Aristoteles and Eudoxus

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

Aristoteles and Eudoxus are an interesting pair of craters to the north of Mare Serenitatis.   They are comparatively young, Aristoteles being between 1,000 and 3,000 million years, and Eudoxus less than 1,000 million years old.  Craters of this size would be expected to have large central mountains but both have only a few low hills.  The walls are also not typical of craters this size.  The area around them is very rugged;  maybe the meteorites that formed these craters fell on ejecta from earlier impacts that had not consolidated (my speculation!).  Aristoteles is also interesting as one of few examples of a large crater supported by a smaller one, in this case Mitchell which must be the older of the two.  Lacus Mortis, despite its name, is a large crater, 155 Km in diameter, and contains Burg (41 Km) entirely within it.   Criss-crossing the floor of the lacus are several rimae which take their name from Burg. The scale markers are approximately 100 Km north and east. The picture was taken with a ToUcam attached to my LX200 on 23rd September 2005 at 01:58 UT, when the Moon was 20.1 days old.

Date and Time	23rd September 2005 at 01:58 UT
Camera	ToUcam 740K
Telescope	LX200 with IR-pass filter
Capture	K3CCDTools. High gamma, 1/25", 0% gain, 419 frames
Processing	Registax. 72 frames stacked. Wavelet 1 = 10

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