May 2020 at 04:23 JST

Hi all,

Here is a Mars image from the 7th. Average seeing. Some prominent clouds over Syrtis Major and Hellespontus.

http://www.damianpeach.com/mars2020/m2020_04_07dp.jpg

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200407/DPc07Apr20.png

Best wishes,

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤••••• Subject: Re: 30 April 0343UT RGB IR

Received: 1 May 2020 at 01:21 JST

Margaritifer Sinus is now looking more like its old form, is it not, according to these images?

I am thinking that the recent Valles Marineris storm may have influenced the albedo pattern here. What do others think?

Richard McKim

Sent from my iPad

Richard McKIM (Peterborough, The UK)

¤••••• Subject: Mars 30 April 0343UT RGB IR

Received: 30 April 2020 at 22:26 JST

Hi all,

A rather rushed dataset from this morning as I was racing against heavy dew, after 4 days of cloud, some good rains and dropping temperatures.

S Meridiani and S Sabeaus are at centre left. The "rearranged" (after the 2018 global dust storm) Margaritifer- Indus region is central. Argyre can just be made out near the edge of the SPC at upper right.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200430/CFs30Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤••••• Subject: Mars 2020/04/29-Kumamori

Received: 30 April 2020 at 17:44 JST

Mars images on 29 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200429/Km29Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤••••• Subject: C/2020 F8 on April 23rd.

Received: 30 April 2020 at 06:23 JST

Hi all,

Image from the 23rd (before it really got going.) Some streamers are visible though tail was much weaker.

http://www.damianpeach.com/deepsky/c2020_f8_2020_04_23dp.jpg

17"CDK. FLI CCD. LRGB. 15/2/2/2min.

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤••••• Subject: Mo Mars

Received: 29 April 2020 at 22:13 JST

Mars images in March & April.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200323/Mo23Mar20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200403/Mo03Apr20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200405/Mo05Apr20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200406/Mo06Apr20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200407/Mo07Apr20.png

Best regards,

Yukio MORITA (Hiroshima, JAPAN)

¤••••• Subject: Mars 2020/04/28-Kumamori

Received: 29 April 2020 at 18:47 JST

Mars images on 28 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200428/Km28Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤••••• Subject: Jupiter 2020-04-28

Received: 29 April 2020 at 10:26 JST

Jupiter Images on 28 April 2020.

Best regards,

Tomio AKUTSU (Ibaraki, JAPAN)

¤••••• Subject: Jupiter 2020-04-25

Received: 29 April 2020 at 09:21 JST

Jupiter Images on 25 April 2020.

Nasu Observatory (40cm Cassegrain Telescope ) at Tochigi, JAPAN.

Best regards,

Tomio AKUTSU (Ibaraki, JAPAN)

¤••••• Subject: Venus 2020-04-25

Received: 29 April 2020 at 09:19 JST

Venus Images on 25 April 2020.

Nasu Observatory (40cm Cassegrain Telescope ) at Tochigi, JAPAN.

Best regards,

Tomio AKUTSU (Ibaraki, JAPAN)

¤••••• Subject: Comet C/2020 F8 with very long tail!

Received: 29 April 2020 at 03:35 JST

Hi all,

Here is an image of C/2020 F8 from earlier today. FOV here is about 8deg corner to corner. The tail stretches out of the field and must be at least 8deg long and probably more.

http://www.damianpeach.com/deepsky/c2020_f8_2020_04_28dp.jpg

200mm F2 lens. FLI 16200 CCD camera. LRGB. 24/3/3/3min.

Best wishes,

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤••••• Subject: Mars 2020/04/27-Kumamori

Received: 28 April 2020 at 13:47 JST

Mars images on 27 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200427/Km27Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤••••• Subject: Mars image (April 3rd.)

Received: 27 April 2020 at 19:02 JST

Hi all,

Rather poor seeing on the 3rd. Sinus Meridiani is central.

http://www.damianpeach.com/mars2020/m2020_04_03dp.jpg

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200403/DPc03Apr20.png

Best wishes,

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤••••• Subject: Jupiter image (April 7th.)

