NGC 2371-2

Coordinates: Sky map 07h 25m 34.7s, +29° 29′ 25.6″
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NGC 2371
Emission nebula
Planetary nebula
NGC 2371-2
Observation data: J2000 epoch
Right ascension07h 25m 34.7s[1]
Declination+29° 29′ 25.6″[1]
Distance4400 ly ly
Apparent magnitude (V)13
Apparent dimensions (V)44
DesignationsNGC 2371,[1] NGC 2372[1]
See also: Lists of nebulae

NGC 2371-2 is a dual lobed planetary nebula located in the constellation Gemini. Visually, it appears like it could be two separate objects; therefore, two entries were given to the planetary nebula by John Louis Emil Dreyer in the New General Catalogue, so it may be referred to as NGC 2371, NGC 2372, or variations on this name.[1] It has also been called the double bubble nebula.[2]

The central star of the planetary nebula has a spectral type of [WO1], indicating a spectrum similar to that of an oxygen-rich Wolf–Rayet star.[3]


NGC 2371-2 is in the constellation of Gemini which is visible in the latitudes between +90° and −60°. The planetary nebula appears southwest of Castor, and is located at a distance of 4400 light years.

At 13th magnitude, this nebula is well within the limits of most amateur telescopes. Like most planetary nebulae, this one responds well to both high magnification and narrow-band filters, especially an OIII emission filter. It is listed within the RASC's 110 Finest NGC List.[4]


See also[edit]


  1. ^ a b c d e "NGC 2371". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2007-04-20.
  2. ^ O'Meara, Stephen James (2011). "36: Double Bubble Nebula NGC 2371-2". Deep-Sky Companions, Volume 4: The Secret Deep. Cambridge University Press. p. 161. ISBN 9781139500074.
  3. ^ González-Santamaría, I.; Manteiga, M.; Manchado, A.; Ulla, A.; Dafonte, C.; López Varela, P. (2021). "Planetary nebulae in Gaia EDR3: Central star identification, properties, and binarity". Astronomy & Astrophysics. 656: A51. arXiv:2109.12114. Bibcode:2021A&A...656A..51G. doi:10.1051/0004-6361/202141916. S2CID 237940344.
  4. ^ "Finest NGC Objects | the Royal Astronomical Society of Canada". Archived from the original on 29 November 2011. Retrieved 9 August 2022.
  5. ^ "The Death of a Star". Retrieved 19 August 2019.

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