| Beta Delphini
|
|
| Die ligging van Beta Delphini (in die rooi sirkel).
|
| Sterrebeeld |
Dolfyn
|
| Spektraaltipe |
F5 III + F5 IV[1]
|
| Soort |
Dubbelster
|
| Waarnemingsdata (Epog J2000)
|
| Regte klimming |
20h 37m 32.94130s[2]
|
| Deklinasie |
+14° 35′ 42.3195″[2]
|
| Skynmagnitude (m) |
3,617±0,016[3] (4,11 + 5,01)[4]
|
| Wentelperiode |
26,66 jaar
|
| Absolute magnitude (M) |
2,79±0,14[3]
|
| Besonderhede
|
| Komponent 1 |
β Del A
|
| Massa (M☉) |
1,75±0,002[3]
|
| Ligsterkte (L☉) |
24[5]
|
| Temperatuur (K) |
6 587[5]
|
| Rotasiespoed (km/s) |
49,8[5]
|
| Metaalinhoud [Fe/H] |
-0,05[3]
|
| Komponent 2 |
β Del B
|
| Massa (M☉) |
1,47±0,04[3]
|
| Ligsterkte (L☉) |
8[6]
|
| Eienskappe
|
| Ouderdom (jaar) |
1,79+0,17−0,72[3]
|
| Ander name
|
| Rotanen, Venator, 6 Delphini, BD+14 4369, HD 196524, HIP 101769, HR 7882, SAO 106316, WDS 20375+1436AB.[7][8][9]
|
|
|
Beta Delphini (β Delphini, afgekort as Beta Del of β Del), tradisioneel bekend as Rotanev,[10] is ’n dubbelster sowat 100 ligjare van die Son af in die sterrebeeld Dolfyn (Delphinus). Dit is die helderste ster in die Dolfyn.
- ↑ Verwysingfout: Invalid
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- ↑ 2,0 2,1 Verwysingfout: Invalid
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- ↑ 3,0 3,1 3,2 3,3 3,4 3,5 Verwysingfout: Invalid
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- ↑ Verwysingfout: Invalid
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- ↑ 5,0 5,1 5,2 Verwysingfout: Invalid
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- ↑ Verwysingfout: Invalid
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- ↑ Verwysingfout: Invalid
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- ↑ Verwysingfout: Invalid
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- ↑ Verwysingfout: Invalid
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- ↑ "IAU Catalog of Star Names" (in Engels). Geargiveer vanaf die oorspronklike op 30 April 2020. Besoek op 28 Julie 2016.
