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NGC 172

From Wikipedia, the free encyclopedia
Barred spiral galaxy in the constellation Cetus
NGC 172
NGC 172 as seen onSDSS
Observation data (J2000epoch)
ConstellationCetus
Right ascension00h 37m 13.6s[1]
Declination−22° 35′ 13″[1]
Redshift0.010164[1]
Distance136Mly[2]
Apparent magnitude (V)15.09[1]
Characteristics
TypeSB(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 abarred spiral galaxy located around 136 million light-years away[2] in the constellationCetus.[1] It was discovered in 1886 by astronomerFrank Muller.[3]

See also

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References

[edit]
  1. ^abcdefgh"Results for NGC 0172".NASA/IPAC Extragalactic Database. Retrieved2016-09-02.
  2. ^abAn object's distance from Earth can be determined usingHubble'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 andv=Ho
  3. ^"New General Catalog Objects: 150 - 199".cseligman.com. Retrieved2018-02-13.

External links

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