Received: 26 April 2020 at 21:49 JST

Hi all,

Here is a Jupiter image from April 7th. Fair seeing. Oval BA is well seen.

http://www.damianpeach.com/jup2020/2020-04-07-0939_9-RGBdp.jpg

Best wishes,

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤••••• Subject: Mars image (March 12th.)

Received: 25 April 2020 at 23:20 JST

Hi all,

Here is an image from March 12th under a brief period of good seeing.

Elysium hemisphere on view with Syrtis Major at the limb.

http://www.damianpeach.com/mars2020/m2020_03_12dp.jpg

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200312/DPc12Mar20.png

Best wishes,

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤••••• Subject: Mars 25 April 0206UT RGB IR

Received: 25 April 2020 at 19:56 JST

Hi all,

The early start this morning gave me a reasonable look at the Niliacus L/M Acidalium region, which appeared(to me) somewhat obscured yesterday. My interpretation of my images of this morning is that there are a number of subtle light brownish features scattered across the extensive M Erythraeum region in the south (upper section of the image), but also visible in the north, that may have resulted in the view of yesterday.

Solis Lacus is near the upper right limb, with Valles Marineris at centre right.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200425/CFs25Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤••••• Subject: Mars 2020/04/24-Kumamori

Received: 25 April 2020 at 13:17 JST

Mars IR image on 24 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200424/Km24Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤••••• Subject: Mars, April 24

Received: 25 April 2020 at 09:23 JST

Hi all, here's a Mars image from this morning in reasonable seeing.

Syrtis Major can be seen as the prominent dark region setting at top right, with the circular feature of Hellas basin below it. The brownish colour of Hellas suggests that it contains a lot of dust. The south polar cap is prominent at the bottom.

cheers, Anthony

Link:
http://www.acquerra.com.au/astro/gallery/mars/index.live?dir=/mars&image=20200424-200918

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200424/AWs24Apr20.png

Anthony WESLEY (QLD, AUSTRALIA)

¤••••• Subject: Comet C/2020 F8 on April 21st

Received: 25 April 2020 at 03:23 JST

Hi all,

Here is Comet C/2020 F8 from April 21st. A big thank you to Martin Mobberley for providing the colour data for this result.

The tail was brighter and more active than a few days before.

http://www.damianpeach.com/deepsky/c2020_f8_2020_04_21dp.jpg

20" F4.5. LRGB. 20/1/1/1min.

Best wishes,

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤••••• Subject: Mars 24 April 0254UT RGB IR

Received: 24 April 2020 at 20:17 JST

Hi all,

Conditions were not great this morning, but I did manage a full set of Mars.

Valles Marineris is just to the right of centre with Aurorae Sinus just to its left. Solis Lacus is at upper right. Nilokeras is seen at lower centre. The SPC shadowed region continues to become more visible. However, what caught my eye during processing was that the Niliacus L/M Acidalium region (at lower left) appears to be obscured. Hoping to get a better view over the next few days to confirm if this is the case.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200424/CFs24Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars 2020/04/23-Kumamori

Received: 24 April 2020 at 14:21 JST

Mars IR image on 23 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200423/Km23Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤•••••Subject: Jupiter images on 23 April

Received: 24 April 2020 at 09:50 JST

Jupiter images on 23 April 2020.

Best regards,

Tomio AKUTSU (Ibaraki, JAPAN)

¤•••••Subject: Mars 22 April 0329UT RGB IR

Received: 22 April 2020 at 20:11 JST

Hi all,

Mars this morning. Valles Marineris is left of centre, with Solis Lacus upper centre. The "string of pearls" effect on the edge of the SPC continues. Sections of the shadowed SPC are coming into view.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200422/CFs22Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars 21 April 0322UT RGB IR

Received: 21 April 2020 at 20:13 JST

Hi all,

Despite what looked like poor conditions on-screen this morning, I was pleased to get a full set of images out for Mars, Jupiter and Saturn.

