J. Herschel Home

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

J. Herschel is an old crater, around 4,000 million years old, situated in the far north.  It is 160 Km in diameter with few high walls supporting numerous smaller craters.  Anaximander to its north is 70 Km in diameter, 2800 metres deep, and of the same age.  Carpenter, however, is much younger at less than 1,000 million years, and is 61 Km in diameter and 2600 metres deep.  Similarly, Anaximenes is old and Philolaus much younger as can be seen from the fact that it overlays what looks like a much older crater.
More pictures of this area can be seen on my Pythogoras page.
The picture was taken with a ToUcam attached to my LX200 on 25th October 2004 at 22:36 UT when the Moon was 12.6 days old. The scale markers are approximately 100 Km north and east and apply at J Herschel.

Date and Time: 25th October 2004 22:36 UT
Camera: ToUcam 740K
Telescope: LX200 at prime focus (FL 2500 mm)
Capture: K3CCDTools. High gamma, 1/500", 12% gain, 409 frames
Processing: Registax. 131 frames stacked. Wavelets 1,2 = 10
This is the same area (the right way up this time!) with the light coming from the other direction. The picture was taken only 15 minutes before sunrise so required more enhancing than usual.
The picture was taken with my raw-modified Atik camera attached to my LX200 on 17th October 2006 at 06:17 UT when the Moon was 25.0 days old. The scale markers are approximately 100 Km north and east and apply at J Herschel.

Date and Time: 17th October 2006 06:17 UT
Camera: Atik 1-HS
Telescope: LX200 at prime focus (FL 2500 mm)
Capture: K3CCDTools. Low gamma, 1/25", 56% gain, 604 frames
Processing: Registax. 587 frames stacked. Wavelets 1-3 = 10, contrast 175, brightness -26, histogram 0-220
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