TOI-1807

Planetary system · 138.9 light-years away · also HIP 65469

TOI-1807 is 139 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 4,914 K star; the first was found in 2021 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

TOI-1807 b goes round its star every 13.2 hours, 160 times as often as Mercury goes round the Sun.

The star

Surface temperature4,914 K
Mass0.8048 solar masses
Radius0.746 solar radii
Luminosity0.293 times the Sun
Apparent magnitude10
Ageabout 2.1 billion years
Distance from the Sun138.9 light-years (42.6 parsecs)
Position (J2000)RA 201.2826°, Dec 38.9224°
ConstellationCanes Venatici

Planets (1)

PlanetYearOrbitRadiusMassFound
TOI-1807 b13.2 hours0.0122 AU1.4968 R⊕2.44 M⊕Transit, 2021

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 4,914 K, 0.29 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.54 to 0.98 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 139 years ago, around 1890.

Nearest systems to it

Also found by Transiting Exoplanet Survey Satellite (TESS)

Sources

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