B
Classificazione stellare

B
Temperatura efficace
10,000–25,000 K
Raggio solare
1.8–6.6 R☉
Massa solare
2.1–16 M☉

Una stella di classe B V (o stella azzurra di sequenza principale o stella B V, in passato nana bianco-azzurra) è una stella di sequenza principale (ovvero che nel proprio nucleo fonde l'idrogeno in elio) di classe spettrale B e classe di luminosità V (5 in numeri romani). Tali stelle hanno una massa compresa tra 2 e 16 masse solari e temperature superficiali comprese tra 10 000 e 30 000 K. A questa categoria stellare appartiene un numero cospicuo di astri, tra cui Regolo, Algol A e Spica B.

Uses material from the Wikipedia article "Stella di classe B V", which is released under the Creative Commons BY-SA 3.0.
Oggetto celeste Distanza Wiki
106 AquariiStella, Infra-Red source, UV-emission source, X-ray sourceB379[x]
13 AndromedaeStella, Variable Star of alpha2 CVn type, Infra-Red source, UV-emission source, Variable StarB300[x]
18 AquilaeStella, Double or multiple star, Stella binaria, Ellipsoidal variable Star, Infra-Red source, Stella binaria, UV-emission source, Variable StarB699[x]
18 TauriStella, Star in Cluster, Infra-Red source, UV-emission sourceB410[x]
26 AndromedaeStella, Double or multiple star, Infra-Red source, UV-emission sourceB662[x]
50 BootisStella, Infra-Red source, UV-emission sourceB262[x]
54 AurigaeStella, Double or multiple star, Infra-Red source, UV-emission source, Variable StarB843[x]
58 AquilaeStella, Infra-Red source, UV-emission sourceB372[x]
AcruxStella, Double or multiple star, Stella binaria, UV-emission sourceB321[x]
AlbaliStella, Infra-Red source, High proper-motion Star, UV-emission sourceB208[x]
AlcyoneStella, Double or multiple star, Star in Cluster, Star in Nebula, Be Star, Emission-line Star, Infra-Red source, UV-emission source, X-ray sourceB403[x]
AldhibahStella, Double or multiple star, Infra-Red source, UV-emission sourceB329[x]
AlgolStella, Double or multiple star, Eclipsing binary of Algol type (detached), Infra-Red source, Stella binaria, UV-emission source, Variable Star, X-ray sourceB93[x]
AlkaidStella, Infra-Red source, UV-emission source, Variable StarB104[x]
Alpha AraeStella, Double or multiple star, Be Star, Emission-line Star, Eruptive variable Star, Infra-Red source, UV-emission source, Variable Star, X-ray sourceB267[x]
Alpha DoradusStella, Double or multiple star, Variable Star of alpha2 CVn type, Infra-Red source, UV-emission source, Variable StarB169[x]
Alpha LupiStella, Double or multiple star, Variable Star of beta Cep type, Infra-Red source, UV-emission source, Variable Star, X-ray sourceB465[x]
Alpha MuscaeStella, Double or multiple star, Variable Star of beta Cep type, Infra-Red source, UV-emission source, Variable StarB316[x]
Alpha TelescopiiStella, Infra-Red source, UV-emission sourceB278[x]
AlpheratzStella, Double or multiple star, Variable Star of alpha2 CVn type, Infra-Red source, High proper-motion Star, Stella binaria, UV-emission source, Variable StarB96[x]
AludraStella, Double or multiple star, Star in Cluster, Infra-Red source, Pulsating variable Star, Supergigante blu, UV-emission source, Variable StarB1989[x]
Arkab PriorStella, Double or multiple star, Infra-Red sourceB378[x]
AsteropeStella, Double or multiple star, Star in Cluster, Infra-Red source, UV-emission source, Variable StarB372[x]
AtlasStella, Double or multiple star, Star in Cluster, Infra-Red source, Stella binaria, UV-emission source, Variable StarB382[x]
BellatrixStella, Double or multiple star, Infra-Red source, UV-emission source, Variable Star, X-ray sourceB253[x]
Beta LupiStella, Infra-Red source, UV-emission source, Variable StarB382[x]
Beta MuscaeStella, Double or multiple star, Infra-Red source, Stella binaria, UV-emission sourceB342[x]
Beta SculptorisStella, Infra-Red source, UV-emission source, X-ray sourceB175[x]
