Atlas and Hercules

Uploaded 12/17/08

South is up in this image, more info below.

1290 x 960

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.

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