M50 (Open cluster)
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Also known as: NGC 2323
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Right ascension: 7h 3m
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Declination: -8° 20'
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Constellation: Monoceros
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Date/time: 2008.02.12 20:15 UT
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Equipment: 12" f/5 Newtonian
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FoV: 22'
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Magnification and filter(s): 71x
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Seeing: 7/10
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Transparency: 3/5
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Description:
This rarely mentioned Messier object looks like a diffuse, large spot even through the finderscope. On a low/moderate magnification a view of solid, dense open cluster appears in front of our eyes. A very nice member of the cluster can be found around 9' north from the middle of the cluster: a red giant of a color-index of 1.7, catalogued as HD 52938. With its 7.82 magnitude luminosity its also the brightest star of the cluster. Interestingly, because of its shiny red colour, I wouldn't think that this star is nearly 2 magnitudes brighter than the other stars in the centre of the cluster, which look like they're the brightest by far.
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Hi-resolution image: [ reversed sketch | original sketch ]
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This sketch was featured on Astronomy Sketch of the Day on Jan 14, 2009.
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