Rukbat
| Rukbat | ||||
|---|---|---|---|---|
| Plaats uw zelfgemaakte foto hier | ||||
| Sterrenbeeld | Boogschutter (Sagittarius) | |||
| Bayer-aanduiding | α Sgr | |||
| Waarnemingsgegevens | ||||
| Rechte klimming | 19u23m53,2s | |||
| Declinatie (Epoche 2000) |
−40° 36' 58" | |||
| Schijnbare magnitude | 3,97 | |||
| Details | ||||
| Lichtkracht | 112 (× Zon) | |||
| Spectraalklasse | B8V | |||
| Temperatuur (K) | 12.370 kelvin | |||
| Afstand* (lj) | 181,804 lj (P=17,94 mas) | |||
| Straal | 2,3 (× Zon) | |||
| Massa | 3,2 (× Zon) | |||
| Veranderlijk | nee | |||
| Meervoudig | nee | |||
| * afstanden aangegeven als "parallax xxx = yyy lj" zijn herleid uit de in de bron aangegeven parallax | ||||
| ||||
Rukbat (alpha Sagittarii) is een ster in het sterrenbeeld Boogschutter (Sagittarius). Ondanks dat de ster de letter α (alfa) draagt is het niet de helderste ster van Boogschutter maar slechts nummer 16 in volgorde van helderheid.
De ster staat ook bekend als Rucba, Rukbat al Rami en Alrami.
Bronnen
- Bright Star Catalogue
- (en) Rukbat in SIMBAD
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