Atlas
and Hercules
Uploaded
12/17/08
South is up in this image, more info below.
This magnificent
pair of large craters stands out sharply on the moons north east
quadrant. Atlas, on the left is 53 miles in diameter and over
9000 feet deep. A fantastically complex crater, the rim terraces
rise high over the craters floor, which is covered with hills,
lava channels and small craterlets.
On the right is
the similar sized Hercules, some 42 miles across. This crater
is deeper, some 9700 feet deep and forms very steep slopes on
the inner terraces. This crater is famous for the two dark spots
on its interior floor which are most evident during the full
moon and nearly disappear during the partial phases.
Processing: 300/1000
best frames, MAP 30 alignment in Registax, Wavelets in Registax,
Levels and Contrast Masking In Photoshop CS3, Focus Magic Plugin.
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Instrument: 12.5" f/5 with 2x Barlow
Platform: Astrophysics AP1200
CCD Camera: Image Source DMK 31AU03.AS
Filter: Hoya R72
Exposure: 1/60 sec 15fps
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing good, Transparency 8/10
Outside Temperature: 35F
Processing: Registax, Photoshop CS3, Focus Magic Plugin
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