Cleomedes

Move your mouse over the picture to see the names of the various craters.

This, it seems, is a rather uninteresting part of the Moon.  It is immediately north of Mare Crisium.  The largest crater is Cleomedes which is 126 Km in diameter and was flooded with lava about 3,900 million years ago.  Its original central peak can be seen just sticking above the lava.  Despite the low angle of the Sun, little more than the four craters show up on its floor.  Geminus is a younger crater but little of it can be seen as the floor is in shadow.  Berzelius is of similar age to Cleomedes. The scale markers are approximately 100 Km north and west. The picture was taken with a ToUcam attached to my LX200 on 18th November 2005 at 21:50 UT, when the Moon was 17.6 days old. Date and Time: 18th November 2005 21:50 UT Camera: ToUcam 740K Telescope: LX200 at prime focus with IR-pass filter Capture: K3CCDTools. Low gamma, 1/25", 60% gain, 511 frames Processing: Registax. 89 frames stacked. Wavelets 1 = 10, gamma 1.2

This is the same general area imaged less than a day earlier. The picture was taken with an Atik camera attached to my LX200 on 3rd February 2007 at 21:19 UT, when the Moon was 16.3 days old. Date and Time: 3 February 2007 21:19 UT Camera: Atik 1-HS Telescope: LX200 at prime focus Capture: K3CCDTools. Low gamma, 1/250", 30% gain, 363 frames Processing: Registax. 14 alignment points, 299 frames stacked. Wavelets 1 = 10, 2 = 5, contrast 135

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