TOI-5916

Planetary system · 651.4 light-years away

TOI-5916 is 651 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M2 star; the first was found in 2026 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

TOI-5916 b goes round its star every 2.37 days, 37 times as often as Mercury goes round the Sun.

The star

Spectral typeM2
Surface temperature3,541 K
Mass0.518 solar masses
Radius0.487 solar radii
Luminosity0.0349 times the Sun
Apparent magnitude16.602
Ageabout 5 billion years
Distance from the Sun651.4 light-years (199.7 parsecs)
Position (J2000)RA 325.2995°, Dec 9.5991°
ConstellationPegasus

Planets (1)

PlanetYearOrbitRadiusMassFound
TOI-5916 b2.37 days0.0279 AU11.8 R⊕219 M⊕Transit, 2026

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 3,541 K, 0.035 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.19 to 0.37 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 651 years ago, around 1370.

Nearest systems to it

Also found by Transiting Exoplanet Survey Satellite (TESS)

Sources

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