NGC 822 - Wiki slovník

NGC 822
NGC 822
	DSS image of NGC 822
Observation data (J2000 epoch)
Constellation	Phoenix
Right ascension	02h 06m 39.13396s
Declination	−41° 09′ 24.2724″
Redshift	0.017856
Heliocentric radial velocity	5305 km/s
Distance	233.3 Mly (71.52 Mpc)
Apparent magnitude (B)	14.25
Characteristics
Type	E
Other designations
	MCG -07-05-008, PGC 8055

NGC 822 is an elliptical galaxy in the constellation Phoenix. It is estimated to be about 233 million light-years from the Milky Way^[3] and has a diameter of approximately 80,000 light-years. NGC 822 was discovered on September 5, 1834, by astronomer John Herschel.^[4]^[5]^[6]

References

^ ^a ^b 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.
^ ^a ^b ^c ^d ^e "NGC 822". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-24.
^ ^a ^b Crook, 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.
^ Ford, Dominic. "The galaxy NGC 822 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-28.
^ "Revised NGC Data for NGC 822". spider.seds.org. Retrieved 2020-03-28.
^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-03-28.

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