23 Librae
| Stern 23 Librae | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AladinLite | |||||||||||||||||
| Beobachtungsdaten Äquinoktium: J2000.0, Epoche: J2000.0 | |||||||||||||||||
| Sternbild | Waage | ||||||||||||||||
| Rektaszension | 15h 13m 28,67s [1] | ||||||||||||||||
| Deklination | −25° 18′ 33,65″ [1] | ||||||||||||||||
| Bekannte Exoplaneten | 1 | ||||||||||||||||
| Helligkeiten | |||||||||||||||||
| Scheinbare Helligkeit | 6,45 mag[1] | ||||||||||||||||
| Spektrum und Indices | |||||||||||||||||
| B−V-Farbindex | +0,70[2] | ||||||||||||||||
| Spektralklasse | G6 V[1] | ||||||||||||||||
| Astrometrie | |||||||||||||||||
| Radialgeschwindigkeit | +3,4 km/s[1] | ||||||||||||||||
| Parallaxe | (38,98 ± 0,98) mas[3] | ||||||||||||||||
| Entfernung | (83,7 ± 2,1) Lj (25,7 ± 0,6) pc [3] | ||||||||||||||||
| Eigenbewegung[1] | |||||||||||||||||
| Rek.-Anteil: | (−399 ± 1) mas/a | ||||||||||||||||
| Dekl.-Anteil: | (−75,1 ± 0,8) mas/a | ||||||||||||||||
| Physikalische Eigenschaften | |||||||||||||||||
| Andere Bezeichnungen und Katalogeinträge | |||||||||||||||||
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23 Librae (kurz 23 Lib, auch als HD 134987 bekannt) ist ein 6,45 mag heller Stern der Spektralklasse G6 im Sternbild Waage. Er ist rund 84 Lichtjahre von der Sonne entfernt und besitzt eine Masse von 1,05 Sonnenmassen bei einem Radius von 1,25 Sonnenradien. Im Jahr 2000 wurde bei ihm der Exoplanet 23 Librae b entdeckt.
Weblinks
- 23 Librae (Solstation)
- Star: HD 134987 (Extrasolar Planets Encyclopaedia) ( vom 5. August 2011 im Internet Archive)
- 23 Librae (Extrasolar Visions)
Einzelnachweise
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