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Frosty Leo (Planetary nebula)
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Also known as: IRAS 09371+1212
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Right ascension: 9h 41m
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Declination: 11° 55'
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Constellation: Leo
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Date/time: 2013.03.07 21:15 UT
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Equipment: 12" f/5 Newtonian
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FoV: 7'
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Magnification and filter(s): 469x
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Seeing: 5/10
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Transparency: 3/5
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SQM: 21.16 m/as2
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Temperature: 7°C
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Humidity: low
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Wind: breeze
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Sight: 2 - minor details, somewhat interesting
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Difficulty: 4 - hardly visible, dark adaptation and very dark skies needed, averted vision is required to see details
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Position: 2 - easy, bright star nearby
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Location: Nádasdladány, Hungary
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Observer: Ferenc Lovró
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Description:
A rarely observed protoplanetary nebula I've first read about in Cloudy Night's Sketching forum. It's as small as expected, but much fainter. Elongated to the N-S, with a clearly visible dark band divinding the nebula to to halves, when the seeing gets better for a few moments. Reminds me of a faint little nearly edge-on galaxy. I haven't checked photos of this object before my observation, so I'm quite surprised now that I've seen the dark band, because even on a sketch made with 600mm scope it does not show up. But I know that my eye did not lie. A highly recommended gem.
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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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