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Mars 07/12 two sketches

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#1 Kris.

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Posted 07 December 2009 - 08:13 AM

Altough it was a hazy and partly cloudy night, we have to take every chance we get here, only my second view of Mars of the past three months! it's already getting pretty big, time for some better observations :grin:

I made 2 observations, one at 04:00 UT accompanied by a beautiful moon-halo due to the high clouds, and another around 06:00 UT with beginning twilight.

first obvious thing is the large polar cap with a broad dark rim, and Boreo Syrtis just rotating into view. in the north dessert plains i could see 3 dark smudges/streaks, from small and darker to thin and fainter, going from left to right. perhaps Philegra & Aetheria? i'm not sure about the other one.

over to the south are Mare Cimmerium & Mare Tyrrhenum.

i am a bit surprised i couldn't see any limb haze, perhaps there's little dust activity in the region now? (good sign anyway)

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#2 Kris.

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Posted 07 December 2009 - 08:18 AM

the second sketch shows the same thin streak and Nodus Alcyonius above Boreo Syrtis. Syrtis Major has rotated into view with a hint of Hellas i think. the area to the right of Syrtis Major, Aeria, also didn't show limb haze, but looked much lighter, more yellowish imo.

the sketches were done using my apodizing mask.

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#3 jayscheuerle

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Posted 07 December 2009 - 09:38 AM

These are very nicely done, Kris! I hope to be viewing Mars soon, but I'm a bit of a weather wimp! - j

#4 frank5817

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Posted 07 December 2009 - 09:46 AM

Kris,

These two sketches are beautiful and the colors are spot on. :bow: :rainbow:
It is good to see you got a weather break.

Frank :)

#5 niteskystargazer

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Posted 07 December 2009 - 01:19 PM

Kris,

:), nice sketch.

:thanx:,

Tom

#6 Sol Robbins

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Posted 07 December 2009 - 01:47 PM

Great sketches Kris!

#7 Jef De Wit

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Posted 07 December 2009 - 03:16 PM

Kris
It was worth waiting for! I'm going to try to catch Mars during the Christmas-holiday. Getting up so early before going to work is a painfull thing...

#8 JayinUT

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Posted 07 December 2009 - 11:51 PM

Kris,

Wonderful captures! I'm with Jef, I'll have to get up one morning during the two weeks of Christmas break to capture Mars.

#9 dweller25

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Posted 08 December 2009 - 04:04 AM

Excellent drawings Kris.

I got up this morning to try drawing Mars - but too many clouds !!

Instead I will enjoy your early morning :-)

#10 Special Ed

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Posted 08 December 2009 - 06:20 AM

Great work, Kris. :) Seeing those faint features in the northern desert is difficult--good eye!

#11 Kris.

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Posted 08 December 2009 - 09:22 AM

thanks for the replies everyone. i would advise trying to observe mars in december because it will get smaller again by the end of January :(

Jay & Jef: i was lucky to have a day off Monday ;) but now you can easily get up one hour earlier to observe mars high in the sky for about half an hour, bring all your stuff back inside and then prepare to go to work.

#12 Tommy5

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Posted 08 December 2009 - 08:53 PM

Great sketches of Mars very nice coloring.

#13 Rich (RLTYS)

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Posted 13 December 2009 - 08:04 AM

Kris

Both sketches are very impressive. Keep up the good work.

Rich (RLTYS)

#14 NUNKY

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Posted 13 December 2009 - 08:50 AM

Beaux dessins Kris !

#15 CarlosEH

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Posted 13 December 2009 - 10:52 PM

Kris,

An outstanding set of Mars observations. You have recorded a good amount of detail over the surface of Mars. I have labeled the major albedo features visible. I look forward to your future observations. Thank you for sharing them with us all.

Carlos

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#16 Kris.

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Posted 15 December 2009 - 05:17 AM

Thanks Carlos, as always appreciated!

May I ask on what maps you base your labeling? There are some regions I haven't heard of yet.

#17 CarlosEH

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Posted 15 December 2009 - 02:41 PM

Kris,

Since the first map of Mars produced by the German astronomers Wilhelm Beer and Johann Heinrich Madler in 1840 (using a 3.75-inch Fraunhofer refractor in Berlin) the dark and light albedo markings over the surface of Mars have received many names. The names initially reflected famous astronomers who studied the red planet in the past, but later included mythology and geography. Giovanni Virginio Schiaparelli added greatly to the nomenclature of Mars after the perihelic opposition of 1877 using an 8.6-inch Merz refractor from Milan, Italy. The International Astronomical Union (IAU) produced an offical nomenclature map in 1958 based, in part, on the nomenclature of Schiaparelli and other classical astronomers.

I primarily refer to the map of Mars produced by the Japanese astronomer Shiro Ebisawa (who based his map upon the one produced by the Greco-French astronomer Eugene M. Antoniadi) as well as a Mars map produced by Daniel Troiani and myself for ALPO. Other excellent Mars maps are vailable but some can get very complicated.

Links;
http://marsprogram.j...ch/marsnom.html (ALPO Mars map)
http://alpo-j.asahik...test/map123.JPG (ALPO Japan Mars map)
http://www.britastro.org/mars/maps.htm (BAA Mars web site containing maps)

I hope that these help. Happy Holidays and a Happy New Year!

Carlos

#18 Kris.

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Posted 15 December 2009 - 05:35 PM

thanks! & happy holidays to you as well!






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