November 16, 2007

Uploaded 12/23/07

South is up in this image, more info below.

1024 x 768 size

 Janssen is a huge 115 mile diameter damaged crater, which appears to be six sided. The inside floor is very chaotic, with a small rille cutting a quarter circle inside from wall to wall. (Rimae Janssen). On the lower left of the inside of Janssen is a beautifully formed terraced crater Fabricius, some 47 miles in diameter. Inside are some very stunning linear mountain chains, seen well in this reproduction.

Processing: 300/1000 best frames, MAP 55 alignment in Registax, Regulated Van Cittert Deconvolution in PixInsight Pro, Levels and Contrast Masking In Photoshop CS3, Focus Magic Plug in.

Instrument: 12.5" f/5 with 2x Televue Big Barlow Platform: Astrophysics AP1200 CCD Camera: Image Source DMK 31AU03.AS Filter: Hoya R72 Exposure: 1/108 sec 15fps Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing Poor, Transparency 8/10 Outside Temperature: 35F Processing: Registax, PixInsight Pro, Photoshop CS3, Focus Magic Plugin