G-type star
(G, G-class star)
(stars spectrally similar to the Sun)
A G-type star is a star within the G-class,
a spectral class for stars with metal and
weak hydrogen absorption lines,
a yellow color and a surface temperature
in the range of 5300-6000 K.
The spectral energy distribution (SED) peak is within the visible range.
The Sun is a main sequence star within this class.
Such main sequence stars (aka yellow dwarfs or G dwarfs)
burn their hydrogen in on the order of ten billion years.
Characteristics of G-type main sequence stars:
Some example G-type stars are Alpha Centauri
and T Tauri (a pre-main-sequence star).
Giant stars can also fall in the G-class (yellow giants),
including supergiants (yellow supergiants)
and hypergiants (yellow hypergiants).
(star type,spectral class)
Further reading:
https://en.wikipedia.org/wiki/Stellar_classification#Class_G
https://en.wikipedia.org/wiki/G-type_main-sequence_star
https://en.wikipedia.org/wiki/Giant_star#Yellow_giants
https://en.wikipedia.org/wiki/Yellow_supergiant
https://chview.nova.org/solcom/stars3/100-gs.htm
https://lweb.cfa.harvard.edu/~pberlind/atlas/htmls/gstars.html
WaveL | Freq | Photon Energy | | |
387nm | 775THz | 3.3eV | begin | G-type star |
527nm | 569THz | 2.4eV | end | G-type star |
|
Referenced by pages:
16 Cygni (16 Cyg)
51 Pegasi b (51 Peg b)
barium star (Ba star)
calcium (Ca)
carbon star (C)
Earth analog
FGK star
G band (G)
G-dwarf problem
HD 133131
HD 209458 b
HD 80606 b
Kepler Telescope
Kepler-1625b
Kepler-452b
M-type star (M)
Morgan classification
multiplicity fraction
RR Lyrae variable (RRL)
solar mass (MSun)
spectral class
Spectroscopic Properties of Cool Stars (SPOCS)
Sun
Transiting Exoplanet Survey Satellite (TESS)
WASP-12b
Wilson-Bappu effect
Index