KELT-8

Planetary system · 644.4 light-years away · also HD 343246, TYC 2109-49-1

KELT-8 is 644 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G2 V star; the first was found in 2015 by transit (KELT).

Fly there in 3D

Worth knowing

KELT-8 b goes round its star every 3.24 days, 27 times as often as Mercury goes round the Sun.

The star

Spectral typeG2 V
Surface temperature5,754 K
Mass0.81 solar masses
Radius1.46 solar radii
Luminosity1.84 times the Sun
Apparent magnitude10.845
Ageabout 5.4 billion years
Distance from the Sun644.4 light-years (197.6 parsecs)
Position (J2000)RA 283.3054°, Dec 24.1272°
ConstellationHercules

Planets (1)

PlanetYearOrbitRadiusMassFound
KELT-8 b3.24 days0.0455 AU18.159 R⊕209.77 M⊕Transit, 2015

Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.

Sources

Privacy