NGC 104
globular cluster
47 Tucanae, also designated as NGC 104, Caldwell 106 or simply 47 Tuc, is a globular cluster located in the constellation Tucana. It is about 4.45 ± 0.01 kpc (14,500 ± 32.6 ly) from Earth, and 120 light years in diameter. 47 Tuc can be seen with the naked eye, with an apparent magnitude of 4.1. It appears about 44 arcminutes across including its far outreaches. Due to its far southern location, 18° from the south celestial pole, it was not catalogued by European astronomers until the 1750s,…
Papers about it
- The mass functions of multiple stellar populations in 47 Tucanae
- JWST observations of 47 Tucanae: I. The low-mass main sequence down to the hydrogen-burning limit
- Euclid: The convective-transition gap of 47 Tuc
- Globular Clusters in the Time of the JWST. I. Survey Design and First Results on Multiple Populations and Beyond