Eudoxus and Aristoteles

0.003 seconds exposure, SBIG ST-8E CCD.
18" f/10.5 Ritchey-Chrétien telescope at prime focus.

Shortly before first quarter, a pair of large and prominent craters are visible. These are Eudoxus to the south (top) and Aristoteles, which is on the edge of Mare Frigoris.

To the west of Eudoxus is the Alpine Valley cutting through the lunar Alps, and further to the west is the large, dark-floored crater Plato.

0.005 seconds exposure, SBIG ST-8E CCD.
30" f/5 newtonian at prime focus.

0.005 seconds exposure, SBIG ST-6 CCD.
16" f/20 refractor at prime focus.

Combination of 20, 0.02 second exposures.
SBIG ST8XE CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.

Combination of 20, 0.02 second exposures with an H-alpha filter. SBIG ST-8XE CCD.
20" f/6.8 cassegrain with a 2x barlow lens.

Combination of 20, 0.02 second exposures with an H-alpha filter. SBIG ST-8XE CCD.
20" f/6.8 cassegrain with a 2x barlow lens.

Combination of 2000, 0.002 second exposures.
DMK video CCD. 12" f/10 schmidt-cassegrain telescope at prime focus.