Move your mouse over the picture to see the names of the various features. This picture is a mosaic of four pictures taken with infra-red light shortly before the images in the visible. It covers a rather smaller area than the previous picture, but the maria show up with greater contrast in the infra-red. Sadly (or should I say 'carelessly'?) I have managed to miss the place where Mare Novum might have showed up well. There are several dark patches on this picture that appear to have no names. The prominent little patch close to Lacus Perseverantiae (Lake of Persistence) is the crater Firmicus, which is 58 Km in diameter, 1700 metres deep, and has a very flat floor with no central peak. It is an old formation so undoubtedly has been flooded with lava so could be termed a 'lake'.
Date and Time: 12th November 2005 18:01 to 18:09 UT
Camera: ToUcam 740K
Telescope: LX200 with IR-pass filter
Capture: K3CCDTools. 0% gamma, 1/33", 8% gain, 450 to 550 frames
I should perhaps point out that 'Lacus Risus Felis' is an unofficial name given to this feature by Chares Wood in his book The Modern Moon (page 97), following a comment by E. A. Whitaker that the feature resembles the grin on the face of the Cheshire Cat in Alice in Wonderland which remained after the rest of the cat had faded from view.
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Processing: Registax. 123 to 258 frames stacked. Wavelet 1,2 = 10, Histogram 50-200.
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