Groombridge 1830 NavigatiemenuPlaats uw zelfgemaakte foto hierGroombridge 1830
Grote BeerSubdwerg
stersubdwergsterrenbeeldGrote BeerSter van BarnardSter van Kapteyneigenbewegingboogsecondenrechte klimmingdeclinatie
Groombridge 1830
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Groombridge 1830 | ||||
Plaats uw zelfgemaakte foto hier | ||||
| Overige aanduidingen | BD+38 2285, FK5 1307, GCTP 2745.00, GJ 451, HIP 57939, HR 4550, HD 103095, LHS 44, LTT 13276, SAO 62738, Argelander's Star | |||
Fysische gegevens | ||||
| B-V-kleurindex | +0.75 | |||
| Diameter | 0.681 ± 0.006 R☉ | |||
| Massa | 0,661 M☉ | |||
| Oppervlaktetemperatuur | 4.759 ± 20 K K | |||
| Spectraalklasse | G8VIp | |||
| Lichtkracht | 0.212 ± 0.002 L☉ | |||
| Veranderlijk | misschien | |||
Waarnemingsgegevens | ||||
| Standaardepoche | J2000 | |||
| Rechte klimming | 11u52m55,816s | |||
| Declinatie | 37° 43' 58,11" | |||
| Sterrenbeeld | Grote Beer (Ursa Major) | |||
| Schijnbare helderheid | 6,44 mag | |||
| Afstand | 29,65 lj (P=109,99 mas) | |||
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Groombridge 1830 is een ster (een subdwerg) in het sterrenbeeld Grote Beer (Ursa Major). De ster heeft na de Ster van Barnard en de Ster van Kapteyn de grootste eigenbeweging (+4,00398 boogseconden per jaar in rechte klimming en -5,81362 boogseconden per jaar in declinatie).
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Categorieën:
- Grote Beer
- Subdwerg
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