NGC 1125
Galaxy in the constellation Eridanus
From Wikipedia, the free encyclopedia
NGC 1125 is a barred spiral galaxy in the constellation of Eridanus. Its velocity with respect to the cosmic microwave background is 3,087±14 km/s, which corresponds to a Hubble distance of 148.5 ± 10.4 Mly (45.53 ± 3.20 Mpc).[1] It was discovered by German-British astronomer William Herschel on 6 October 1785.[2][3]
| NGC 1125 | |
|---|---|
NGC 1125 imaged by Pan-STARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Eridanus |
| Right ascension | 02h 51m 40.4544s[1] |
| Declination | −16° 39′ 02.304″[1] |
| Redshift | 0.010931±0.000017[1] |
| Heliocentric radial velocity | 3,277±5 km/s[1] |
| Distance | 148.5 ± 10.4 Mly (45.53 ± 3.20 Mpc)[1] |
| Apparent magnitude (V) | 13.43[1] |
| Characteristics | |
| Type | (R')SB0/a?(r)[1] |
| Size | ~126,000 ly (38.64 kpc) (estimated)[1] |
| Apparent size (V) | 1.8′ × 0.9′[1] |
| Other designations | |
| IRAS 02493-1651, MCG -03-08-035, PGC 10851[1] | |
NGC 1125 is a Seyfert II 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] The strongest emission from ionized and molecular gas is seen about 300 parsecs away from the galaxy’s center.[5]
NGC 1125 appears close to neighboring galaxy MCG -03-08-034, but the alignment is optical, as the neighbor is about 3 times farther away (437.9 ± 30.7 Mly).[6]
