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Mars last 1st december, clouds status, with the 80mm scopetech

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#1 stanislas-jean

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Posted 02 December 2020 - 08:48 AM

Hi,

Here is a mars report performed with the 80mm scopetech refractor under average good images, for the aperture.

The sky was transparent between clouds.

Hellas was actually bright towards Hellespontus. for both filters, blue W80A and deep yellow W12.

Aeria-Arabia was bright also at the limb with the similar extension, blue and yellow channels.

Chryse was relatively bright also, same color channels, with a whitish cloud on Margaritifer Sinus, blue channel.

Conspicuous north polar hood well present, blue and deep yellow color channels.

Neiridium Fretum towards Argyre was clear.

The south polar area appeared clearer than the surrounded area.

 

This is not possible to conclude that dust veils are purely dusty but rather misty with a strong ratio of white haze included.

The other possibility could be rather more distinct clouds, dust near the ground, white cloud above, mainly.

This needs a narrow survey, again, for a straight advise.

More than admitted.

80mm is enough for such, considering the planet size, 14,46" size.

 

Good skies.

Stanislas-Jean

 

resized_mars 01.12.20 18H25UT.jpg


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#2 niteskystargazer

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Posted 02 December 2020 - 09:28 AM

Stanislas-Jean,

 

Very nice Sketch of Mars last 1st December, clouds status, (With the 80mm scopetech) smile.gif .

 

CS,KLU,

 

thanx.gif ,

 

Tom



#3 stanislas-jean

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Posted 02 December 2020 - 09:35 AM

Thanks a lot Tom.

The present forum is more for observers, with say, conventional rules.

We asked more.

Mars is a demanding object.

Always to-day.

Stanislas-Jean



#4 mdowns

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Posted 02 December 2020 - 10:08 AM

Stanislas-Jean,

 Your sketching skills are always obvious and a pleasure to view  and your observing skills are second to none. It's always enjoyable to view your efforts.                              Michael



#5 frank5817

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Posted 02 December 2020 - 10:52 AM

Stanislas-Jean,

 

Nice report and sketching. Your drawings with the blue and yellow filters are useful for bringing out clouds and dark albedo features. I do on occasion use these filters and others as well but I don't often sketch using them.

Very well done.

 

Frank :)



#6 stanislas-jean

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Posted 03 December 2020 - 04:37 AM

Thanks Michael, Frank for your kind words.

Always to evaluate a status on a moment should be researched.

Good skies.
Stanislas-Jean



#7 dweller25

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Posted 04 December 2020 - 07:01 AM

Great drawings S-J, wish I had your seeing conditions and your eyesight



#8 stanislas-jean

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Posted 05 December 2020 - 12:51 PM

Thanks a lot David.

 

Here is a mars report of the last 04th performed with the cass 154mm F12.

Similar views than the 01st december collected.

Salmon color "dusty" veils without filter use, especially on the Aeria-Arabia, also on Hellas basin but lesser.

Nothing else mainly under the present conditions.

Salmon color was used term, ocre color can be also, more adequately (used widely on forum...).

I prefer ocre color.

Observation performed at the same orientation of the planet.

Something semi-permanent.

Good skies 

Stanislas-Jean

 

resized_mars 04.12.20 20H40UT.jpg


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