Kepler-405

Planetary system · 3473.8 light-years away

Kepler-405 is 3,474 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,818 K star; the first was found in 2014 by transit (Kepler).

Fly there in 3D

Worth knowing

Kepler-405 b goes round its star every 10.6 days, 8 times as often as Mercury goes round the Sun.

The star

Surface temperature5,818 K
Mass0.873 solar masses
Radius0.893 solar radii
Luminosity0.4662 times the Sun
Apparent magnitude16.181
Ageabout 2.09 billion years
Distance from the Sun3473.8 light-years (1065.1 parsecs)
Position (J2000)RA 291.4095°, Dec 38.3400°
ConstellationLyra

Planets (2)

PlanetYearOrbitRadiusMassFound
Kepler-405 b10.6 days0.0950 AU2.08 R⊕4.98 M⊕ estimatedTransit, 2014
Kepler-405 c29.7 days0.188 AU4.66 R⊕19.6 M⊕ estimatedTransit, 2014

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 5,818 K, 0.47 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.65 to 1.14 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 3,474 years ago, around 1400 BC.

Nearest systems to it

Also found by Kepler

Sources

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