Kepler-603

Planetary system · 5021.6 light-years away

Kepler-603 is 5,022 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this 5,808 K star; the first was found in 2016 by transit (Kepler).

Fly there in 3D

Worth knowing

Kepler-603 d goes round its star every 6.22 days, 14 times as often as Mercury goes round the Sun.

The star

Surface temperature5,808 K
Mass1.01 solar masses
Radius1.01 solar radii
Luminosity2.464 times the Sun
Apparent magnitude14.969
Ageabout 4.37 billion years
Distance from the Sun5021.6 light-years (1539.6 parsecs)
Position (J2000)RA 294.2810°, Dec 42.2909°
ConstellationCygnus

Planets (3)

PlanetYearOrbitRadiusMassFound
Kepler-603 d6.22 days0.0712 AU1.32 R⊕2.3 M⊕ estimatedTransit, 2016
Kepler-603 b21.1 days0.161 AU2.65 R⊕7.51 M⊕ estimatedTransit, 2016
Kepler-603 c127.9 days0.534 AU6.5 R⊕34.5 M⊕ estimatedTransit, 2016

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.

The planets, compared

For a star of 5,808 K, 2.5 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.49 to 2.62 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.

The light you see left 5,022 years ago, around 3000 BC.

Nearest systems to it

Also found by Kepler

Sources

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