M46 (Open cluster)
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Right ascension: 7h 42m
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Declination: -1° 51'
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Constellation: Puppis
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Date/time: 2013.03.02 20:00 UT
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Equipment: 4.5" f/8 Newtonian
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FoV: 1° 2'
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Magnification and filter(s): 60x
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Seeing: 6/10
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Transparency: 4/5
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SQM: 21.36 m/as2
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Temperature: -8°C
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Humidity: low
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Wind: none
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Sight: 3 - definite details, interesting look
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Difficulty: 4 - hardly visible, dark adaptation and very dark skies needed, averted vision is required to see details
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Position: 3 - moderate, some starhopping needed
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Location: Lipótfa, Zselic, Hungary
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Observer: Ferenc Lovró
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Description:
This open cluster is made of plenty of faint stars. Many visible with direct vision, but the majority of even fainter stars are visible only with averted vision. It separates well from its background, but it's definitely not an easy object just next to the much brighter M47.
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Hi-resolution image: [ reversed sketch | original sketch ]
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