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Mars january, veils on planet equator area

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#1 stanislas-jean

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Posted 16 January 2021 - 04:54 AM

Hi,

Here are some results about Mars performed during january, 9th, 10th and 15th.

The planet ground color is lefting more and more its past yellowish coloration.

Some veils were appearing on the equator area, more at the limb side.

The filter color analysis exhibited to be more mist with a high ration of dust still.

Sometimes its density allowed to occult the main feature under.

Lastly on the 15th this seemed to dissipate with a relative absorption density.

Those veils seasonally were attached to the limb and the terminator, not turning with the ground

Here are:

 

resized_mars 31.12.20 21H45UT.jpg

 

resized_mars 01.01.21 18H20UT.jpg

 

resized_mars 09.01.21 17H00UT.jpg

 

resized_mars 10.01.21 21H05UT.jpg

 

resized_mars 15.01.21 20H20UT.jpg

 

for a comparison:

 

resized_mars 08.12.20 15H45UT.jpg

resized_mars 08.12.20 20H30UT.jpg

 

good skies.

Stanislas-jean

 

 

 

 

 

 


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#2 mdowns

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Posted 16 January 2021 - 06:05 AM

Stanislas-jean,

 Science & Vie, or was that National Geographic,just called here looking for yougrin.gif.As always,another top-tier presentation.Well done.


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#3 stanislas-jean

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Posted 16 January 2021 - 06:05 AM

For the 15th there was not a good initiative for highlughting the veil near Syrtis Major.

Here a more appropriate. Sorry.

 

resized_mars 15.01.21 20H20UT.jpg

 

Stanislas-Jean

 

 


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#4 stanislas-jean

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Posted 16 January 2021 - 08:19 AM

Thanks Mdows for your words.

Don't know if the N.G. could be interrested by such, but they could, welcome are they, CN forumers as well but more as they provide usefull comments mostly. This is exchanging.

 

Thanks gents for your likes.

Good skies.

Stanislas-Jean



#5 frank5817

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Posted 16 January 2021 - 10:59 AM

Stanislas-Jean,

 

Superb sketches all with excellent description of the color  and features you are seeing.

 

Frank :)



#6 stanislas-jean

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Posted 17 January 2021 - 05:08 AM

Thanks a lot Frank

Stanislas-Jean



#7 PrairieAstronomer

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Posted 17 January 2021 - 05:49 AM

Very impressive drawings!!!

#8 stanislas-jean

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Posted 18 January 2021 - 04:29 AM

Thanks a lot.

Stanislas-Jean



#9 niteskystargazer

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Posted 19 January 2021 - 04:16 PM

Stanislas-Jean,

 

Very nice sketches of Mars January, veils on planet equator area smile.gif .

 

CS,KLU,

 

thanx.gif ,

 

Tom



#10 stanislas-jean

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Posted 21 January 2021 - 04:41 AM

Thanks a lot Tom for your kind words.

Stanislas-Jean



#11 stanislas-jean

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Posted 24 January 2021 - 05:20 AM

Here is a mars report performed last evening under average images with the cassegrain 203mm.
A veil was noted on Electris, mare Sirenum and Mnemonia near the planet limb, probably a mist.
The north polar area exhibited more a cap boundary than a hood.
Chaos appeared bright whitish.
The overall ground color of the disk looked pinkish light, orange at the naked eye under the transparent sky.
The planet looked different than the previous observations, north cap appearing it seemed no more a hood, the veil at the limb suggested a different processus of occurence.

Hope we have clear skies later.

Faithfully.

Stanislas.

 

resized_mars 23.01.21 19H40UT.jpg


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#12 frank5817

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Posted 24 January 2021 - 10:59 AM

Stanislas,

 

This is a very fine Mars sketch full of excellent details.

 

Frank :)



#13 niteskystargazer

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Posted 25 January 2021 - 01:55 PM

Stanislas-Jean,

 

Nice sketch of Mars smile.gif ,

 

CS,KLU,

 

Tom



#14 stanislas-jean

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Posted 26 January 2021 - 05:19 AM

Thanks a lot, Tom, Frank and gents for their kind likes.

 

Here is a mars report performed last 25th with the 127EDT refractor apo under average images.

Some questions were raised among the community observers regarding a bright streak appearing in Hella bassin.

I tried to analyse this question using color filters and evaluate the kind of the veil.

It seemed linked to a white elongated cloud spreading towards the limb.

The status of the veils against color filter is given through the submitted drawings.

The red filter showed confidential brightness, the green, yellow-green and the blue filters brought higher brightnesses.

A white cloud charged of dust, a mist more probably.

I had no time and possibility to exercise a third period of observation in order to confirm this assessment and will have no opportunity to follow the Hellas bassin as the forecast weather will be bad, sky closed.

Nothing more.

 

Good skies.

Stanislas-Jean.

 

resized_mars 25.01.21 17H40UT.jpg


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#15 stanislas-jean

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Posted 03 February 2021 - 04:15 AM

HI,

A hole at last through the clouds.

Here is a mars report performed last 2nd feb. with the 203mm cassegrain. Images were just average but enough for seeing the atmospheric veils.
North cap appearing, hood on the south polar region, veil on the Solis Lacus region near the limb of the planet.

Rather brightest using the yellow green filter than the blue filter.

Good skies.

Stanislas-Jean

 

resized_mars 02.02.21 19H40UT.jpg


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#16 frank5817

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Posted 03 February 2021 - 09:53 AM

Stanislas-Jean,

 

Wow, excellent sketching on the tiny Martian disk.

 

Frank :)



#17 niteskystargazer

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Posted 03 February 2021 - 03:13 PM

Stanislas-Jean,

 

Fine sketches of Mars. smile.gif ,

 

CS,KLU,

 

thanx.gif ,

 

Tom



#18 stanislas-jean

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Posted 04 February 2021 - 05:15 AM

Thanks a lot again Frank, Tom.

 

Here is a mars report performed last 3rd february with the 203mm cassegrain.
Images were average good under a transparent sky.
Veils were ploted on the drawings.
It appeared them rather white haze.

The north cap is thawing, with regards with hazing appearing in the blue channel.

The south cap region was still hazy whitish.

 

Have good receipt of the present report.

 

resized_mars 03.02.21 18H25UT.jpg

 

I enclose here also an uranus report, the planet being close to mars.

The banding appeared faintly but was obvious.

Images were average good under a transparent sky.

 

resized_uranus 03.02.21 19H05UT.jpg

 

Good skies.

Stanislas-Jean

 


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#19 niteskystargazer

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Posted 04 February 2021 - 09:56 AM

Stanislas-Jean,

 

Nice sketches of Mars (On Feb 3rd) smile.gif .

 

CS,KLU,

 

thanx.gif ,

 

Tom



#20 frank5817

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Posted 04 February 2021 - 10:35 AM

Stanislas-Jean,

 

Very fine sketches of Mars and Uranus. Great to see the fine detail.

 

Frank:)



#21 stanislas-jean

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Posted 05 February 2021 - 02:14 AM

Thanks again Tom, Frank.

Stanislas-Jean




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