NGC 1572
Galaxy in the constellation Caelum
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NGC 1572 is a large barred spiral galaxy in the constellation of Caelum. Its velocity with respect to the cosmic microwave background is 6,081±10 km/s, which corresponds to a Hubble distance of 292.5 ± 20.5 Mly (89.68 ± 6.28 Mpc).[1] However, six non-redshift measurements give a closer mean distance of 223.69 ± 9.42 Mly (68.583 ± 2.888 Mpc).[2] It was discovered by British astronomer John Herschel on 23 October 1835.[3][4]
Right ascension04h 22m 42.8080s[1]
Declination−40° 36′ 03.037″[1]
| NGC 1572 | |
|---|---|
NGC 1572 imaged by Legacy Surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Caelum |
| Right ascension | 04h 22m 42.8080s[1] |
| Declination | −40° 36′ 03.037″[1] |
| Redshift | 0.020384±0.0000330[1] |
| Heliocentric radial velocity | 6,111±10 km/s[1] |
| Distance | 223.69 ± 9.42 Mly (68.583 ± 2.888 Mpc)[1] |
| Apparent magnitude (V) | 13.26[1] |
| Characteristics | |
| Type | (R')SB(s)a[1] |
| Size | ~221,400 ly (67.89 kpc) (estimated)[1] |
| Apparent size (V) | 2.5′ × 1.2′[1] |
| Other designations | |
| ESO 303- G 014, IRAS 04210-4042, 2MASX J04224281-4036034, MCG -07-10-003, PGC 14993[1] | |
NGC 1572 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.[5][6]
