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Moon in H-Alpha | |
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| Date: | November 30, 2003 |
| Exposure: | 1 x 1/10 sec |
| Processing: | PhotoShop Unsharp Mask |
| Conditions: | Average |
| Scope: | AP-155EDF @ f/7, CS 3nm H-Alpha filter. |
| Camera: | ST-8XE/CFW-8A, -25°C |
| Comments: | Took this while waiting for the darkness. The night was clear with no wind, but the temperature was stuck on 48°F and the previous night it had gone down to 25°F. I had to use water cooling to get the camera down to -25°C. This was the best of about 25 shots that I took. |