NGC 222

Coordinates: Sky map 00h 40m 43.7s, -73° 23′ 08″
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NGC 222
Observation data (J2000 epoch)
Right ascension00h 40m 43.7s[1]
Declination−73° 23′ 08″[1]
Distance210000[2]
Apparent magnitude (V)12.64[3]
Apparent dimensions (V)1.2' x 1.2'[3]
Physical characteristics
Other designationsESO 029-SC 004.[1]
Associations
See also: Open cluster, List of open clusters

NGC 222 is an open cluster located approximately 210,000 light-years from the Sun[2] in the Small Magellanic Cloud. It is located in the constellation Tucana. It was discovered on August 1, 1826 by James Dunlop.[4]

See also

External links

References

  1. ^ a b c "NASA/IPAC Extragalactic Database". Results for NGC 0222. Retrieved 2016-09-02.
  2. ^ a b An object's distance from Earth can be determinded 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
  3. ^ a b "NGC 222". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 31 December 2016.
  4. ^ "New General Catalog Objects: NGC 200 - 249". Cseligman. Retrieved September 10, 2016.
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