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Crater Deslandres

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#1 Randolph Jay

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Posted 21 July 2018 - 08:51 AM

Deslandres is a very ancient crater from the pre-Nectarian era of bombardment (3.92-4.6 billion years ago).  At low sun angles, and given its favorable location for observation, a whole host of features become visible on its floor.  Several catenae can be seen as well as the outlines of buried craters.  An interesting feature I saw at this low sun angle was a rille like feature ( graben like ) that ran from the southeast to the northwest crossing the northern portion of crater Lexell.  This remained visible during the time I took to do this sketch.  The floor also shows a slightly convex shape perhaps due to volcanic uplift (?).  To the northwest, Rupes Recta was getting ready to make its debut with the rising sun, but alas by that time the moon was behind a line of trees.  This sketch was done using my Ioptron 150 with a 9mm Televue Nagler.  It was done with white Conte pencils, crayon and white charcoal.  Started around 01:30 UT, finished at 0:240 UT July 21st. Thanks for looking...this is a really fine feature with this sun angle.

Regards,

Randolph

Deslandres.jpg

Deslandreslabels.jpg


  • Special Ed, Cames, Jef De Wit and 10 others like this

#2 beggarly

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Posted 21 July 2018 - 09:40 AM

Nice sketch!
Thebit is a bit further north. The crater is Thebit P.

Attached Thumbnails

  • Deslandres.jpg

Edited by beggarly, 21 July 2018 - 09:41 AM.


#3 pedrovillamiel

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Posted 21 July 2018 - 10:52 AM

Beautiful your drawing, it is always a pleasure to look at your craters.
A greeting.



#4 rerun

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Posted 21 July 2018 - 12:40 PM

Hi Randolph ,

 

A  beautiful sketch of Crater Deslandres with many details. It looks very realistic.

You spent a lot time for this observation. Thank you for sharing with us.

 

CLEAR SKIES 

 

MARKUS



#5 astronz59

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Posted 21 July 2018 - 10:09 PM

Just superb Randolph! As usual, great choice of subject and sketch execution! waytogo.gif



#6 Uwe Pilz

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Posted 22 July 2018 - 08:52 AM

A crater in a beautiful light. I like the sketch, full of detail.



#7 Warmvet

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Posted 22 July 2018 - 11:57 AM

Randolph,

 

This sketch is right up there with your finest. The floor does indeed appear convex in this rendering.  So many fine and subtle details you have captured.

 

Cindy



#8 niteskystargazer

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Posted 22 July 2018 - 02:00 PM

Randolph,

 

Very nice sketch of  Crater Deslandres smile.gif .

 

CS,KLU,

 

thanx.gif ,

 

Tom



#9 frank5817

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Posted 22 July 2018 - 03:10 PM

Randolph,

 

This is a beauty. A superb capture of this region of the Moon on the terminator.

Features that we normally can't see pop out in this spectacular sketch. The convex bulge of the  Deslandres crater shows very well in your sketch along with lots of other features. Excellent!

 

Frank :)



#10 Rutilus

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Posted 22 July 2018 - 03:58 PM

Excellent work.



#11 Randolph Jay

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Posted 23 July 2018 - 08:44 PM

Thank you beggarly, Pedro, Markus, Ian, Uwe, Cindy, Tom, Frank and Rutilus.  Thank you beggarly for posting that detailed map and the information about Thebit P!!

Regards and clear skies,

Randolph




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