Copernicus

1/250 second exposure, Kodak Ektrachrome 400 slide film.
300mm f/6 newtonian telescope at prime focus.

The large crater Copernicus comes into view when the moon is about 9 days old. It is situated in the north eastern quadrent of Oceanus Procellarum, just near the Carpathian mountain range and to the south of Mare Imbrium. Copernicus is about 90 kilometres across and the centre of a bright system of rays. The walls display several magnificent terraces. One of the most memorable photographs of the Apollo era was taken by Lunar Orbiter 2 in 1967, when it photographed Copernicus from an oblique angle.

1/60 second exposure, Kodak Tri-x 400 film.
5" f/5 refractor plus 6mm orthoscopic eyepiece.

This photograph was taken in 1971, and was one of the first photographs I made using the 5" refractor. The two craters above Copernicus are Reinhold and Lansberg, while at the right-hand edge, Kepler, with its system of bright rays is visible.

0.02 seconds exposure, SBIG ST-8 CCD.
8" f/10 schmidt-cassegrain at prime focus.

Looking west of Copernicus towards Kepler and south towards the Fra Mauro highlands.

0.02 seconds exposure, SBIG ST-8 CCD.
8" f/10 schmidt-cassegrain at prime focus.

Looking north of Copernicus onto Mare Imbrium and the crater Euler.

0.02 seconds exposure, SBIG ST-8 CCD.
8" f/10 schmidt-cassegrain at prime focus.

This image looks east of Copernicus towards the crater Manilus and Mare Vaporum. The pair of large craters above (south) of Manilus are Godin (top) and Agrippa (below).

0.005 seconds exposure, Meade 416xt CCD.
8" f/6 newtonian telescope plus a 2x barlow lens.

0.001 seconds exposure, SBIG ST-9E CCD.
16" f/10 schmidt-cassegrain plus f/6.3 focal reducer.

0.01 seconds exposure, Meade 416XTE CCD.
16" f/20 refractor at prime focus.

0.002 seconds exposure, SBIG ST-8XE CCD plus H-alpha filter.
16" f/10 schmidt-cassegrain plus 2x barlow lens.

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.

Combination of 20, 0.02 second exposures.
SBIG ST10XE CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope and a 2x barlow lens.

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

Combination of 2000, 0.002 second exposures.
DMK video CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.

Combination of 2000, 0.002 second exposures.
DMK video CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.