HD 52265
| Stern HD 52265 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AladinLite | |||||||||||||
| Beobachtungsdaten Äquinoktium: J2000.0, Epoche: J2000.0 | |||||||||||||
| Sternbild | Einhorn | ||||||||||||
| Rektaszension | 07h 00m 18,0s [1] | ||||||||||||
| Deklination | −05° 22′ 02″ [1] | ||||||||||||
| Bekannte Exoplaneten | 1 | ||||||||||||
| Helligkeiten | |||||||||||||
| Scheinbare Helligkeit | 6,3 mag[1] | ||||||||||||
| Spektrum und Indices | |||||||||||||
| B−V-Farbindex | +0,57[2] | ||||||||||||
| U−B-Farbindex | +0,09[2] | ||||||||||||
| Spektralklasse | G0 III-IV[1] | ||||||||||||
| Astrometrie | |||||||||||||
| Radialgeschwindigkeit | (+53,4 ± 0,1) km/s[3] | ||||||||||||
| Parallaxe | (34,53 ± 0,40) mas[4] | ||||||||||||
| Entfernung | (94,5 ± 1,1) Lj (29,0 ± 0,3) pc [4] | ||||||||||||
| Visuelle Absolute Helligkeit Mvis | +4,0 mag[Anm 1] | ||||||||||||
| Eigenbewegung[4] | |||||||||||||
| Rek.-Anteil: | (−116,13 ± 0,38) mas/a | ||||||||||||
| Dekl.-Anteil: | (+80,29 ± 0,30) mas/a | ||||||||||||
| Physikalische Eigenschaften | |||||||||||||
| Masse | ca. 1,2 M☉ | ||||||||||||
| Radius | ca. 1,3 R☉ | ||||||||||||
| Andere Bezeichnungen und Katalogeinträge | |||||||||||||
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| Anmerkung | |||||||||||||
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HD 52265 ist ein etwas über 90 Lichtjahre von der Erde entfernter Stern der Spektralklasse G0 mit einer scheinbaren Helligkeit von 6,3 mag. Im Jahre 2000 entdeckte Paul Butler einen extrasolaren Planeten, der diesen Stern umkreist. Dieser trägt die Bezeichnung HD 52265 b.
Weblinks
Einzelnachweise
- ↑ a b c Hipparcos-Katalog (ESA 1997)
- ↑ a b Bright Star Catalogue
- ↑ Pulkovo radial velocities for 35493 HIP stars
- ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)
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