About this Image |
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A close-up on the not wellknown crater Longomontanus west of Clavius at low sun angle and good seeing conditions with the16" cassegrain at f/10. |
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| Optics |
16" cassegrain in secondary focus at f/10 |
| Mount | MK-100 GEM |
| Camera | DMK21BF04 |
| Filters | Astronomik IR-pass filter 740nm (Atik filter wheel) |
| Date | Jan 10, 2006 |
| Location | Wildon/Austria |
| Sky Conditions | some fog, good seeing (5-6) temperature -5 C |
| Exposure | 2500 video frames at 1/50 sec |
| Processing |
Image aquisition in ICcapture, preprocessing in Registax, selection rate 25%; curves, unsharp mask in Photoshop; north is up; |