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GR 8 (also known as UGC 8091) is a gas-rich dwarf irregular galaxy.[2] In 1995, Tolstoy et al. estimated its distance (with the Hipparcos correction of 1997 applied) to be approximately 7.9 million light-years (5.0×1011 AU) from Earth. It is around 2.8 Mly from UGC 9128.[3] It is still an open question whether it is a member of the Local Group.

GR 8
True-color reproduction of the HST WFPC2 image of the dI galaxy GR 8.
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension12h 58m 40.4s[1]
Declination+14° 13′ 03″[1]
Redshift214 ± 0 km/s[1]
Distance7.9 Mly (2.4 Mpc)
Apparent magnitude (V)14.7[1]
Characteristics
TypeImV[1]
Apparent size (V)1′.1 × 1′.0[1]
Other designations
PGC 44491,[1] DDO 155,[1] GR 8,[1] Imprint of a Foot[1]

GR 8 was discovered at the Lick Observatory using the 20-inch astrograph in either 1946, 1947, or 1951.


References


  1. "NASA/IPAC Extragalactic Database". Results for UGC 8091. Retrieved 2007-03-15.
  2. Tolstoy, Eline (1999). "Detailed Star-Formation Histories of Nearby Dwarf Irregular Galaxies using HST". In Patricia Whitelock; Russell Cannon (eds.). The stellar content of Local Group galaxies, Proceedings of the 192nd symposium of the International Astronomical Union. The Stellar Content of Local Group Galaxies. Vol. 192. Astronomical Society of the Pacific. p. 218. Bibcode:1999IAUS..192..218T. ISBN 1886733821.
  3. "Aparicio, Tikhonov, & Karachentsev, DDO 187". doi:10.1086/301157. S2CID 15309075. Retrieved 8 August 2021. {{cite journal}}: Cite journal requires |journal= (help)




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