June 16, 2009

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Out On a Gaussian Limb

LPOD-June16-09.jpg
image by Yuri Goryachko, Mikhail Abgarian & Konstantin Morozov, Minsk, Belarus. North mostly to the left.

I've never seen some of these craters before. Yes, Gauss at far left has been imaged occasionally, but dark-ray crossed Hahn and even Plutarch are rarely imaged with good resolution. Now in this marvelous clip from a broader mosaic, Yuri, Mikhail and Konstantin have revealed all these craters and others closer to the limb. The star is Joliot, a 164 km diameter, mare-floored with a rubbled central area that looks like it was trying to form a ring. Seneca is marked with a question mark, not because I am uncertain of the identification, but I am quite doubtful that that name is warranted.

Chuck Wood

Technical Details
May 31, 2009 15:38-17:25UT. Maksutov-Cassegrain Santel D=230mm F=3000mm + barlow 1.9x + Astronomik Red filter + Unibrain Fire-i 702 CCD b/w camera (IEEE-1394, 1388x1040). Processing in Avistack and Maxim DL. Postprocessing in Photoshop. Seeing 7-8/10, Trans 5/5.

Related Links
Rükl plate 16 & 27

Yesterday's LPOD: Convergence

Tomorrow's LPOD: Beyond the Cat's Smile

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