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ASTRO: Reflection nebulae in Monoceros
There are too many nebulae in this image to fit the title line. It includes IC 447,IC 447, IC446, NGC 2245 and NGC 2247.
This is the first of my La Palma images, even though it was taken in the last night. I had 10 out of 11 clear nights there, often with very good transparency but also bad seeing. One night was clear but there was a storm that made imaging impossible (I tried anyway but nothing worth showing came from that night). The 32% illuminated moon was not too far from this field, which brightened the sky very much. The same moon would have been hard to spot in Berlin. With the moon up the SQM-L reading rose to 20.6 from the usual 21.8. That's still almost two magnitudes less bright than a moonless night in Berlin. Seeing was bad so I reduced image size to Full HD (41%). I was testing an Explore Scientific ED127 APO that night that features the new FCD100 glass by Hoya. I liked that little scope so much that I bought one for myself, to be used as a light and compact travel scope (which only weighs in at 7.5 kilogram). Taken from "Athos" on La Palma with an ES127 FCD100 scope, ES 0.7 reducer and ASI1600MC OSC camera, AZ/EQ6 mount, 23x5 minutes. Stefan |
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