October 15, 2020

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Sweet Rings

Originally published April 10, 2011 LPOD-Apr10-11.jpg
image by Bob Pilz

Do you see three basin rings here? Look closer. And step back for a more synoptic stretching from Theophilus to Fracastorius. In fact, if this ridge ring is the boundary of an inner area of collapse to a lower level (as at Crisium) it might explain what happened to the missing northern arc of Fracastorius' rim.

Chuck Wood

Technical Details
UD: 2008/08/19, UT: ~07:45. 200mm f/6 Newtonian, Televue 3X Barlow, DMK 31 camera, Green Filter; 15 fps, Exposure 1/38sec, 400/9000 frames. Reprocessed by Registax V6, PS CS4, FocusMagic. Taken from Lat: 35 degrees 36 minutes N, Long: 82 degrees 33 minutes W, Elev: ~850m

Related Links
Rükl plate 59

Yesterday's LPOD: Panorama

Tomorrow's LPOD: Inspired To Go Ot

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