Ptolemaeus area

[Mike JW]

No doubt we have all looked at Ptolemaeus, Alphonsus and Arzachel many times but what intrigued me was to the north of Ptolemaeus lying between Herschel and Glyden is a long valley running slightly west of north. The more I looked at the area the more intrigued I became and so began the sketch. As usual I got carried away and kept sketching all sorts of detail, all over the area. So far I have been unable to find out any information about this valley. The terminator was fascinating – various shades of black???

Key features laid out at the eyepiece and then the sketch completed later. I have done two versions – my normal graphite pencil on white paper and then coloured pencils on black paper (need to develop this technique). On both I have used a white gel pen to enhance the white.

Mike

PS Looking at photos of the region this valley (Glyden valley) seems to be a very steep sided V-shaped valley, hence its very black shadow contrasting with the sunlit portion.  Tried to imagine walking along it - awe inspiring with steep sides towering over.........Also noted it is on the Lunar 100 list.

 

 

Edited August 11, 2019 by Mike JW
spelling mistake and more info added

[Ruud]

Wonderful, Mike, both views. Excellent job!

[Mike JW]

Thanks Ruud, fun trying different techniques. Mike

[viewer]

Hi!

Very nice sketches. Extraordinary with the black on white and white on black in the same session!

[Mark Daniels]

 Ery nice indeed

[acr_astro]

Hi Mike,

great sketches of this excellent lunar sketching target!

Clear skies

Achim