NGC 1851

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Globular cluster
NGC 1851
Photo from the Hubble Space Telescope
Photo from the Hubble Space Telescope
AladinLite
Constellation Dove
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 05 h 14 m 06.7 s
declination -40 ° 02 ′ 48 ″
Appearance
Brightness  (visual) 7.1 likes
Angular expansion 12 '
Physical data
Affiliation Milky Way
( Canis Major Dwarf Galaxy )
Integrated spectral type F7 
Redshift +0.001071 ± 0.000003
Radial velocity +320.9 ± 1.0 km / s
distance about 12,000  pc 
Absolute brightness V-band: −8.3 mag
history
discovery James Dunlop
Discovery date May 10, 1826
Catalog names
 NGC  1851 • C 0512-400 •  GCl  9 •  ESO  305-SC16 •  Dun  508 •  GC  1061 • h 2777

NGC 1851 is the name of a globular cluster in the constellation Columba . NGC  1851 is 12 arc minutes in diameter . This cluster, which is only visible from southern Europe or more southern latitudes, is one of the few globular clusters in the winter sky. This fact became even more explosive with the discovery of the Canis Major dwarf galaxy in 2003 . Just like Messier 79 and NGC 2808 , this star cluster does not seem to have its origin in the Milky Way system, but was captured along with that dwarf galaxy.

The object was discovered in 1826 by the Scottish astronomer James Dunlop .

Web links

swell

  1. ↑ NASA / IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b SEDS : NGC 1851
  3. ↑ a b SIMBAD database
  4. ^ SEDS
  5. ↑ Seligman