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)
/Lookback Years
~04kpc13.0kly47 Tucanae
Coordinates:47 Tuc