G 196-3

Planetary system · 71.1 light-years away

G 196-3 is 71.1 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 3,517 K star; the first was found in 2024 by imaging (European Space Agency (ESA) Gaia Satellite).

Fly there in 3D

Worth knowing

G 196-3 b was photographed directly: it is one of the few exoplanets seen as its own point of light rather than inferred from its star.

Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.

The star

Surface temperature3,517 K
Mass0.519782 solar masses
Radius0.522432 solar radii
Luminosity0.03762 times the Sun
Apparent magnitude11.672
Distance from the Sun71.1 light-years (21.8 parsecs)
Position (J2000)RA 151.0885°, Dec 50.3862°
ConstellationUrsa Major

Planets (1)

PlanetYearOrbitRadiusMassFound
G 196-3 b9081.5 years from Kepler’s law350.000 AU12 R⊕ estimated8263.5 M⊕Imaging, 2024

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 3,517 K, 0.038 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.20 to 0.39 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 71 years ago, within living memory.

Nearest systems to it

Also found by European Space Agency (ESA) Gaia Satellite

Sources

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