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NGC 4085 + NGC 4088 (Galaxy)
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Also known as: Arp 18
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Right ascension: 12h 06m
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Declination: 50° 28'
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Constellation: Ursa Major
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Date/time: 2014.05.23 23:30 UT
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Equipment: 12" f/5 Newtonian
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FoV: 35'
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Magnification and filter(s): 100x
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Seeing: 6/10
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Transparency: 4/5
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SQM: 21.08 m/as2
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Temperature: 13°C
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Humidity: low
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Wind: none
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Sight: 3 - definite details, interesting look
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Difficulty: 5 - almost invisible, total dark adaptation, very dark skies and averted vision is a must to see the object
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Position: 3 - moderate, some starhopping needed
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Description:
A very interesting interacting pair, also listed as nr. 18 in Halton Arp's famous catalogue of peculiar galaxies. Based on my map I expect a couple nearly equal in size and brightness, however this is not the case at all. I've even missed NGC 4085 for my first tries, while the larger NGC 4088 is brightly rules the FoV. I return to this object many times during the evening, because I'm so upset by not seeing NGC 4085, however when I first glimpse this object, it's etremely faint and tiny. The larger NGC 4088 does not display details, looks quite homogeneous, elliptical. I gave a score of 5 on the difficulty only because of the tricky appearance of NGC 4085.
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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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