Beta Gruis [SEP] constellation
Beta Gruis
Beta Gruis (β Gruis, abbreviated Beta Gru, β Gru), formally named Tiaki , is the second brightest star in the southern constellation of Grus. It was once considered the rear star in the tail of the constellation of the (Southern) Fish, Piscis Austrinus: it, with Alpha, Delta, Theta, Iota, and Lambda Gruis, belonged to Piscis Austrinus in medieval Arabic astronomy.
Nomenclature.
"β Gruis" (Latinised to "Beta Gruis") is the star's
units (AU) (if placed in the Solar System it would extend to the orbit of Venus) located around 170 light-years from Earth. It is a variable star with a minimum magnitude of 2.3 and a maximum magnitude of 2.0. An imaginary line drawn from the Great Square of Pegasus through Fomalhaut will lead to Alnair and Beta Gruis.
Lying in the northwest corner of the constellation and marking the crane's eye is Gamma Gruis , a blue-white subgiant of spectral type B8III and magnitude 3.0 lying around