K
Type spectral

K
Effective temperature
3,500–5,000 K
Rayon solaire
0.7–0.96 R
Masse solaire
0.45–0.8 M

En astronomie, une étoile orange de la séquence principale, appelée communément naine orange, est une étoile de type K V (lire « K cinq »), c'est-à-dire une étoile appartenant à la séquence principale (classe de luminosité V) de type spectral K (étoile orange). Elles se situent entre les naines jaunes (analogues au Soleil) et les naines rouges. Elles ont des masses de l'ordre de 0,5 à 0,8 fois celle du Soleil et des températures de surface comprises entre 3900 et 5 200 K.

Uses material from the Wikipedia article "Naine orange", which is released under the Creative Commons BY-SA 3.0.
Objet céleste Distance Wiki
109 HerculisÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK119[x]
14 HerculisÉtoile, Double or multiple star, Infra-Red source, High proper-motion StarK58[x]
36 OphiuchiÉtoile, Double or multiple star, Infra-Red sourceK19[x]
42 DraconisÉtoile, Infra-Red source, High proper-motion Star, UV-emission sourceK315[x]
6 LyncisÉtoile, Double or multiple star, Infra-Red source, High proper-motion StarK182[x]
6 SagittariiÉtoile, Infra-Red sourceK2631[x]
61 CygniÉtoile, Double or multiple star, Infra-Red source, X-ray sourceK11[x]
70 OphiuchiÉtoile, Double or multiple star, Variable of BY Dra type, Infra-Red source, High proper-motion Star, Étoile binaire, UV-emission source, Variable Star, X-ray sourceK16[x]
98 AquariiÉtoile, Infra-Red source, UV-emission sourceK164[x]
AB PictorisÉtoile, Variable of BY Dra type, Infra-Red source, Pre-main sequence Star, UV-emission source, Variable Star, X-ray sourceK150[x]
AlbireoÉtoile, Double or multiple star, Star in double system, Infra-Red source, Variable StarK435[x]
AldebaranÉtoile, Double or multiple star, Infra-Red source, Long Period Variable, High proper-motion Star, UV-emission source, Variable StarK67[x]
AlgiebaÉtoile, Double or multiple star, Infra-Red sourceK130[x]
Alpha AntliaeÉtoile, Infra-Red source, Variable StarK366[x]
Alpha HorologiiÉtoile, Infra-Red source, High proper-motion Star, UV-emission sourceK115[x]
Alpha IndiÉtoile, Double or multiple star, Infra-Red source, UV-emission sourceK98[x]
Alpha ScutiÉtoile, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK199[x]
Alpha TucanaeÉtoile, Double or multiple star, Infra-Red source, Étoile binaire, UV-emission sourceK200[x]
Alpha VolantisÉtoile, Double or multiple star, Infra-Red source, UV-emission source125[x]
AlphardÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK180[x]
AlsciaukatÉtoile, Infra-Red source, Semi-regular pulsating Star, Variable StarK382[x]
AnkaaÉtoile, Infra-Red source, High proper-motion Star, Étoile binaire, UV-emission sourceK85[x]
ArcturusÉtoile, Infra-Red source, High proper-motion Star, Géante rouge, UV-emission source, Variable StarK37[x]
Asellus AustralisÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceK131[x]
AzhaÉtoile, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK136[x]
Baten KaitosÉtoile, Double or multiple star, Infra-Red source, Étoile binaire, UV-emission source, Variable StarK235[x]
BD+26 2184Étoile, Infra-Red sourceK69[x]
BD-01 2784Étoile, Infra-Red sourceK67[x]
Beta ReticuliÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, Étoile binaire, UV-emission sourceK100[x]
Beta VolantisÉtoile, Infra-Red source, Variable StarK108[x]
BoteinÉtoile, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK169[x]
BundaÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, Étoile binaire, UV-emission sourceK73[x]
CebalraiÉtoile, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK82[x]
CF 17413Étoile, Infra-Red source, Pre-main sequence Star, X-ray sourceK96[x]
Delta AndromedaeÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, Étoile binaire, UV-emission source, Variable StarK105[x]
Delta AurigaeÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, Étoile binaire, UV-emission sourceK141[x]
Delta LeporisÉtoile, Infra-Red source, High proper-motion Star, UV-emission sourceK113[x]
Delta MuscaeÉtoile, Infra-Red source, High proper-motion Star, Étoile binaireK90[x]
Deneb AlgediÉtoile, Double or multiple star, Eclipsing binary of Algol type (detached), Infra-Red source, High proper-motion Star, Étoile binaire, UV-emission source, Variable Star, X-ray source39[x]
DiphdaÉtoile, Infra-Red source, High proper-motion Star, UV-emission source, Variable Star, X-ray sourceK96[x]
EnifÉtoile, Double or multiple star, Infra-Red source, Long-period variable star, Étoile chimiquement particulière, UV-emission source, Variable StarK690[x]
Epsilon CrucisÉtoile, Infra-Red source, High proper-motion Star, Variable StarK230[x]
Epsilon CygniÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceK72[x]
Epsilon EridaniÉtoile, Double or multiple star, Variable of BY Dra type, Infra-Red source, High proper-motion Star, Rotationally variable Star, UV-emission source, Variable Star, X-ray sourceK11[x]
Epsilon IndiÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, Pre-main sequence Star, UV-emission source, X-ray sourceK12[x]
Epsilon PhoenicisÉtoile, Infra-Red source, High proper-motion Star, UV-emission sourceK145[x]
