K2-290

Planetary system · 890.1 light-years away

K2-290 is 890 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 6,302 K star; the first was found in 2019 by transit (K2).

Fly there in 3D

Worth knowing

K2-290 b goes round its star every 9.21 days, 10 times as often as Mercury goes round the Sun.

K2-290 is one of 3 stars in its system. The position of the other 2 is not catalogued, so only K2-290 and its planets are drawn.

The star

Surface temperature6,302 K
Mass1.194 solar masses
Radius1.511 solar radii
Luminosity2.632 times the Sun
Apparent magnitude11.114
Ageabout 4 billion years
Distance from the Sun890.1 light-years (272.9 parsecs)
Position (J2000)RA 234.8579°, Dec -20.1989°
ConstellationLibra

Planets (2)

PlanetYearOrbitRadiusMassFound
K2-290 b9.21 days0.0923 AU3.06 R⊕10.9 M⊕Transit, 2019
K2-290 c48.4 days0.305 AU11.276 R⊕246 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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