Sinus Iridum

1/500 second exposure, Fuji Super HG II 400 film.
300mm f/6 newtonian telescope plus a 25mm eyepiece.

When the moon is about 10 days old, a large bay in the north of Mare Imbrium becomes visible. This is Sinus Iridum, the Bay of Rainbows. Shortly after sunrise, this region is a facinating area to view. The shadow from Laplace Promintary (left point of bay) are very long and if the light is just right, may be split in two as the sun shines through a valley near the end of the promintary. To the left of Sinus Iridum is the Straight Range and further to the left is the crater Plato. The two small craters above Sinus Iridium are Leverrier (left) and Helicon.

1/500 second exposure, Kodak Tri-X 400 film.
10" f/9 newtonian telescope plus a 9mm eyepiece.

1/125 second exposure, Kodak Tri-X 400 film.
10" f/9 newtonian telescope plus a 9mm eyepiece and 2x barlow lens.

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

The large crater on the rim of the bay is Bianchini.

0.02 second exposure, SBIG ST-8E CCD.
30" f/5 newtonian telescope at prime focus.

The above image was taken through fairly thick clouds that had stopped the asteroid photometry project I had been trying to work on. The Moon could only just be seen visually through the clouds, so I decided to have a go at imaging it just to see what coould be obtained. I was quite surprised at how good it turned out!

Combination of 20, 0.002 second images using an H-alpha filter.
SBIG STL-1001E CCD. 16" f/10 schmidt-cassegrain telescope plus a 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 imagins using an H-alpha filter.
SBIG STL-1001E CCD. 300mm f/18 cassegrain telescope and a 2x barlow lens.

Combination of 20, 0.02 second exposures with an H-alpha filter. SBIG ST-10XE CCD.
20" f/6.8 cassegrain at prime focus.

Combination of 20, 0.02 second exposures with an H-alpha filter. SBIG ST-10XE CCD.
20" f/6.8 cassegrain with a 2x barlow lens.

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 with a 2x barlow lens.