Gienah

Gienah, also known as Gamma Corvi (γ Corvi), is the brightest star in the constellation Corvus (the Crow). It is a giant star of spectral type B8III, meaning it is a hot, blue-white star that has exhausted the hydrogen in its core and has begun to evolve away from the main sequence.

Located approximately 165 light-years from Earth, Gienah has a luminosity around 850 times that of the Sun and a radius roughly 5.5 times solar. Its surface temperature is around 12,400 Kelvin, giving it its characteristic blue-white color.

The name "Gienah" is derived from the Arabic al-janāħ, meaning "the wing" (of the crow). It is sometimes referred to as Gienah Corvi to distinguish it from Epsilon Cygni, which is also occasionally called Gienah.

Gienah's relatively rapid rotation, at around 135 km/s, results in it being slightly oblate, flattened at its poles and bulging at its equator. Its mass is estimated to be around 4.2 times that of the Sun.

While Gienah is a relatively bright star visible to the naked eye, no planets have been detected orbiting it to date. As a relatively young star, estimated to be around 130 million years old, it is still evolving and will eventually become a red giant.