M103 (Open cluster)
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Also known as: NGC 581
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Right ascension: 1h 33m
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Declination: 60° 42'
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Constellation: Cassiopeia
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Date/time: 2008.02.19 20:00 UT
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Equipment: 12" f/5 Newtonian
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FoV: 27'
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Magnification and filter(s): 71x
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Seeing: 6/10
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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:
On a night with a near fullmoon, when planetary nebulaes and galaxies are an impossible mission, brighter open clusters such as the M103 are still sparkling vividly in the eyepiece. The OC that's 6' in diameter can be located near the Delta Cas, especially spectacular on low magnification. In its neighborhood one may find such other interesting clusters like the Trumpler 1, the NGC 663 or the NGC 659, all of which worth a look even from light-polluted places.
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Hi-resolution image: [ reversed sketch | original sketch ]
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