On Mars, Solis Lacus is at upper left, and it is nice to see the familiar structure of Valles Marineris coming into view. Tharsis covers most of the lower right section of the planet. There is a string of pearls(apologies to my Jupiter colleagues!) effect on the edge of the SPC. Not much cloud around- just a few isolated spots.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200421/CFs21Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars 2020/04/20-Kumamori

Received: 21 April 2020 at 13:50 JST

Mars images on 16 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200420/Km20Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤•••••Subject: Venus UV images

Received: 21 April 2020 at 09:32 JST

Venus UV images.

Best regards,

Tomio AKUTSU (Ibaraki, JAPAN)

¤•••••Subject: Venus images on 4~8 April

Received: 21 April 2020 at 09:22 JST

Venus images on 4 April.

Venus images on 5 and 6 April.

Venus images on 7 and 8 April.

Best regards,

Tomio AKUTSU (Ibaraki, JAPAN)

¤•••••Subject: Jupiter images on 20 April

Received: 21 April 2020 at 09:16 JST

Jupiter images on 20 April.

Best regards,

Tomio AKUTSU (Ibaraki, JAPAN)

¤•••••Subject: Jupiter images on 07 April

Received: 21 April 2020 at 09:15 ST

Jupiter images on 07 April.

Best regards,

Tomio AKUTSU (Ibaraki, JAPAN)

¤•••••Subject: Comet C/2020 F8 on April 18th.

Received: 21 April 2020 at 03:25 JST

Hi all,

Here is an image of SWAN on April 18th.

http://www.damianpeach.com/deepsky/c2020_f8_2020_04_18dp.jpg

20"CDK. 20/2/2/2min lrgb.

Best wishes,

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤•••••Subject: Mars 20 April 0301UT RGB IR

Received: 20 April 2020 at 21:05 JST

Hi all,

There is still some (slight) residual cloud over Arsia Mons as well as late afternoon equatorial cloud at left. Valles Marineris is center left and Solis Lacus at upper left.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200420/CFs20Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars, April 19

Received: 20 April 2020 at 09:13 JST

Hi all,

here's a colour image of Mars from this morning taken in not very good seeing. Three runs were merged to make this result, showing Sinus Meridiani at right of centre and the bright south polar cap at bottom.

regards, Anthony

Link:

http://www.acquerra.com.au/astro/gallery/mars/index.live?dir=/mars&image=20200419-195400

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200419/AWs19Apr20.png

Anthony WESLEY (QLD, AUSTRALIA)

¤•••••Subject: Mars 19 April 0334UT RGB IR

Received: 19 April 2020 at 20:07 JST

Hi all,

I managed to get this set this morning before the heavy dew did too much damage.

Some residual cloud hangs over Arsia Mons as well as the western section of Valles Marineris which is coming into view. There is also a small cloud in the far north (at bottom). Olympus Mons is at lower right.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200419/CFs19Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars, April 17

Received: 18 April 2020 at 09:14 JST

Hi all,

here's an image of Mars from this morning in reasonable seeing.

The south polar cap is prominent at bottom, with Sinus Meridiani visible at right.

At just on 7" in diameter Mars still has a long way to go...

regards, Anthony

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200417/AWs17Apr20.png

Anthony WESLEY (QLD, AUSTRALIA)

¤•••••Subject: Saturn, April 17 IR650

Received: 18 April 2020 at 08:18 JST

Hi all,

here's a Saturn image from this morning in reasonable seeing.

The 650nm longpass filter gave the best result, the only real features of note are the ripples on the northern edge of the bright equatorial zone.

The moon at lower left is Tethys, showing multiple times due to the images that were combined to make this image.

Link:

http://www.acquerra.com.au/astro/gallery/saturn/index.live?dir=/saturn&image=20200417-193112

regards, Anthony

Anthony WESLEY (QLD, AUSTRALIA)

¤•••••Subject: Comet C/2019 Y4 on April 17th.

Received: 18 April 2020 at 00:54 JST

Hi all,

Two images of the now much observed fragmenting comet.

