Astrophysics (index)about

47 Tucanae

(47 Tuc, NGC 104)
(bright globular cluster)

47 Tucane (47 Tuc or NGC 104) is the second brightest Globular Cluster in the sky, covering a region of the Celestial Sphere approximately the size of the Sun or Moon, with an age of 13 gigayears and a low Metallicity. It shows hints of more than one population. It has more than a million stars and has a very dense core. Its radius is about 60 ly.

It is an obvious example for the study of globular clusters and is the subject of searches for a central Black Hole and for Extra-Solar Planets.


(globular cluster)
http://en.wikipedia.org/wiki/47_Tucanae
RedshiftParsecs
/Distance
Lightyears
/Lookback Years
  
~04kpc13.0kly47 Tucanae
Coordinates:47 Tuc
J002405.67-270452.6

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