C CarinaeStella, Double or multiple star, Infra-Red source, UV-emission sourceB253[x]
CelaenoStella, Double or multiple star, Star in Cluster, Infra-Red source, UV-emission source, Variable StarB377[x]
Chi CarinaeStella, Variable Star of beta Cep type, Infra-Red source, UV-emission source, Variable Star, X-ray sourceB455[x]
Delta CentauriStella, Double or multiple star, Be Star, Emission-line Star, Infra-Red source, UV-emission source, Variable StarB415[x]
Delta CrucisStella, Variable Star of beta Cep type, Infra-Red source, UV-emission source, Variable StarB345[x]
E CarinaeStella, Be Star, Emission-line Star, Infra-Red source, UV-emission source, Variable StarB968[x]
ElectraStella, Double or multiple star, Star in Cluster, Star in Nebula, Be Star, Emission-line Star, Infra-Red source, Stella binaria, UV-emission source, Variable StarB405[x]
Epsilon CentauriStella, Double or multiple star, Variable Star of beta Cep type, UV-emission source, Variable StarB427[x]
Epsilon LupiStella, Double or multiple star, Variable Star of beta Cep type, Infra-Red source, Stella binaria, UV-emission sourceB504[x]
Epsilon OrionisStella, Double or multiple star, Emission-line Star, Infra-Red source, Mezzo interstellare, Pulsating variable Star, Supergigante blu, UV-emission source, Variable Star, X-ray sourceB1976[x]
Eta AquariiStella, Blue object, Infra-Red source, UV-emission sourceB168[x]
Eta LupiStella, Double or multiple star, Infra-Red source, UV-emission sourceB442[x]
Gamma LupiStella, Double or multiple star, Ellipsoidal variable Star, Infra-Red source, Stella binaria, UV-emission source, Variable StarB421[x]
Gamma MuscaeStella, Infra-Red source, Pulsating variable Star, UV-emission source, Variable StarB325[x]
GomeisaStella, Double or multiple star, Be Star, Emission-line Star, Infra-Red source, UV-emission source, Variable StarB162[x]
H VelorumStella, Double or multiple star, Infra-Red source, Stella binaria, UV-emission sourceB1264[x]
Iota AquariiStella, Infra-Red source, Stella binaria, UV-emission sourceB175[x]
Iota AquilaeStella, Double or multiple star, Infra-Red source, UV-emission sourceB391[x]
Iota AraeStella, Double or multiple star, Be Star, Emission-line Star, Infra-Red source, UV-emission source, Variable StarB935[x]
JabbahStella, Double or multiple star, Star in Nebula, Infra-Red source, Stella binaria, UV-emission sourceB474[x]
Kaus AustralisStella, Double or multiple star, Infra-Red source, UV-emission source, X-ray sourceB143[x]
L VelorumStella, Infra-Red source, UV-emission sourceB903[x]
MaiaStella, Double or multiple star, Star in Cluster, Star in Nebula, Infra-Red source, UV-emission source, Variable Star, X-ray sourceB383[x]
MeropeStella, Double or multiple star, Star in Cluster, Star in Nebula, Variable Star of beta Cep type, Be Star, Emission-line Star, Infra-Red source, UV-emission source, Variable Star, X-ray sourceB381[x]
MintakaStella, Double or multiple star, Eclipsing binary of Algol type (detached), Stella binaria, Infra-Red source, Stella binaria, UV-emission source, Variable Star, X-ray sourceB693[x]
Omega CarinaeStella, Be Star, Emission-line Star, Infra-Red source, UV-emission sourceB342[x]
p CarinaeStella, Be Star, Emission-line Star, Infra-Red source, UV-emission source, Variable StarB483[x]
p PuppisStella, Double or multiple star, Infra-Red source, UV-emission sourceB225[x]
PeacockStella, Double or multiple star, Infra-Red source, Stella binaria, UV-emission sourceB178[x]
Phi AndromedaeStella, Double or multiple star, Be Star, Emission-line Star, Infra-Red source, UV-emission sourceB716[x]
Phi EridaniStella, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarB154[x]
Pi LupiStella, Double or multiple star, Star in double system, UV-emission source, X-ray sourceB443[x]
PleioneStella, Double or multiple star, Star in Cluster, Be Star, Emission-line Star, Infra-Red source, Variable Star of irregular type, UV-emission source, Variable Star, X-ray sourceB382[x]