First is full res data processed by stacking on the brightest fragment and applying some mild deconvolution/sharpening. 20 x 60secs with 43cm telescope.

http://www.damianpeach.com/deepsky/c2019_y4_2020_04_17fulldp.jpg

Second image is normal LRGB with same system:

http://www.damianpeach.com/deepsky/c2019_y4_2020_04_17dp.jpg

Best wishes,

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤•••••Subject: Mars 17 April 0325UT RGB IR

Received: 17 April 2020 at 20:29 JST

Hi all,

Mars image set from this morning under poor and rapidly deteriorating conditions. However, cloud can still be seen over Arsia Mons. There are a few bright spots on the edge of the SPC and also possible discolouration of the SPC near the terminator (similar to that observed a short while ago by Niall and Andy).

There is a rather usual effect on the SE limb(upper left) as it appears the planet has almost been cut off.....

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200417/CFs17Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars 2020/04/16-Kumamori

Received: 17 April 2020 at 14:15 JST

Mars images on 16 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200416/Km16Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤•••••Subject: Re: [marsobservers] Mars image (April 4th.)

Received: 17 April 2020 at 06:09 JST

Damian --

Another amazing image (April 4th).

It shows some interesting changes in albedo features as compared to recent apparitions.

Meridiani Sinus has lost its usual bifid shape that earned it the name "Dawes forked bay" 170 years ago, as it seems to have filled much of the space between the tines of the fork. Oxia Palus is large and prominent, without any clear distinction between it and the 'canal' Indus that connects it via an unusually prominent, broad neck to Niliacus Lacus. The southern half of the seldom seen 'canal' Hydaspas, extending northwest from Margaritifer Sinus, is broad and very prominent, though not connecting completely to Niliacus Lacus as it sometimes does.

It will be interesting to see if these features continue to change as the apparition proceeds.

Thanks for your persistence in imaging Mars.

-- Roger

Roger VENABLE (Chester, GA )

¤•••••Subject: Mars image (April 4th.)

Received: 17 April 2020 at 04:37 JST

Hi all,

Poor to fair seeing on the 4th. Meridiani and surroundings are well seen. No obvious dust activity despite the regional storm over this area fairly recently.

http://www.damianpeach.com/mars2020/m2020_04_04dp.jpg

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200404/DPc04Apr20.png

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤•••••Subject: Mars - April 14th

Received: 17 April 2020 at 02:19 JST

Hi to All!,

My latest session of Mars on april 14th, 09:59ut.

Efrain

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200414/EMr14Apr20.png

Efrain MORALES RIVERA (Aguadilla, Puerto Rico)

¤•••••Subject: Mars 16 April 0301UT RGB IR

Received: 16 April 2020 at 20:16 JST

Hi all,

Back “at work” in the observatory this morning after a few days of cloud and rain. Not complaining as we move towards the dry seasons here. It is also cooling down with the first snowfalls on the Drakensberg mountains, 400km to my south.

I derotated three sets of data captured over a total period of an hour for this set.

There is impressive orographic cloud over Arsia Mons, but the G and B images show quite a bit of scattered cloud over the equatorial and northern regions. Olympus Mons is just left of lower centre.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200416/CFs16Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars Dust storm over Mare Erythraeum region 11-13 April

Received: 15 April 2020 at 16:21 JST

Hi all,

Whilst I myself have been prevented from imaging for a few days due to cloud, I have been enjoying following the images on various planetary forums. In particular those in the East have been putting out some really great results.

In following the Mars images, I was particularly interested in a set of 3 images by Niall MacNeill over the period 11-13 April. Although Niall was highlighting some darkening in the south, I suspected that there was some significant activity over the M Erythraeum region which appeared to develop over the 3 days, and which I suspected to be dust. This appeared to correlate with images from Andy Casely which showed some brightening in the Chasma Eos/Capri extensions of Valles Marineris, very reminiscent of some of the images late in the global dust storm of 2018.

Anyway, I took the liberty of contacting the MARCI MRO team at MSSS and Bruce Cantor very kindly sent me the attached (with his permission) MARCI composite image, which I have annotated. In addition, he provided the following comments:

“Hi Clyde,

We’re good thanks for asking. Working from home remotely, so at least I have a shorter commute to the office. Thanks for sharing the pictures.

