I set up to sketch Rupes Recta on the floor of Mare Nubium. From the eastern edge of Mare Nubium you can see the triplet craters, Thebit (57 km), A and L. Next moving westward is the Imbrian escarpment Rupes Recta , not a true wall in the usual sense but on one side standing more than 300 meters high at some locations and 114 km in length. The scarp face would be visible from the rim of young crater Birt’s (17 km) to the west of “straight wall” if you could get there. Touching the rim of Birt to the east is Birt A.
Sketching:
For this sketch I used: black Canson paper (8” x 10”), white and black pastel pencils, assorted erasers, and blending stumps
Telescope: 13.1” f/6 Dobsonian working at 222X (9mm ocular)
Date: 11-22-2012 01:00-02:45 UT Temperature: 12°C (54°F)
Hazy, slightly breezy
Seeing: Antoniadi III
Colongitude 10.1 °
Lunation 8.1 days
Illumination 64.9%
Alt. 45°
Frank McCabe
Great sketch Frank, very bold shadows make the scarp really stand out.
-Ivan
Frank, very realistic sketch, as usual. Beautiful lights!
Aleksander
Your best sketch to date Frabnk in my humble opinion, I love it 🙂
Dale UK
Ivan, Aleksander, and Dale,
Thank you all for your very kind words. It was a dramatic scene to witness and attempt to capture.
Light and shadow on our Moon can be mesmerising.
Frank 🙂
One of my favorite craters, you make it come alive Frank!
Thia
Gorgeous work Frank!
Regards,
Mel R.
I can only agree with other comments here Frank, this really is a beautiful lunar sketch and the written detail you give just tops it off.
Very well done! 🙂
Mike
Thia, Mel and Mike,
Thank you for all these nice comments on my sketch.
Frank 🙂
Whaw Frank, lovely sketch, perfectly done.
Michel
Michel,
Thank you.Frank 🙂
Great and excellent sketch Frank,you are always the Master!!
Sempre bellissimi!
Ciao,Giorgio.
You are true artist!!!
It is art of a light & shadow.
Giorgio and Nightwid,
You are both too kind and thank you for your comments.
I look forward to seeing more of your sketches here.
Frank 🙂