| GR 8 | |
|---|---|
 True-color reproduction of the HST WFPC2 image of the dI galaxy GR 8. | |
| Observation data ( J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 58m 40.4s [1] |
| Declination | +14° 13′ 03″ [1] |
| Redshift | 214 ± 0 km/ s [1] |
| Distance | 7.9 Mly (2.4 Mpc) |
| Apparent magnitude (V) | 14.7 [1] |
| Characteristics | |
| Type | ImV [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 (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 or possibly the Virgo Cluster. [4]
GR 8 was discovered at the Lick Observatory using the 20-inch astrograph in either 1946, 1947, or 1951.
References
- ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for UGC 8091. Retrieved 2007-03-15.
-
^ 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. Vol. 192.
Astronomical Society of the Pacific. p. 218.
Bibcode:
1999IAUS..192..218T.
ISBN
1886733821.
{{ cite book}}:|journal=ignored ( help) -
^ Aparicio, A.; Tikhonov, N.; Karachentsev, I. (1999).
"Aparicio, Tikhonov, & Karachentsev, DDO 187".
arXiv:
astro-ph/9909493.
doi:
10.1086/301157.
S2CID
15309075. Retrieved 8 August 2021.
{{ cite journal}}: Cite journal requires|journal=( help) - ^ "GR 8". spider.seds.org. Retrieved 2023-04-30.
External links
| GR 8 | |
|---|---|
|
True-color reproduction of the HST WFPC2 image of the dI galaxy GR 8. | |
| Observation data ( J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 58m 40.4s [1] |
| Declination | +14° 13′ 03″ [1] |
| Redshift | 214 ± 0 km/ s [1] |
| Distance | 7.9 Mly (2.4 Mpc) |
| Apparent magnitude (V) | 14.7 [1] |
| Characteristics | |
| Type | ImV [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 (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 or possibly the Virgo Cluster. [4]
GR 8 was discovered at the Lick Observatory using the 20-inch astrograph in either 1946, 1947, or 1951.
References
- ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for UGC 8091. Retrieved 2007-03-15.
-
^ 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. Vol. 192.
Astronomical Society of the Pacific. p. 218.
Bibcode:
1999IAUS..192..218T.
ISBN
1886733821.
{{ cite book}}:|journal=ignored ( help) -
^ Aparicio, A.; Tikhonov, N.; Karachentsev, I. (1999).
"Aparicio, Tikhonov, & Karachentsev, DDO 187".
arXiv:
astro-ph/9909493.
doi:
10.1086/301157.
S2CID
15309075. Retrieved 8 August 2021.
{{ cite journal}}: Cite journal requires|journal=( help) - ^ "GR 8". spider.seds.org. Retrieved 2023-04-30.
External links
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