Deep Sky Object in Winter
Seagull Nebula (IC2177 in Monoceros)

Date & Time: Nov 14 2009, from 24:59 to 27:03 JST(+0900)
Mosaic of 4 flames of 10min.×3shots
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with TAKAHASHI JP Equatorial & Meade Pictor 201XT
Digital Camera: Nikon D50 (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3008×2000)
CCD Sensitivity...ISO800

IC2177 / Diffused Nebula, type 1 E
R.A.07h 05m 6.0s (2000.0)
Dec.-10° 42' 00" (2000.0)
Apparent Size85×25'
Real Size45×13 light yrs.
Magnitude -
Distance1820 light yrs.
Other IDsSh2-296, LBN1027
IC2177 is a huge diffused nebula spread around 7 degrees north-east of Sirius, The shape has given a nickname of "The Seagull Nebula". Unfortunately, this nebula hardly be seen with naked eyes same as many other diffused nebulae. The nebula has a length of 2 degrees in north-south direction, only normal photo lenses can detect the shape of seagull clearly.
The catalogue number of IC2177 occupies only area of seagull's wings, and a head is named vdB93. These gigantic hydrogen clouds are floating about 1800 light-years away. And you can see a dimmed nebula of LBN1036 about 2 degrees east.

To Monochrome reversed image(124KB)

Deepsky objects around IC2177 Nebulae & Star clusters around Seagull Nebula

Italic indicates #'s of open clusters



Copyright(c) 2009 by Naoyuki Kurita, All rights reserved.
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