NGC 7079
Galaxy in the constellation of Grus
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NGC 7079 is a barred lenticular galaxy[2] located about 110.58 million light-years away[3] in the constellation of Grus.[4][5] NGC 7079 is also classified as a LINER galaxy.[3][5] It is tilted about 51° to the Earth's line of sight.[2] NGC 7079 was discovered by astronomer John Herschel on September 6, 1834.[4]
| NGC 7079 | |
|---|---|
Barred lenticular galaxy NGC 7079. | |
| Observation data (J2000 epoch) | |
| Constellation | Grus |
| Right ascension | 21h 32m 35.2s[1] |
| Declination | −44° 04′ 03″[1] |
| Redshift | 0.00895[1] |
| Heliocentric radial velocity | 2,684 km/s[1] |
| Distance | 110.6 Mly |
| Apparent magnitude (V) | 11.6[1] |
| Characteristics | |
| Type | SB0^0(s), LINER[1] |
| Apparent size (V) | 2.1 x 1.3[1] |
| Other designations | |
| ESO 287-36, AM 2129-441, MCG -7-44-22, PGC 66934[1] | |
Physical characteristics
NGC 7079 has a faint cigar-shaped bar with ansae at the ends, and there is another very faint spiral structure surrounding it.[6][7] The rim of the disk also has a somewhat faint ring-like structure.[7]
Emission of doubly ionized oxygen gas
In NGC 7079, it has been indicated that there is a faint emission of doubly ionized oxygen. The ionized gas is rotating in the opposite direction of the stars in the galaxy. The counter-rotation has been attributed to the accretion of gas from outside of the galaxy.[2]
Group membership
NGC 7079 is a member of the NGC 7079 Group. The group, along with other nearby groups are part of the Pavo-Indus and Grus clouds of galaxies which form a connection between the Pavo–Indus and Virgo Superclusters. The other members of the NGC 7079 Group are NGC 7070, NGC 7070A, NGC 7097, NGC 7097A, ESO 287-37, ESO 287-39, ESO 287-41, and ESO 287-43.[8]