Kepler-755

Planetary system · 1301.5 light-years away

Kepler-755 is 1,302 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this 5,043 K star; the first was found in 2016 by transit (Kepler).

Fly there in 3D

Worth knowing

Kepler-755 b goes round its star every 30.5 hours, 69 times as often as Mercury goes round the Sun.

Kepler-755 is one of 2 stars in its system. The position of the other star is not catalogued, so only Kepler-755 and its planets are drawn.

The star

Surface temperature5,043 K
Mass0.82 solar masses
Radius0.77 solar radii
Luminosity0.3494 times the Sun
Apparent magnitude14.277
Ageabout 4.9 billion years
Distance from the Sun1301.5 light-years (399.0 parsecs)
Position (J2000)RA 296.8609°, Dec 41.0973°
ConstellationCygnus

Planets (2)

PlanetYearOrbitRadiusMassFound
Kepler-755 b30.5 hours0.0216 AU1.76 R⊕3.75 M⊕ estimatedTransit, 2016
Kepler-755 c2.85 days0.0370 AU1.26 R⊕2.13 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 5,043 K, 0.35 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.59 to 1.06 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 1,302 years ago, around AD 720.

Nearest systems to it

Also found by Kepler

Sources

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