NGC 172

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]

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]

See also

• List of NGC objects (1–1000)

References

1. "Results for NGC 0172". NASA/IPAC Extragalactic Database. 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