GJ 3473 b
Orbiting GJ 3473
GJ 3473 b is an exoplanet orbiting the star GJ 3473, discovered in 2020 using the Transit method. It is a Earth-sized world.
Radius
1.26
Earth radii
Mass
1.86
Earth masses
Orbital Period
1.2
days
Distance
27.4
parsecs
Equilibrium Temp
773
K
Radius (Earth radii)
1.26
Mass (Earth masses)
1.86
Measured
Equilibrium Temperature
773 K
Parameter source: Kemmer et al. 2020
Orbital Period
1.198+0.000−0.000days
Semi-Major Axis
0.0159+0.0006−0.0006au
Planet Mass (Earth masses)
1.86+0.30−0.30
Planet Mass (Jupiter masses)
0.0059+0.0009−0.0009
Eccentricity
0.0000
Radial Velocity Semi-Amplitude
2.21+0.35−0.35m/s
Distance from Earth
27.4 pc (~89 ly)
Spectral Type
Unknown
Temperature
3347 K
Mass (Solar)
0.36 M☉
Radius (Solar)
0.36 R☉
Luminosity
-1.82 log L☉
Planets in System
2
Stars in System
2
Coordinates (RA, Dec)
120.5936°, 3.3372°
Discovery Method
Transit
Discovery Year
2020
Source ID: GJ 3473 b
GJ 3473 b orbits GJ 3473 and was reported in 2020 and was detected with the Transit method.
Published measurements list a radius of 1.26 Earth radii, a mass of 1.86 Earth masses, an orbital period of 1.2 days, and an equilibrium temperature near 773 K.
Catalog data places the system at about 27.4 parsecs from Earth and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open GJ 3473More planets in this system