Rukbat

Rukbat is a blue main-sequence star (spectral type B8V) about 180 light-years away. With an apparent magnitude of 3.97 it is easy to see with the naked eye under a dark sky.

The alpha star of Sagittarius – but far from the brightest.

Its light output is roughly 70 times that of the Sun (a rough estimate in visible light, calculated from brightness and distance).

It is never visible from Germany, as it lies too far south.