G
Spektralklasse

G
Effektive Temperatur
5,000–6,000 K
Sonnenradius
0.96–1.15 R☉
Sonnenmasse
0.8–1.04 M☉

Ein Gelber Zwerg ist ein Stern, der auf der Hauptreihe steht und mit der Sonne in Masse sowie in Größe vergleichbar ist. Die Hauptreihe macht fast 90 Prozent aller Sterne aus und verläuft im Hertzsprung-Russell-Diagramm diagonal von der oberen Mitte nach rechts unten zu den roten, kleinen Sternen. Die Sonne selbst gehört zur Gruppe der Gelben Zwerge, die aber – im Gegensatz zu Begriffen wie Weißer Zwerg oder Roter Riese – kein feststehender Begriff ist. Man nimmt mit diesem Namen nur Bezug auf die relativ geringe Größe dieser „Durchschnittssterne“ (im Vergleich z. B. zu Roten Riesen) und auf die gelbliche Farbe. Gelbe Zwerge weisen mit Massen von 0,8 bis 1,1 Sonnenmassen Oberflächentemperaturen von etwa 5300 K bis 6.000 K auf und entsprechen der Spektralklasse G der Leuchtkraftklasse V. Die meisten der Gelben Zwergsterne gehören der Sternpopulation I an.

