Alnitak, accuracy NGC 2023, NGC 2024 and Horse Head Nebula Image taken on 10/12/2010 Alnitak (Zeta

The Cluster Manger (Latin Praesepe, manger) - also known as the Beehive accuracy Cluster or the abbreviations catalog of M 44 or NGC 2632 - is a bright open cluster visible in the constellation of Cancer. It is one of the closest to the solar system and contains a rich population of stars, larger than those of other open clusters neighbors. In a clear sky the cluster appears accuracy to the naked eye as a nebulous object; defined by Ptolemy "the nebulous mass in breast cancer," was the first object accuracy that Galileo observed with his telescope. Its components are brighter than magnitude 6 and 7 and are perfectly visible with binoculars accuracy even from urban centers. The age and proper motion are comparable to those of the Hyades, suggesting that both clusters have a common origin; both the Nativity is the Hyades also contain red giants and white dwarfs, which represent the last stages of stellar evolution, plus a large number of main sequence stars of class A, F, G, K and M.
Telescope 102ED F7 with homemade flattener dell'ED80 mount on Sky Watcher Pro NEQ6 at a fixed location, accuracy guide scope SkyWatcher ED 80, CCD QHY8L with IDAS LPS P2 filter, double guide MagZero MZ5m guided and managed by PHD Dithermaster. 23 x 600/2 bin 1 for three and a half hours of recovery from the driveway ... 20 dark, 20 flat and 20 bias: individual images were calibrated with MaximDL and then processed with PhotoShop CS
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Alnitak, accuracy NGC 2023, NGC 2024 and Horse Head Nebula Image taken on 10/12/2010 Alnitak (Zeta Orionis / ζ Orionis / ζ Ori) is one of three s ...