Eta Andromedae
Constellation, Binary star, Star, Andromeda (constellation), Stellar classification, Subgiant, Giant star
(Sprache: Englisch)
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Eta Andromedae is a spectroscopic binary star in the constellation of Andromeda. It consists of two G-type subgiant or giant...
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Eta Andromedae is a spectroscopic binary star in the constellation of Andromeda. It consists of two G-type subgiant or giant stars orbiting each other with a period of 115.7 days and has an overall apparent visual magnitude of approximately 4.403. Eta Andromedae was discovered to be a double-lined spectroscopic binary in a series of spectra taken in 1899 and 1900. Its orbit was computed in 1946 from spectroscopic observations.
Bibliographische Angaben
- 2011, Aufl., 104 Seiten, Kartoniert (TB), Englisch
- Herausgegeben von Bert, Adam Cornelius
- Verlag: Alphascript Publishing
- ISBN-10: 6138091655
- ISBN-13: 9786138091653
Sprache:
Englisch
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