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61 Cygni (Binary star)
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Also known as: 61 Cyg, Piazzi's Flying Star
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Right ascension: 21h 7m
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Declination: 38° 48'
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Constellation: Cygnus
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Date/time: 2012.08.19 20:30 UT
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Equipment: 4.5" f/8 Newtonian
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FoV: 14'
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Magnification and filter(s): 150x
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Seeing: 7/10
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Transparency: 4/5
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SQM: 21.37 m/as2
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Temperature: 16°C
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Humidity: dry
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Wind: none
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Sight: 3 - definite details, interesting look
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Difficulty: 1 - instantly visible, no dark adaptation or averted vision needed
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Position: 1 - very easy, many bright stars nearby
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Location: Lipótfa, Zselic, Hungary
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Observer: Ferenc Lovró
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Description:
Spectacular yellow binary star, makes a nice couple especially at low magnification. The fainter companion is a little bit bluish. The primary aim for this sketch is to observe this star once every year from now on on the approximately same day in order to display how this star drifts through space compared to the other field stars - this is one of the fastest apparently moving star with about 5" per year.
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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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