NGC_940 Knowpia

NGC 940
NGC 940
	SDSS image of NGC 940
Observation data (J2000 epoch)
Constellation	Triangulum
Right ascension	02h 29m 27.51472s
Declination	+31° 38′ 27.5640″
Redshift	0.017172
Heliocentric radial velocity	5104 km/s
Distance	221.6 Mly (67.93 Mpc)
Apparent magnitude (B)	13.4
Characteristics
Type	S0
Other designations
	UGC 1964, MCG +05-06-050, PGC 9478

NGC 940 is a lenticular galaxy in the constellation Triangulum. It is estimated to be 222 million light-years from the Milky Way^[3] and has a diameter of approximately 80,000 ly. NGC 940 was discovered by Heinrich d'Arrest.^[4]^[5]^[6]

One supernova, SN 2021vtl (type Ia, mag. 17.3), was discovered in NGC 940 on 11 August, 2021.^[7]

References edit

^ ^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 940". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-30.
^ ^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.
^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2020-03-21.
^ "Revised NGC Data for NGC 940". spider.seds.org. Retrieved 2020-03-21.
^ Ford, Dominic. "The galaxy NGC 940 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-21.
^ Transient Name Server entry for SN 2021vtl. Retrieved 24 March 2023.