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Cassiopeia
Cassiopeia has long been one of the best recognized constellations and is easily seen in the northern sky circling the north celestial pole well ahead of the Big Dipper in Ursa Major. The bright and constellation stars were made more prominent with a diffusion filter on a separate image that was stacked with 2 other shots. A small red emission nebula NGC281 is just viewable in this field of view towards the bottom center. |
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| Optics | Camera | Film | Exposure | Mount/Guiding | Scanning | Processing | Location | Date |
| 105mm f2.8 @ f4 | Nikon F | PPF 400 | 3 x 10 min; last with diffusion filter | G11 piggybacked on 10" SCT; unguided | Minolta Scan Dual II | Levels/Curves/linear gradient in PS7; Stacked in Registar; Grain reduction in Neat Image | Inyokern, CA | 1/24/04 |
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Comments: Poor seeing. Some thin high clouds coming and going. May account for rings on bright stars with diffusion filtered shot. |
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