June 12, 2019
Hole Full of Shadow
Originally published February 28, 2010
image by Raffaele Barzacchi, Italy
We mostly observe areas of the Moon that are illuminated. but sometimes the lack of light creates patterns that are evocative and informative. Here the first rays of sunrise reflect brightly from the upper walls of Plato, and faintly from the exterior eastern rim. This emphasizes that the inner wall is steep and relatively smooth, accounting for the brightness, whereas the outer rim has a low slope covered with boulders and rubble.
I leave for the 41st Lunar and Planetary Science Conference today and will try to post some results from the meeting.
Jan 23, 18:38 UT. C14 XLT, f/20 + R+IR filter.
Rükl plate 3