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Mu UMa (TVICS)
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Also known as: Mu Ursae Majoris, Tania Australis
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Right ascension: 10h 23m
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Declination: 41° 26'
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Constellation: Ursa Major
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Date/time: 2014.05.23 21:00 UT
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Equipment: 12" f/5 Newtonian
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FoV: 12'
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Magnification and filter(s): 250x
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Seeing: 7/10
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Transparency: 3/5
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SQM: 21.14 m/as2
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Temperature: 14°C
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Humidity: low
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Wind: none
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Sight: 4 - lots of details, very interesting, unique 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: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Description:
Interesting, but Mu UMa was in front of me all these years, yet I've never noticed its fantastic colour. It responds to changing magnifications in a very interesting way, and this seem to support my theory that you can see stellar colours much easier with a non-dark adapted eye: with naked eye it's orange, at 71x it is golden, and at 250x it's white. The sketch displays the hue at 71x.
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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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