31 Aquilae
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 31 Aquilae is a subgiant star in the constellation Aquila. Its apparent magnitude is 5.17. Its age is probably similar to NGC 188,the oldest open cluster known, which was calculated to be over 5 billion years. For its age, it is surprisingly metal rich, contrary to common assumptions that the oldest stars should be metal-poor. No certain substellar companion has been detected so far around 31 Aquilae. McDonald Observatory team has set limits to the presence of one or more planets around 31 Aquilae with masses between 0.22 and 1.9 Jupiter masses and average separations spanning between 0.05 and 5.2 Astronomical Units.
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- Allgemeine Informationen
- GTIN 09786138099352
- Auflage Aufl.
- Editor Emory Christer
- Sprache Englisch
- Genre Physik & Astronomie
- Größe H229mm x B152mm x T3mm
- Jahr 2011
- EAN 9786138099352
- Format Kartonierter Einband (Kt)
- ISBN 978-613-8-09935-2
- Titel 31 Aquilae
- Untertitel Constellation, Aquila (constellation), Subgiant, Apparent magnitude, NGC 188, Metallicity, McDonald Observatory
- Gewicht 91g
- Herausgeber JUNCT
- Anzahl Seiten 52
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