ETA AQUILAE

'Eta Aquilae' (η Aql / η Aquilae) is a star in the constellation Aquila. It was also part of the former constellation Antinous. In addition, this star carries the seldom used Hebrew name 'Bezek' or '''Bazak''', meaning ''"lightning"''.
It is a Cepheid variable star, varying from apparent magnitude 3.6 to 4.4 with a period of 7.176641 days. Along with Delta Cephei, Zeta Geminorum and Beta Doradus, it is one of the most prominent naked eye Cepheids; that is, both the star itself and the variation in its brightness can be distinguished by the naked eye. Some other Cepheids such as Polaris are bright but have only a very small variation in brightness.
It is about 1200 light years from Earth. It is a yellow-white supergiant, and is about 3000 times more luminous than the Sun, with a diameter about 60 times that of the Sun.

Contents

Location

References

External links

Location

The star's location in the constellation of Aquila is shown in the following map:

References

★ HD 187929 -- Classical Cepheid (Delta Cep Type)

External links

★ Yale Bright Star Catalog; click on Aquila