47 Tucanae
47 Tucanae, alias NGC 104 et Caldwell 106, est cumulus stellarum globosus in constellatione Tucana.  

Haec res iam anno 1603 inter stellas charactere "ξ Tucanae" ab Ioanne Bayero numeratus est. Nicolaus Ludovicus de Lacaille anno 1751 nucleum cometae esse censuit.

Bibliographia 
 Arash Bahramian et al., "The ultracompact nature of the black hole candidate X-ray binary 47 Tuc X9" in Monthly Notices of the Royal Astronomical Society vol. 467 (2017) pp. 2199-2216
 Bülent Kızıltan, Holger Baumgardt, Abraham Loeb, "An intermediate-mass black hole in the centre of the globular cluster 47 Tucanae" in ArXiv pro Nature vol. 542 (2017) pp. 203–205
 Liliana Rivera Sandoval et al., "New Cataclysmic Variables and other Exotic Binaries in the Globular Cluster 47 Tucanae" in ArXiv (2017) pro Monthly Notices of the Royal Astronomical Society

Nexus externi 

 SEDS
 47 Tuc apud Galactic Globular Clusters Database
 NGC 104

Greges stellarum
Tucana (constellatio)
Res astronomicae nominibus Flamsteed agnitae