GJ 433

Planetary system · 29.6 light-years away · also HIP 56528

GJ 433 is 29.6 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this M2V star; the first was found in 2013 by radial velocity (La Silla Observatory).

Fly there in 3D

Worth knowing

GJ 433 b goes round its star every 7.37 days, 12 times as often as Mercury goes round the Sun.

The star

Spectral typeM2V
Surface temperature3,461 K
Mass0.48 solar masses
Radius0.5 solar radii
Luminosity0.02 times the Sun
Apparent magnitude9.81
Distance from the Sun29.6 light-years (9.1 parsecs)
Position (J2000)RA 173.8619°, Dec -32.5436°
ConstellationHydra

Planets (3)

PlanetYearOrbitRadiusMassFound
GJ 433 b7.37 days0.0620 AU2.33 R⊕ estimated6.043 M⊕ minimumRadial Velocity, 2013
GJ 433 d36.1 days0.178 AU2.14 R⊕ estimated5.223 M⊕ minimumRadial Velocity, 2020
GJ 433 c13.9 years4.819 AU6.27 R⊕ estimated32.422 M⊕ minimumRadial Velocity, 2014

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.

Sources

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