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NGC 6940 (Open cluster)
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Right ascension: 20h 34m
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Declination: 28° 30'
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Constellation: Vulpecula
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Date/time: 2014.10.20 20:00 UT
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Equipment: 12" f/5 Newtonian
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FoV: 1° 7'
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Magnification and filter(s): 50x
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Seeing: 3/10
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Transparency: 2/5
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SQM: 21.22 m/as2
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Temperature: 11°C
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Humidity: high
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Wind: gusts
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Sight: 3 - definite details, interesting look
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Difficulty: 2 - easily visible, some dark adaptation needed, averted vision might add to details
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Position: 2 - easy, bright star nearby
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Description:
Although the giant open cluster, NGC 6940 is mostly made of faint stars, it is shown by the finderscope because it's accumulated brightness is so high. Even its brightest members are fairly faint, but the majority of its stars are on the edge of direct vision. Spectacular object, moderately well separated from its environment.
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Hi-resolution image: [ reversed sketch | original sketch ]
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gmail*com.
ikonra kattintva magyarul is olvashatod az észlelést.
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