Janssen
November
16, 2007
Uploaded
12/23/07
South is up in this image, more info below.
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.
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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
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