Asteria — interactive night sky map
47 Tucanae (NGC 104) is a globular cluster in the constellation Tucana with an apparent magnitude of 4.1, spanning about 32 arcminutes. Under dark skies it can be spotted with the naked eye.
It is best placed in the evening sky around September. It is visible from the whole southern hemisphere and from northern latitudes up to about 18°N. It is circumpolar (never sets) south of latitude 18°S.