GJ 3341

Planetary system · 77.0 light-years away

GJ 3341 is 77.0 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M2.5 star; the first was found in 2015 by radial velocity (La Silla Observatory).

Fly there in 3D

Worth knowing

GJ 3341 b goes round its star every 14.2 days, 6 times as often as Mercury goes round the Sun.

The star

Spectral typeM2.5
Surface temperature3,526 K
Mass0.47 solar masses
Radius0.439 solar radii
Luminosity0.02897 times the Sun
Apparent magnitude12.062
Distance from the Sun77.0 light-years (23.6 parsecs)
Position (J2000)RA 78.9471°, Dec -31.2948°
ConstellationColumba

Planets (1)

PlanetYearOrbitRadiusMassFound
GJ 3341 b14.2 days0.0890 AU2.46 R⊕ estimated6.6 M⊕ minimumRadial Velocity, 2015

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 3,526 K, 0.029 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.18 to 0.34 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 77 years ago, within living memory.

Nearest systems to it

Also found by La Silla Observatory

Sources

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