We’re still taking and processing MARCI data. There was a fairly large dust storm that developed over the last few days. It was a merger scenario with a storm around eastern Valles Marineris and a storm that came north the seasonal south polar cap edge in Noachis. Even looks like part of the dust cloud lofted by the storm extended across the equator into the northern tropics around 20 West Longitude. Central and eastern chasms (Melas, Coprates, Capri, and Eos) of Valles Marineris are dusty. Latest MARCI imaging from the13th (attached) indicate the storm is starting to abate (lack of convective structure within the dust cloud boundary). A short-lived regional storm, but given the areal extent of the dust cloud lofted it should be visible for another sol or two as the dust settles out of the lower atmosphere. Feel free to share the image.”

So it was nice to confirm the regional dust storm in Niall’s and Andy’s images. Although it appears that it may be dissipating, it may be worth following for a few more days.

It is also interesting to note that Hellas is still bright, possibly indicating ongoing dust activity, whereas Argyre appears quieter.

I have included Niall’s original set of images and also Andy’s image(I hope you guys don’t mind) for easy reference.

Best regards and stay safe, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars 2020/04/14-Kumamori

Received: 15 April 2020 at 13:15 JST

Mars IR image on 14 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200414/Km14Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤•••••Subject: Jupiter image (April 4th.)

Received: 15 April 2020 at 02:39 JST

Hi all,

Decided to make a start on Jupiter. Average seeing but good to see it again on the capture screen after the break - i'd forgotten how impressive it looks!

http://www.damianpeach.com/jup2020/2020-04-04-0943_7-RGBdp.jpg

Best wishes,

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤•••••Subject: Mars in excellent seeing (March 10th.)

Received: 13 April 2020 at 20:47 JST

Hi all,

Some moments of excellent seeing occurred on the 10th which gave the best result to date for the apparition. A detailed view of Syrtis Major, Hellas and Elysium.

http://www.damianpeach.com/mars2020/m2020_03_10dp.jpg

Best wishes,

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200310/DPc10Mar20.png

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤•••••Subject: Venus on 2020.04.11

Received: 13 April 2020 at 03:36 JST

Dears,

Vénus in infrared and violet, some very faint details could be seen:

http://www.astrosurf.com/delcroix/images/planches/v2020-04-11_18-53-58_ir830_md.jpg

http://www.astrosurf.com/delcroix/images/planches/v2020-04-11_19-19-13_violet_md.jpg

Steady skies,

Marc DELCROIX (Tournefeuille, FRANCE)

http://astrosurf.com/delcroix

¤•••••Subject: Mars in Februay & March -Morita

Received: 12 April 2020 at 23:21 JST

Mars images in Februay & March.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200220/Mo20Feb20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200223/Mo23Feb20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200227/Mo27Feb20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200311/Mo11Mar20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200318/Mo18Mar20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200320/Mo20Mar20.png

Best regards,

Yukio MORITA (Hiroshima, JAPAN)

¤•••••Subject: Mars 12 April 0337UT RGB IR

Received: 12 April 2020 at 20:13 JST

Hi all,

After a number of cloudy mornings, I had this view of Amazonis, with S Sirenum and M Cimmerium extending across the upper section of the image. Elysium is quite bright at lower right, with Propontis quite evident at lower centre. S Gomer is also just visible. Olympus Mons is just on the late afternoon limb at lower left.

Thanks to some input from Niall, I think I am getting a bit of a better grip on the edge artefact, albeit with a bit of extra time and effort (but I think it is definitely worth it).

That's me done with my processing for the day, so it’s time for a nice Easter lunchtime braai(BBQ) with Marina. Enjoy your Easter and stay safe.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200412/CFs12Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars 2020/04/10-Kumamori

Received: 11 April 2020 at 12:20 JST

Mars images on 10 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200410/Km10Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤•••••Subject: Mercury 07-04-20

Received: 11 April 2020 at 05:49 JST

Hi All,

Mercury the other day.