Epsilon ReticuliÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceK59[x]
Epsilon ScorpiiÉtoile, Infra-Red source, High proper-motion Star, UV-emission source, Variable Star, X-ray sourceK64[x]
Epsilon SerpentisÉtoile, Infra-Red source, UV-emission source70[x]
Eta CepheiÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceK46[x]
Eta SerpentisÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK61[x]
EtaminÉtoile, Double or multiple star, Infra-Red source, UV-emission sourceK154[x]
G ScorpiiÉtoile, Double or multiple star, Infra-Red source, UV-emission source, Variable StarK126[x]
Gliese 868Étoile, Infra-Red source, High proper-motion StarK44[x]
Groombridge 1618Étoile, Double or multiple star, Étoile éruptive, Infra-Red source, High proper-motion Star, Variable Star, X-ray sourceK16[x]
GrumiumÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceK112[x]
H ScorpiiÉtoile, Infra-Red source, Variable StarK342[x]
HamalÉtoile, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK66[x]
HAT-P-3Étoile, Infra-Red source, Extra-solar Planet, Variable StarK457[x]
HIP 2Étoile, Infra-Red source, High proper-motion StarK156[x]
HIP 20277Étoile, High proper-motion StarK143[x]
HIP 98001Étoile, Double or multiple star, Infra-Red source, High proper-motion Star, Étoile binaireK151[x]
HN BootisÉtoile, Variable of BY Dra type, Infra-Red source, High proper-motion Star, UV-emission source, Variable Star, X-ray sourceK53[x]
HR 8210Étoile, Variable Star of delta Sct type, Infra-Red source, Étoile binaire, UV-emission source, Variable Star, Naine blanche, X-ray source151[x]
Iota CentauriÉtoile, Infra-Red source, High proper-motion Star59[x]
Iota CepheiÉtoile, Infra-Red source, UV-emission source, Variable StarK116[x]
Iota GruisÉtoile, Infra-Red source, Étoile binaire, UV-emission source, X-ray sourceK183[x]
Iota SagittariiÉtoile, Infra-Red source, UV-emission sourceK182[x]
Kappa OphiuchiÉtoile, Infra-Red source, Long Period Variable, High proper-motion Star, UV-emission source, Variable StarK91[x]
Kaus BorealisÉtoile, Double or multiple star, Infra-Red source, UV-emission sourceK78[x]
KX LibraeÉtoile, Double or multiple star, Variable of BY Dra type, Infra-Red source, High proper-motion Star, Variable StarK19[x]
LHS 1875Étoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, X-ray sourceK28[x]
LHS 200Étoile, Infra-Red source, High proper-motion Star, Rotationally variable Star, Variable StarK29[x]
LHS 71Étoile, Double or multiple star, Étoile éruptive, Infra-Red source, High proper-motion Star, Variable StarK21[x]
LTT 4350Étoile, Double or multiple star, Infra-Red source, High proper-motion StarK96[x]
LTT 5873Étoile, Infra-Red source, High proper-motion Star, X-ray sourceK104[x]
MenkentÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceK59[x]
MesarthimÉtoile, Double or multiple star, Variable Star of alpha2 CVn type, Infra-Red source, UV-emission source, Variable Star204[x]
NashiraÉtoile, Variable Star of alpha2 CVn type, Infra-Red source, UV-emission source, Variable Star157[x]
NLTT 1512Étoile, Infra-Red source, High proper-motion StarK117[x]
NLTT 16570Étoile, Infra-Red source, High proper-motion StarK112[x]
NLTT 25207Étoile, Infra-Red source, High proper-motion StarK91[x]
P EridaniÉtoile, Double or multiple star, Infra-Red source, UV-emission source, X-ray sourceK27[x]
Pi HydraeÉtoile, Infra-Red source, UV-emission sourceK101[x]
Pi PuppisÉtoile, Double or multiple star, Star in Cluster, Infra-Red source, Semi-regular pulsating Star, Variable StarK807[x]
PolluxÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable Star, X-ray sourceK34[x]
PraecipuaÉtoile, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK95[x]
RanaÉtoile, Infra-Red source, High proper-motion Star, Rotationally variable Star, Variable of RS CVn type, UV-emission source, Variable StarK30[x]
SceptrumÉtoile, Double or multiple star, Infra-Red source, UV-emission sourceK110[x]
SchedarÉtoile, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarK229[x]
SheratanÉtoile, Double or multiple star, Infra-Red source, Étoile binaire, UV-emission source, Variable Star58[x]
Sigma Canis MajorisÉtoile, Double or multiple star, Star in Cluster, Infra-Red source, Long-period variable star, UV-emission source, Variable StarK1121[x]
Sigma PuppisÉtoile, Double or multiple star, Ellipsoidal variable Star, Infra-Red source, High proper-motion Star, Étoile binaire, UV-emission source, Variable StarK184[x]
SPOCS 111Étoile, Infra-Red source, High proper-motion StarK114[x]
T TauriÉtoile, Double or multiple star, Star in Nebula, Emission-line Star, Objet Herbig-Haro, Infra-Red source, Variable Star of Orion Type, Étoile variable de type T Tauri, UV-emission source, Variable Star, X-ray sourceK595[x]
Tau PuppisÉtoile, Infra-Red source, Étoile binaire, UV-emission sourceK182[x]
Tau SagittariiÉtoile, Infra-Red source, High proper-motion Star, Étoile binaire, UV-emission sourceK121[x]
Theta GruisÉtoile, Double or multiple star, Infra-Red source, UV-emission source, X-ray source132[x]
UnukalhaiÉtoile, Double or multiple star, Infra-Red source, UV-emission source, Variable Star, X-ray sourceK74[x]
V1487 AquilaeTrou noir, Rayon gamma, Low Mass X-ray Binary, Nova, Variable Star, X-ray sourceK8100[x]