NGC 172

NGC 172 is a 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]

NGC 172
NGC 172 as seen on SDSS
Observation data (J2000 epoch)
Constellation	Cetus
Right ascension	00^h 37^m 13.6^s[1]
Declination	−22° 35′ 13″[1]
Redshift	0.010164[1]
Distance	136 Mly[2]
Apparent magnitude (V)	15.09[1]
Characteristics
Type	G[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]

See also

• List of NGC objects (1–1000)

References

1. "NASA/IPAC Extragalactic Database". Results for NGC 0172. Retrieved 2016-09-02.
2. An object's distance from Earth can be determined using Hubble's law: v=H_o 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=H_o
3. "New General Catalog Objects: 150 - 199". cseligman.com. Retrieved 2018-02-13.

External links

• Media related to NGC 172 at Wikimedia Commons
• NGC 172 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images