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- G-type_main-sequence_star abstract "A G-type main-sequence star (G V), often (and imprecisely) called a yellow dwarf, or G dwarf star, is a main-sequence star (luminosity class V) of spectral type G. Such a star has about 0.8 to 1.2 solar masses and surface temperature of between 5,300 and 6,000 K., Tables VII, VIII. Like other main-sequence stars, a G-type main-sequence star is in the process of converting hydrogen to helium in its core by means of nuclear fusion. The Sun is the best known (and most visible) example of a G-type main-sequence star. Each second, it fuses approximately 600 million tons of hydrogen to helium, converting about 4 million tons of matter to energy. Besides the Sun, other well-known examples of G-type main-sequence stars include Alpha Centauri A, Tau Ceti, and 51 Pegasi.The term yellow dwarf is a misnomer, as G stars actually range in color from white, for more luminous types like the Sun, to only slightly yellow for the less luminous GV stars. The Sun is in fact white, but appears yellow through the Earth's atmosphere due to Rayleigh scattering. In addition, although the term "dwarf" is used to contrast yellow main-sequence stars from giant stars, yellow dwarfs like the Sun outshine 90% of the stars in the Galaxy (which are largely orange dwarfs, red dwarfs, and white dwarfs, the latter being a post-main-sequence star).A G-type main-sequence star will fuse hydrogen for approximately 10 billion years, until it is exhausted at the center of the star. When this happens, the star expands to many times its previous size and becomes a red giant, such as Aldebaran (Alpha Tauri). Eventually the red giant sheds its outer layers of gas, which become a planetary nebula, while the core cools and contracts into a compact, dense white dwarf.".
- G-type_main-sequence_star thumbnail Sun920607.jpg?width=300.
- G-type_main-sequence_star wikiPageID "528144".
- G-type_main-sequence_star wikiPageRevisionID "600656827".
- G-type_main-sequence_star hasPhotoCollection G-type_main-sequence_star.
- G-type_main-sequence_star subject Category:G-type_main-sequence_stars.
- G-type_main-sequence_star subject Category:Star_types.
- G-type_main-sequence_star type CelestialBody109239740.
- G-type_main-sequence_star type G-typeMainSequenceStars.
- G-type_main-sequence_star type NaturalObject100019128.
- G-type_main-sequence_star type Object100002684.
- G-type_main-sequence_star type PhysicalEntity100001930.
- G-type_main-sequence_star type Star109444100.
- G-type_main-sequence_star type Whole100003553.
- G-type_main-sequence_star comment "A G-type main-sequence star (G V), often (and imprecisely) called a yellow dwarf, or G dwarf star, is a main-sequence star (luminosity class V) of spectral type G. Such a star has about 0.8 to 1.2 solar masses and surface temperature of between 5,300 and 6,000 K., Tables VII, VIII. Like other main-sequence stars, a G-type main-sequence star is in the process of converting hydrogen to helium in its core by means of nuclear fusion.".
- G-type_main-sequence_star label "Anã amarela".
- G-type_main-sequence_star label "Enana amarilla".
- G-type_main-sequence_star label "G-type main-sequence star".
- G-type_main-sequence_star label "Gelber Zwerg".
- G-type_main-sequence_star label "Gele dwerg".
- G-type_main-sequence_star label "G型主序星".
- G-type_main-sequence_star label "G型主系列星".
- G-type_main-sequence_star label "Naine jaune".
- G-type_main-sequence_star label "Nana gialla".
- G-type_main-sequence_star label "Żółty karzeł".
- G-type_main-sequence_star label "Жёлтый карлик".
- G-type_main-sequence_star label "نجم نوع-ج".
- G-type_main-sequence_star sameAs Žlutý_trpaslík.
- G-type_main-sequence_star sameAs Gelber_Zwerg.
- G-type_main-sequence_star sameAs Αστέρας_τύπου_G.
- G-type_main-sequence_star sameAs Enana_amarilla.
- G-type_main-sequence_star sameAs Nano_hori.
- G-type_main-sequence_star sameAs Naine_jaune.
- G-type_main-sequence_star sameAs Nana_gialla.
- G-type_main-sequence_star sameAs G型主系列星.
- G-type_main-sequence_star sameAs G형_주계열성.
- G-type_main-sequence_star sameAs Gele_dwerg.
- G-type_main-sequence_star sameAs Żółty_karzeł.
- G-type_main-sequence_star sameAs Anã_amarela.
- G-type_main-sequence_star sameAs m.02lwbp.
- G-type_main-sequence_star sameAs Q5864.
- G-type_main-sequence_star sameAs Q5864.
- G-type_main-sequence_star sameAs G-type_main-sequence_star.
- G-type_main-sequence_star wasDerivedFrom G-type_main-sequence_star?oldid=600656827.
- G-type_main-sequence_star depiction Sun920607.jpg.
- G-type_main-sequence_star isPrimaryTopicOf G-type_main-sequence_star.
