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

Data astronomica: "NGC 104" apud SIMBAD.

Saturnus

Haec stipula ad astronomiam spectat. Amplifica, si potes!