Kepler

Combination of 10, 0.05 second images using an H-alpha filter.
SBIG ST-8XE CCD. 16" f/10 schmidt-cassegrain telescope plus a 2x barlow lens.

Situated almost in the middle of Oceanus Procellarum, is the bright crater Kepler. The crater is surrounded by an extensive system of bright rays.

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.
SBIG ST10XE CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.