Generally poor seeing but a few good frames captured eventually.

No 'edge rind' problems this time.

All the best,

Simon KIDD (Cottered, Herts, the UK)

¤•••••Subject: Mars 2020/04/09-Kumamori

Received: 10 April 2020 at 20:58 JST

Mars image on 9 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200409/Km09Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤•••••Subject: Mars images

Received: 10 April 2020 at 17:26 JST

Dear Sir,

Some Mars images from the 30th and 31st of March attached.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200330/MJs30Mar20.png

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200331/MJs31Mar20.png

Best regards,

Mark JUSTICE (Melbourne, AUSTRALIA)

¤•••••Subject: Mars images

Received: 10 April 2020 at 10:36 JST

Dear Sir,

Please find the attached Mars image taken on the 8th April 2020 in poor seeing conditions.

A Happy Easter to you.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200408/MJs08Apr20.png

Best regards,

Mark JUSTICE (Melbourne, AUSTRALIA)

¤•••••Subject: Venus 2020.04.08

Received: 10 April 2020 at 00:35 JST

Dears,

Venus under average conditions, still some details can be made out:

http://www.astrosurf.com/delcroix/images/planches/v2020-04-08_19-02-07_violet_md.jpg

http://www.astrosurf.com/delcroix/images/planches/v2020-04-08_19-11-56_ir685_md.jpg

Steady skies,

Marc DELCROIX (Tournefeuille, FRANCE)

http://astrosurf.com/delcroix

¤•••••Subject: Mars 2020/04/08-Kumamori

Received: 9 April 2020 at 18:51 JST

Mars images on 8 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200408/Km08Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤•••••Subject: Mars 2020/04/07-Kumamori

Received: 8 April 2020 at 14:08 JST

Mars images on 7 April 2020.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200407/Km07Apr20.png

Best regards,

Teruaki KUMAMORI (Osaka, JAPAN)

¤•••••Subject: Mars 6 April 0302UT RGB IR

Received: 6 April 2020 at 22:48 JST

Hi all,

A set of Mars data to finish off a busy, but fruitful and enjoyable morning(and day, for that matter!).

I believe dust is still active in Hellas at upper right. I only captured a few quick sets, so it didn't give me much to work with the edge effect, which is exacerbated by Syrtis Major on the limb.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200406/CFs06Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars 5 April 2020 0338UT RGB IR Ongoing dust activity in Hellas

Received: 5 April 2020 at 19:01 JST

Hi all,

I had to contend with some mist and heavy dew this morning after a few days of soaking rain. I have pushed the processing a bit harder than usual, as there are a few interesting features to note:

a) The recent dust activity in Hellas appears to be continuing with a J structure (R and G). The structure is almost spiral in the B.

b) In both my own (and others) recent images I have noted the linear feature that appears to circumnavigate the planet just below the SPC. I am wondering if this is some form of jet stream that is carrying dust from the currently active Hellas and Argyre basins?

c) Damian Peach recently commented on the almost invisible Nodus Alcyonis, which also seems to be the case in my image. It is interesting that the RGB almost gives the impression that this whole region is obscured, although the R image does not seem to indicate excessive dust. Comments welcome.

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200405/CFs05Apr20.png

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)

¤•••••Subject: Mars image (March 9th.)

Received: 4 April 2020 at 00:35 JST

Hi all,

Some moments of very good seeing this session gave the best result so far this apparition. The angular size is still only 5.7" here.

Syrtis Major and Hellas are nicely seen. The SPC is also nicely resolved. Its interesting how faded Nodus Alcyonius has become following last apparitions storms. It looks as weak as ive ever seen it.

http://www.damianpeach.com/mars2020/m2020_03_09dp.jpg

Best wishes,

https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2020/200309/DPc09Mar20.png

Damian PEACH (Selsey, WS, the UK)

http://www.damianpeach.com/

¤•••••Subject: Mars images (March 2nd.)

Received: 1 April 2020 at 09:53 JST