R MonocerotisStella, Double or multiple star, Stella Ae/Be di Herbig, Emission-line Star, Regione H II, Infra-Red source, Mezzo interstellare, Nebulosa a riflessione, Variable StarB3000[x]
RegulusStella, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable Star, X-ray sourceB79[x]
Rho CentauriStella, Infra-Red source, UV-emission sourceB379[x]
RigelStella, Double or multiple star, Star in Nebula, Emission-line Star, Infra-Red source, Mezzo interstellare, Pulsating variable Star, Nebulosa a riflessione, Supergigante blu, Stella binaria, UV-emission source, Variable Star, X-ray sourceB863[x]
RukbatStella, UV-emission source, X-ray sourceB181[x]
SaiphStella, Infra-Red source, Supergigante blu, UV-emission source, Variable Star, X-ray sourceB647[x]
Sigma ArietisStella, Infra-Red source, UV-emission sourceB494[x]
Sigma CentauriStella, Double or multiple star, Infra-Red source, UV-emission source, Variable Star, X-ray sourceB412[x]
SpicaStella, Double or multiple star, Variable Star of beta Cep type, Infra-Red source, Stella binaria, UV-emission source, Variable Star, X-ray sourceB250[x]
TaygetaStella, Double or multiple star, Star in Cluster, Infra-Red source, UV-emission source, Variable Star, X-ray sourceB409[x]
Theta CarinaeStella, Star in Cluster, Infra-Red source, Stella binaria, UV-emission source, X-ray sourceB456[x]
V518 CarinaeStella, Star in Cluster, Be Star, Infra-Red source, UV-emission source, Variable StarB454[x]
VV OrionisStella, Double or multiple star, Eclipsing binary of Algol type (detached), Infra-Red source, Stella binaria, UV-emission source, Variable StarB1469[x]
Zeta CrucisStella, Double or multiple star, Infra-Red source, UV-emission sourceB358[x]
103 TauriStella, Double or multiple star, Star in Cluster, Emission-line Star, Infra-Red source, Stella binaria, UV-emission sourceB1496
116 TauriStella, Infra-Red source, UV-emission sourceB424
120 TauriStella, Be Star, Emission-line Star, Infra-Red source, UV-emission source, Variable StarB1553
13 VulpeculaeStella, Double or multiple star, Infra-Red source, UV-emission sourceB334
14 CygniStella, Infra-Red source, UV-emission sourceB652
17 DraconisStella, Double or multiple star, Infra-Red sourceB412
17 VulpeculaeStella, Infra-Red source, UV-emission sourceB504
2 CygniStella, Double or multiple star, Infra-Red source, UV-emission sourceB843
21 Canum VenaticorumStella, Variable Star of alpha2 CVn type, Infra-Red source, UV-emission source, Variable StarB275
27 VulpeculaeStella, Infra-Red source, UV-emission sourceB318
28 VulpeculaeStella, Infra-Red source, UV-emission sourceB522
29 PerseiStella, Star in Cluster, Infra-Red source, UV-emission sourceB638
2MASS J02211701+5708426Stella, Star in Cluster, Stella binaria, Infra-Red source, Variable StarB7647
2MASS J02214293+5705306Star in Cluster, Infra-Red source, Variable StarB7653
2MASS J02214438+5708538Stella, Star in Cluster, Infra-Red source, Variable Star, X-ray sourceB7618
2MASS J02214446+5710522Stella, Star in Cluster, Be Star, Emission-line Star, Infra-Red source, Variable StarB7612
2MASS J02214671+5707269Stella, Star in Cluster, Infra-Red source, Variable StarB7656
2MASS J02214692+5709538Star in Cluster, Infra-Red source, Variable StarB7636
2MASS J02214964+5708215Stella, Star in Cluster, Infra-Red source, Variable StarB7651
2MASS J02215556+5705586Stella, Star in Cluster, Infra-Red source, Variable StarB7615
2MASS J02220081+5707320Stella, Star in Cluster, Stella binaria, Infra-Red source, Variable StarB7691
2MASS J02220247+5709204Stella, Star in Cluster, Be Star, Emission-line Star, Infra-Red source, Variable StarB7665
2MASS J02220490+5706018Stella, Star in Cluster, Infra-Red source, Variable StarB7666
2MASS J02221369+5705173Stella, Star in Cluster, Infra-Red source, Variable StarB7622
2MASS J02221464+5706139Stella, Star in Cluster, Infra-Red source, Variable StarB7661