17 Lyrae
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Sofort verfügbar, Lieferzeit: 1-3 Tage
Produktnummer:
9786138155454
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 17 Lyrae is a binary star system in the constellation Lyra, approximately 132 light years away from Earth. The main star, 17 Lyrae A, is a 5th magnitude white star of the spectral type F0V, meaning it has a surface temperature of about 7,500 kelvins. It is a dwarf star, like our Sun, yet brighter and hotter. Its companion, 17 Lyrae B, is a 9th magnitude star of an unknown spectral type. There was once thought to be a third star in the system, 17 Lyrae C, until it was evident that the star's parallax and proper motions were too different for it to be part of the system.
| EAN: | 9786138155454 |
|---|---|
| Sprache: | Englisch |
| Seitenzahl: | 72 |
| Produktart: | kartoniert, broschiert |
| Herausgeber: | Bert, Adam Cornelius |
| Verlag: | Alphascript Publishing Chromo Publishing |
| Untertitel: | Binary star, Lyra, Light-year, Dwarf star, Sun, Proper motion, Kelvin |
| Schlagworte: | Lyra siebzehn seventeen |
