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NGC 804

From Wikipedia, the free encyclopedia

Lenticular galaxy in the constellation Triangulum

NGC 804
SDSS image of NGC 804
Observation data (J2000 epoch)
Constellation	Triangulum
Right ascension	02^h 04^m 02.106^s^[1]
Declination	+30° 49′ 58.13″^[1]
Redshift	0.017639^[2]
Heliocentric radial velocity	5241 km/s^[2]
Distance	231.3 Mly (70.92 Mpc)^[3]
Apparent magnitude (B)	14.7^[2]
Characteristics
Type	S0^[2]
Other designations
IC 1773,UGC 1557,MCG +05-05-049,PGC 7873^[2]

NGC 804 is alenticular galaxy located in theTriangulum constellation about 231 millionlight-years^[3] from theMilky Way. It was discovered by the American astronomerLewis Swift in 1885. This galaxy was also observed by the Frenchastronomer Guillaume Bigourdan on December 24, 1897, and it has been added to theIndex Catalogue under the symbolIC 1773.^[4]^[5]^[6]

^^a ^bSkrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006)."The Two Micron All Sky Survey (2MASS)".The Astronomical Journal.131 (2):1163–1183.Bibcode:2006AJ....131.1163S.doi:10.1086/498708.ISSN 0004-6256.S2CID 18913331.
^^a ^b ^c ^d ^e"NGC 804".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved2020-05-24.
^^a ^bCrook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey".The Astrophysical Journal.655 (2):790–813.arXiv:astro-ph/0610732.Bibcode:2007ApJ...655..790C.doi:10.1086/510201.S2CID 11672751.
^"Your NED Search Results".ned.ipac.caltech.edu. Retrieved2020-03-24.
^"Revised NGC Data for NGC 804".spider.seds.org. Retrieved2020-03-24.
^Ford, Dominic."The galaxy NGC 804 - In-The-Sky.org".in-the-sky.org. Retrieved2020-03-24.

Bayer	α (Mothallah) β γ δ ε ι
Flamsteed	1 5 7 10 11 12 13 14 15
Variable	R V X RW XX
HR	490 523 564
HD	9446 13189
Other	B324 HAT-P-38 (Horna) LSPM J0207+3331 M33-013406.63 M33 X-7 Romano's Star Ross 19 Var 83

Exoplanets	HAT-P-38b (Hiisi) HD 9446 b c HD 13189 b

Nebulae	588 595 604