NGC 4833

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Globular cluster
data from NGC 4833
Image taken by NGC 4833 of the Hubble Space Telescope
Image taken by NGC 4833 of the Hubble Space Telescope
AladinLite
Constellation Fly
Position
equinox :  J2000.0 , epoch : J2000.0
Right ascension 12 h 59 m 34.9 s
declination -70 ° 52 ′ 28 ″
Appearance
Concentration class VIII
Brightness  (visual) 8.4 mag
Angular expansion 14 '
Color excess
E (BV) (redness) 		0.32 ± 0.03
Physical data
Affiliation Milky Way
Redshift (671 ± 4)  ·  10 −6
Radial velocity (+201.1 ± 1.3) km / s
distance approx. 19000  ly
(approx. 5700  pc )
Concentration lg (r t / r c ) 1.25
Metallicity [Fe / H] −1.83 ± 0.14
history
discovery NL de Lacaille
Discovery date 1751
Catalog names
 NGC  4833 • C 1256-706 •  GCl  21 •  Mel  115 •  Dun  164 •  GC  3325 • Lacaille I.4, Bennett 56, Caldwell 105, h 3444

NGC 4833 is the name of a globular cluster in the constellation Fly in the southern sky . It has an angular diameter of 13.5 arc minutes and is about 19,000  light years from the sun .

The object was discovered in 1751 by NL de Lacaille .

Web links

Individual evidence

  1. ↑ NASA / IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c SEDS : NGC 4833
  3. ↑ a b Melbourne et al .: "CCD Photometry of the Globular Cluster NGC 4833 and Extinction Near the Galactic Plane"; in: The Astronomical Journal, Vol. 120, Issue 6, pp. 3127ff. bibcode : 2000AJ .... 120.3127M
  4. ↑ SIMBAD database
  5. ↑ Seligman