KELT-23 A

Planetary system · 411.8 light-years away

KELT-23 A is 412 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G2 V star; the first was found in 2019 by transit (KELT-North).

Fly there in 3D

Worth knowing

KELT-23 A b goes round its star every 2.26 days, 39 times as often as Mercury goes round the Sun.

KELT-23 A is one of 2 stars in its system. The position of the other star is not catalogued, so only KELT-23 A and its planets are drawn.

The star

Spectral typeG2 V
Surface temperature5,899 K
Mass0.944 solar masses
Radius0.996 solar radii
Luminosity1.081 times the Sun
Apparent magnitude10.308
Ageabout 6.4 billion years
Distance from the Sun411.8 light-years (126.3 parsecs)
Position (J2000)RA 232.1466°, Dec 66.3587°
ConstellationUrsa Minor

Planets (1)

PlanetYearOrbitRadiusMassFound
KELT-23 A b2.26 days0.0330 AU14.83 R⊕298.12 M⊕Transit, 2019

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

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