South of Mare Nectaris Home

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

This is a mosaic of two pictures of an area to the south of Mare Nectaris.   Fracastorius is an ancient crater, about 3,900 million years old and 130 km in diameter, whose northern walls are broken down and lava appears to have flooded in from Mare Nectaris.  Its other walls, however, are steep and high.  The most dramatic feature in this picture is the Rupes Altai, an escarpment 500 Km long and up to 1000 metres high.   At its southern end is Piccolomini, 90 Km in diameter, 4500 metres deep, and with an imposing central mountain with four peaks.
The scale markers are approximately 100 Km north and east.
The picture was taken with a ToUcam attached to my LX200 on 28th February 2005 at 0200 UT, when the Moon was 18.4 days old.
Date and Time 28th February 2005 02:00 UT
Camera ToUcam 740K in colour mode
Telescope LX200 at prime focus
Capture K3CCDTools. High gamma, 1/100", 0% gain
Processing Registax. Wavelet 1-2 = 10
Image converted to monochrome. 
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