Uses material from the Wikipedia article "Gelber Zwerg", which is released under the Creative Commons BY-SA 3.0.
Astronomisches Objekt AbstandWiki
109 PisciumStern, Infra-Red source, High proper-motion StarG106[x]
14 AndromedaeStern, Infra-Red source, High proper-motion Star, Variable StarG258[x]
18 ScorpiiStern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarG46[x]
23 LibraeStern, Infra-Red source, High proper-motion Star, UV-emission sourceG86[x]
47 Ursae MajorisStern, Infra-Red source, High proper-motion Star, UV-emission sourceG46[x]
51 PegasiStern, Double or multiple star, Infra-Red source, High proper-motion Star, Rotationally variable Star, UV-emission source, Variable Star, Star suspected of VariabilityG51[x]
61 VirginisStern, Double or multiple star, Infra-Red source, High proper-motion Star, Rotationally variable Star, UV-emission sourceG28[x]
70 VirginisStern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceG58[x]
79 CetiStern, Double or multiple star, Infra-Red source, High proper-motion StarG127[x]
Alpha CentauriStern, Double or multiple star, Infra-Red source, High proper-motion Star, Doppelstern, UV-emission source, RöntgenquelleG4[x]
AlshainStern, Double or multiple star, Infra-Red source, High proper-motion Star, Rotationally variable Star, UV-emission source, Variable Star, RöntgenquelleG45[x]
AltaisStern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceG98[x]
AnchaStern, Infra-Red source, High proper-motion Star, UV-emission sourceG188[x]
BD+20 1018Stern, Double or multiple star, Infra-Red source, High proper-motion StarG110[x]
BD+20 2314Stern, Infra-Red source, High proper-motion StarG108[x]
BD-01 2075Stern, Infra-Red sourceG162[x]
BD-17 4442Stern, Infra-Red sourceG106[x]
Beta HydriStern, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarG25[x]
BPM 590Stern, Infra-Red source, High proper-motion StarG106[x]
CapellaStern, Double or multiple star, Infra-Red source, High proper-motion Star, Variable of RS CVn type, Doppelstern, UV-emission source, Variable Star, RöntgenquelleG43[x]
CD-58 4207Stern, Infra-Red sourceG129[x]
CD-63 359Stern, Double or multiple starG116[x]
CharaStern, Double or multiple star, Infra-Red source, High proper-motion Star, Doppelstern, UV-emission source, Variable Star, RöntgenquelleG28[x]
DubheStern, Double or multiple star, Infra-Red source, High proper-motion Star, Doppelstern, UV-emission source, Variable StarG123[x]
GCRV 52424Stern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceG107[x]
Gliese 3002Stern, Infra-Red source, High proper-motion Star, UV-emission source, RöntgenquelleG128[x]
Gliese 4014Stern, Infra-Red source, High proper-motion StarG192[x]
Gliese 4052Stern, Infra-Red source, High proper-motion StarG122[x]
HD 222582Stern, Double or multiple star, Infra-Red source, High proper-motion StarG137[x]
HIP 100970Stern, Double or multiple star, Infra-Red source, High proper-motion StarG122[x]
HIP 101806Stern, Double or multiple starG163[x]
HIP 104903SternG148[x]
HIP 108375Stern, High proper-motion StarG149[x]
HIP 116616Stern, Infra-Red source, High proper-motion StarG160[x]
HIP 118319Stern, Infra-Red sourceG321[x]
HIP 12191Stern, Star in Cluster, Infra-Red source, High proper-motion StarG189[x]
HIP 17960Stern, Infra-Red source, High proper-motion StarG152[x]
HIP 20723Stern, Infra-Red sourceG138[x]
HIP 21850Stern, Infra-Red sourceG173[x]
HIP 30860Stern, Infra-Red sourceG160[x]
HIP 32916SternG144[x]
HIP 32970SternG150[x]
HIP 39417Stern, Infra-Red source, High proper-motion StarG179[x]
HIP 42282Stern, Infra-Red source, High proper-motion StarG328[x]
HIP 59610Stern, Infra-Red source, High proper-motion StarG123[x]
HIP 60081Stern, Infra-Red sourceG167[x]
HIP 6512Stern, Double or multiple star, Infra-Red source, High proper-motion Star, RöntgenquelleG184[x]
HIP 68162Stern, Double or multiple star, Infra-Red source, High proper-motion StarG147[x]
HIP 77517Stern, High proper-motion StarG161[x]
HIP 81022SternG202[x]
HIP 90004Stern, Infra-Red sourceG140[x]
HIP 95740Stern, Infra-Red sourceG180[x]
HIP 96507Stern, Double or multiple star, Infra-Red source, High proper-motion StarG164[x]
HIP 97336Stern, Double or multiple star, Infra-Red source, High proper-motion StarG157[x]
HIP 97546Stern, Infra-Red source, UV-emission sourceG144[x]
HIP 98714Stern, Infra-Red source, High proper-motion StarG201[x]
HR 2622Stern, Infra-Red source, UV-emission sourceG94[x]
HR 6441Stern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceG156[x]
i BootisStern, Double or multiple star, Infra-Red source, High proper-motion Star, Doppelstern, UV-emission source, Variable Star, Eclipsing binary of W UMa type (contact binary), RöntgenquelleG42[x]
Iota CapricorniStern, Variable of BY Dra type, Infra-Red source, UV-emission source, Variable Star, RöntgenquelleG197[x]
KornephorosStern, Double or multiple star, Infra-Red source, Doppelstern, UV-emission source, Variable Star, RöntgenquelleG139[x]
KrazStern, Infra-Red source, High proper-motion Star, UV-emission source, Variable StarG146[x]
Lalande 35998Stern, Double or multiple star, Star in double system, Infra-Red source, High proper-motion Star, Doppelstern, UV-emission sourceG160[x]
LTT 1582Stern, Double or multiple star, Infra-Red source, High proper-motion StarG116[x]
LTT 3928Stern, Infra-Red source, High proper-motion StarG115[x]
LTT 9276Stern, Infra-Red source, High proper-motion StarG116[x]
MebsutaStern, Double or multiple star, Infra-Red source, UV-emission source, Variable StarG845[x]
NihalStern, Double or multiple star, Infra-Red source, UV-emission source, Variable Star, RöntgenquelleG161[x]
OgmaStern, High proper-motion StarG121[x]
Omicron Ursae MajorisStern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable Star, RöntgenquelleG179[x]
Pi MensaeStern, Infra-Red source, High proper-motion Star, UV-emission sourceG60[x]
Rho CassiopeiaeStern, Emission-line Star, Infra-Red source, Semi-regular pulsating Star, Variable StarG11649[x]
Rho IndiStern, Infra-Red sourceG87[x]
SadalbariStern, Infra-Red source, High proper-motion Star, UV-emission sourceG106[x]
SAO 99049Stern, Infra-Red source, High proper-motion StarG106[x]
Sigma DraconisStern, Double or multiple star, Infra-Red source, High proper-motion Star, Rotationally variable Star, UV-emission source, Variable Star, RöntgenquelleG19[x]
SPOCS 678Stern, Infra-Red source, Pre-main sequence Star, RöntgenquelleG112[x]
Tau CetiStern, Double or multiple star, Infra-Red source, High proper-motion Star, Rotationally variable Star, UV-emission source, RöntgenquelleG12[x]
TonatiuhStern, Infra-Red source, High proper-motion StarG52[x]
VindemiatrixStern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission source, Variable Star, RöntgenquelleG110[x]
Wolf 1326Stern, Infra-Red source, High proper-motion StarG120[x]
Wolf 646Stern, Infra-Red source, High proper-motion Star, UV-emission sourceG144[x]
Yed PosteriorStern, Double or multiple star, Infra-Red source, UV-emission sourceG107[x]
1 GeminorumStern, Double or multiple star, Infra-Red source, Doppelstern, UV-emission source, Variable Star, RöntgenquelleG155
11 Leonis MinorisStern, Double or multiple star, Infra-Red source, High proper-motion Star, Rotationally variable Star, Variable of RS CVn type, UV-emission source, Variable Star, RöntgenquelleG37
112 PisciumStern, Infra-Red source, High proper-motion Star, Rotationally variable Star, UV-emission source, Variable StarG110
13 OrionisStern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceG90
13 TrianguliStern, Infra-Red source, UV-emission sourceG102
14 TauriStern, Infra-Red source, UV-emission sourceG409
15 Leonis MinorisStern, Infra-Red source, High proper-motion Star, UV-emission sourceG60
18 CetiStern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceG101
20 Leonis MinorisStern, Double or multiple star, Infra-Red source, High proper-motion Star, UV-emission sourceG49
24 Leonis MinorisStern, Infra-Red source, High proper-motion Star, UV-emission sourceG108
27 ArietisStern, Infra-Red source, UV-emission sourceG289
29 CetiStern, Infra-Red source, High proper-motion StarG158
2MASS J02203674+5705366Stern, Star in Cluster, Infra-Red sourceG7691
2MASS J02213620+5711087Stern, Star in Cluster, Infra-Red sourceG7650
2MASS J04301150+3517024Stern, Infra-Red source, Near-IR source (? < 10 ?m), Röntgenquelle, Young Stellar ObjectG2580
2MASS J05362819-0524176Stern, Star in Cluster, Infra-Red sourceG1285
2MASS J06410295+0947543Stern, Star in Cluster, Infra-Red source, Variable Star, Röntgenquelle, Young Stellar ObjectG2195