Coordinates: (209.03°, -19.48°)
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1. ^ Sharpless, Stewart (1959). "A Catalogue of H II Regions.", The Astrophysical Journal Supplement Series, Vol. 4, 257. [1959ApJS....4..257S]
2. ^ Menten, K. M., Reid, M. J., Forbrich, J., et al. (2007). "The distance to the Orion Nebula", Astronomy and Astrophysics, Vol. 474, 515-520. [2007A&A...474..515M]