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The constellations Grus, Pavo, Phoenix and Tucana are collectively known as the "Southern Birds". The constellation's brightest star, Alpha Gruis, is also known as Alnair and appears as a 1.7-magnitude blue-white star. Beta Gruis is a red giant variable star with a minimum magnitude of 2.3 and a maximum magnitude of 2.0.
Alpha Gruis is the brightest star in the southern constellation of Grus. It is officially named Alnair; [1] Alpha Gruis is the star's Bayer designation, which is Latinized from α Gruis and abbreviated α Gru. With an magnitude of 1.74, it is one of the brightest stars in the sky and one of the fifty-eight stars selected for celestial navigation.
This is the list of notable stars in the constellation Grus, sorted by decreasing brightness. Name B Var HD HIP RA Dec vis. mag. abs. mag. Dist. Sp. class Notes α Gru:
Zeta Gruis, Latinised from ζ Gruis, is a solitary [7] star in the southern constellation of Grus. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.12. [2] Based upon an annual parallax shift of 24.5 mas as seen from the Earth, [1] the system is located about 133 light-years from the Sun.
Beta Gruis (β Gruis, abbreviated Beta Gru, β Gru), formally named Tiaki / t i ˈ ɑː k i /, [13] 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.
ε Gruis, Latinised as Epsilon Gruis, is a blue-white hued star in the southern constellation of Grus. It is visible to the naked eye, having an apparent visual magnitude of 3.5. [2] Based upon an annual parallax shift of 25.30 mas as measured from Earth, [1] it is located around 129 light years from the Sun.
Theta Gruis, Latinized from θ Gruis, is a triple star [3] system in the southern constellation of Grus. Its combined apparent visual magnitude is 4.28, [2] which is bright enough to be seen with the naked eye. The system contains a magnetic Delta Delphini-like [9] F5 star with a close fainter companion, plus a more distant G2 main sequence ...
Lambda Gruis, Latinized from λ Gruis, is a solitary, [8] orange-hued star in the southern constellation of Grus. With an apparent visual magnitude of 4.47, [2] it is visible to the naked eye as a faint point of light. The distance to this star, as determined using an annual parallax shift of 13.47 mas as seen from the Earth, [1] is around 242 ...