Concept information
Terme préférentiel
G-type star
Définition
- A G star is a yellowish star of spectral type G, with a surface temperature in the range 5,000 to 5,800°C and mass of 0.8 to 1.1 solar masses. G stars have spectra containing many absorption lines of neutral and ionized metals, together with some molecular absorption bands. The H and K lines of ionized calcium are particularly strong. Main sequence G stars, of which the Sun and Alpha Centauri A are examples, are the prime targets of searches for exoplanets and targeted SETI programs. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/G/Gstar.html)
Concept générique
Synonyme(s)
- G star
Traductions
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français
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étoile G
URI
http://data.loterre.fr/ark:/67375/MDL-NW154X4D-M
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