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Mars through a thick blanket of clouds 23/03

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#1 Kris.

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Posted 24 March 2010 - 04:54 AM

another quick 15min sketch because the clouds (no fog or mist, more like a milky sky at day) made only the moon, mars and a few stars visible yesterday. mars looked even dimmer through the 12" than on a clear night using the apodizing mask! transparancy was very poor.

seeing was about average, and less detail was visible. syrtis major rotating in view with mare cimmerium & tyrrhenum. the region above these was lighter than the desserts. the dark band with utopia around the north poalr cap (which oddly looked brighter than other observations, probably because the white light is least hindered by the clouds?). around the region where the hyblaeus extension is, i could clearly see some dark streak, but nodus alcyonus was again not resolved.
some limb brightening was seen (not covering the whole of the evening limb, but only the upper half), and possibly a little brighter region at lybia, but i'm not quite sure.

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#2 Special Ed

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Posted 24 March 2010 - 07:14 AM

Kris,

Excellent sketch and observation! Your rendering is very faithful to the eyepiece view. And you caught the Red Planet when it broke 10 arcseconds in diameter. You have developed a good eye for Mars over the course of this apparition. :bow:

#3 ladip63

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Posted 24 March 2010 - 09:30 AM

WOW! Great job Kris :D :bow:

Lynn

#4 CarlosEH

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Posted 24 March 2010 - 05:01 PM

Kris,

An excellent observation of Mars, even through a thick blanket of clouds! You have recorded much detail over the Martian surface at an apparent diameter less than 10 arc-seconds (9.9"). I have labeled the major albedo features visible. I hope that you like it. Thank you for sharing it with us all.

Carlos

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#5 Tommy5

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Posted 24 March 2010 - 07:32 PM

very nice Mars sketch, very accurate compared to the eyepiece view congrads.

#6 frank5817

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Posted 24 March 2010 - 09:18 PM

Kris,

Another beautiful Mars sketch with much detail and great color. :bow: :bow: :rainbow: :bow: :bow:
And Carlos has already labelled it. How great is that.

Frank :)

#7 roadi

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Posted 24 March 2010 - 10:01 PM

A great sketch and a view to behold ;)

#8 roadi

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Posted 24 March 2010 - 10:02 PM

Carlos,
Thats a great map of mars! thanks for posting it :)






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