NGC 6970
Galaxy in the constellation Indus
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NGC 6970 is a barred spiral galaxy in the constellation of Indus. Its velocity with respect to the cosmic microwave background is 5,089±29 km/s, which corresponds to a Hubble distance of 244.8 ± 17.2 Mly (75.06 ± 5.28 Mpc).[1] However, four non-redshift measurements give a much closer mean distance of 168.70 ± 16.58 Mly (51.725 ± 5.082 Mpc).[2] It was discovered by British astronomer John Herschel on 2 October 1834.[3]
Right ascension20h 52m 09.4808s[1]
Declination−48° 46′ 40.019″[1]
| NGC 6970 | |
|---|---|
NGC 6970 (below center) with LEDA 129695 (above center) imaged by Legacy Surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Indus |
| Right ascension | 20h 52m 09.4808s[1] |
| Declination | −48° 46′ 40.019″[1] |
| Redshift | 0.017525±0.0000870[1] |
| Heliocentric radial velocity | 5,254±26 km/s[1] |
| Distance | 168.70 ± 16.58 Mly (51.725 ± 5.082 Mpc)[1] |
| Group or cluster | NGC 7038 group (LGG 441) |
| Apparent magnitude (V) | 13.16[1] |
| Characteristics | |
| Type | SB(rs)ab pec[1] |
| Size | ~82,700 ly (25.37 kpc) (estimated)[1] |
| Apparent size (V) | 1.4′ × 0.9′[1] |
| Other designations | |
| ESO 235- G 008, IRAS 20486-4857, 2MASX J20520946-4846398, PGC 65608[1] | |
NGC 6970 is a Seyfert I galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4][5]
