η Cas (Binary star)
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Also known as: Eta Cassiopeiae
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Right ascension: 0h 50m
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Declination: 57° 53'
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Constellation: Cassiopeia
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Date/time: 2010.10.13 00:45 UT
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Equipment: 12" f/5 Newtonian
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FoV: 9'
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Magnification and filter(s): 300x
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Seeing: 5/10
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Transparency: 3/5
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SQM: 21.19 m/as2
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Temperature: -1°C
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Description:
Component B is yellowish while the fairly brighter component A is white. PA values: AB=319°, AC=123°.
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Hi-resolution image: [ reversed sketch | original sketch ]
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