Kepler-974

Planetary system · 438.1 light-years away

Kepler-974 is 438 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 3,687 K star; the first was found in 2013 by transit (Kepler).

Fly there in 3D

Worth knowing

KOI-1843.03 goes round its star every 4.2 hours, 497 times as often as Mercury goes round the Sun.

The star

Surface temperature3,687 K
Mass0.52 solar masses
Radius0.5 solar radii
Luminosity0.04423 times the Sun
Apparent magnitude15.295
Ageabout 4.37 billion years
Distance from the Sun438.1 light-years (134.3 parsecs)
Position (J2000)RA 285.0131°, Dec 40.2210°
ConstellationLyra

Planets (2)

PlanetYearOrbitRadiusMassFound
KOI-1843.034.2 hours0.0050 AU0.61 R⊕8 M⊕Transit, 2013
Kepler-974 b4.19 days0.0419 AU1.57 R⊕3.09 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 3,687 K, 0.044 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.22 to 0.42 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 438 years ago, around 1590.

Nearest systems to it

Also found by Kepler

Sources

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