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NGC 91

Summary

NGC 91 (PGC 3325956, GC 41, GC 5097, or NPD 68 22.9) is a star with an apparent magnitude of 14.4 in the constellation of Andromeda. The star is southwest of the galaxy NGC 90. Discovered in 1866 by Herman Schultz, there have been many arguments if this star exists or not. However, people have observed the star, and have confirmed that NGC 91 exists.[2]

NGC 91
Location of NGC 91 (circled, south is up)
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 21m 51.633s[1]
Declination +22° 22′ 05.52″[1]
Apparent magnitude (V) 14.4[2]
Astrometry
Parallax (π)0.4985 ± 0.0399 mas[3]
Distance6,500 ± 500 ly
(2,000 ± 200 pc)
Other designations
2MASS J00215163+2222055[4]
Database references
SIMBADdata

References edit

  1. ^ a b Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
  2. ^ a b Seligman, Courtney. "Celestial Atlas NGC Objects: NGC 91". Celestial Atlas. Retrieved 23 May 2015.
  3. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  4. ^ "2MASS J00215163+2222055". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 14 May 2017.

External links edit

  •   Media related to NGC 91 at Wikimedia Commons