Mimosa
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Mimosa se ligging (in die rooi sirkel).
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Sterrebeeld |
Suiderkruis
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Bayer-naam |
Beta Crucis
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Spektraaltipe |
B0,5 III[1] / B2 V[2]
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Soort |
Dubbelster
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Waarnemingsdata (Epog J2000)
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Regte klimming |
12h 47m 43.26877s[3]
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Deklinasie |
-59° 41′ 19.5792″[3]
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Skynmagnitude (m) |
1,25[4] (1,23 – 1,31)[5]
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B-V-kleurindeks |
-0,23[4]
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U-B-kleurindeks |
-0,98[4]
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Besonderhede
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Massa (M☉) |
16 / 10[2]
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Radius (R☉) |
A: 8,4 ± 0,6[1]
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Ligsterkte (L☉) |
A: 34 000[1]
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Ouderdom (jaar) |
8 tot 11 miljoen[1]
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Temperatuur (K) |
A: 27 000 ± 1 000[1]
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Rotasiespoed (km/s) |
A: 35[1]
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Metaalinhoud [Fe/H] |
A: -0,08 deks[6]
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Eienskappe
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Veranderlikheid |
A: β Cep[1]
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Veelvoudigheid |
Dubbelster
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Ander name
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Mimosa,[7] Becrux,[8] HR 4853, CPD−59°4451, HD 111123, FK5 481, SAO 240259, HIP 62434
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Mimosa (ook bekend as Beta Crucis, β Cru of Becrux) is ’n dubbelster; die tweede helderste ster in die sterrebeeld Suiderkruis, naas Acrux (Alpha Crucis); en die 19de helderste ster in die naglug. Dit is deel van die prominente asterisme wat ook as die Suiderkruis bekend is.
- ↑ 1,0 1,1 1,2 1,3 1,4 1,5 1,6 Verwysingfout: Invalid
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- ↑ 2,0 2,1 Verwysingfout: Invalid
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- ↑ 3,0 3,1 Verwysingfout: Invalid
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- ↑ 4,0 4,1 4,2 Verwysingfout: Invalid
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- ↑ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007–2013)". VizieR On-line Data Catalog: B/gcvs. Oorspronklik gepubliseer in: 2009yCat....102025S. 1: 02025. Bibcode:2009yCat....102025S.
- ↑ Verwysingfout: Invalid
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- ↑ Verwysingfout: Invalid
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- ↑ Verwysingfout: Invalid
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