IC 2177

IC 2177
Emission nebula
H II region
Detailed view of IC 2177 produced by the Wide Field Imager on the MPG/ESO 2.2-metre telescope.[1]
Observation data: J2000 epoch
Right ascension07h 04m 25s[2]
Declination−10° 27′ 18″[2]
Distance3650[3] ly   (1,120 pc)
Apparent magnitude (V)15.23[4]
ConstellationMonoceros
DesignationsGUM 1, IC 2177, Sh2-292[2]
See also: Lists of nebulae
The location of IC 2177 (circled in red)

IC 2177 is a region of nebulosity that lies along the border between the constellations Monoceros and Canis Major. It is a roughly circular H II region centered on the Be star HD 53367.[5] This nebula was discovered by Welsh amateur astronomer Isaac Roberts and was described by him as "pretty bright, extremely large, irregularly round, very diffuse."[6]

The name Seagull Nebula is sometimes applied by amateur astronomers to this emission region, although it more properly includes the neighboring regions of star clusters, dust clouds and reflection nebulae. This latter region includes the open clusters NGC 2335 and NGC 2343.[7]

IC 2177 is also known as the Seagull's Head, due to its larger presence in the Seagull nebula.

  1. ^ "The Rich Colours of a Cosmic Seagull". ESO Press Release. Retrieved 27 September 2012.
  2. ^ a b c Cite error: The named reference simbad was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference basi34_2_111 was invoked but never defined (see the help page).
  4. ^ "NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2018-12-29.
  5. ^ Cite error: The named reference gregorio_hetem2008 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference omeara2007 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference monks2010 was invoked but never defined (see the help page).