| NGC 172 | |
|---|---|
 NGC 172 as seen on SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 00h 37m 13.6s[1] |
| Declination | −22° 35′ 13″[1] |
| Redshift | 0.010164[1] |
| Distance | 136 Mly[2] |
| Apparent magnitude (V) | 15.09[1] |
| Characteristics | |
| Type | SB(r)bc?[1] |
| Apparent size (V) | 2.0' × 0.3'[1] |
| Other designations | |
| ESO 474- G 005, MCG -04-02-027, 2MASX J00371359-2235132, 2MASXi J0037135-223513, IRAS 00348-2251, IRAS F00347-2012, ESO-LV 4740050, 6dF J0037136-223513, PGC 2228.[1] | |
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NGC 172 is a barred spiral galaxy located around 136 million light-years away[2] in the constellation Cetus.[1] It was discovered in 1886 by astronomer Frank Muller.[3]
- ^ a b c d e f g h "Results for NGC 0172". NASA/IPAC Extragalactic Database. Retrieved 2016-09-02.
- ^ a b An object's distance from Earth can be determined using Hubble's law: v=Ho is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=Ho
- ^ "New General Catalog Objects: 150 - 199". cseligman.com. Retrieved 2018-02-13.