GJ 3090 b
Orbiting GJ 3090
GJ 3090 b is an exoplanet orbiting the star GJ 3090, discovered in 2022 using the Transit method. It is a Super-Earth world.
Radius
2.18
Earth radii
Mass
4.52
Earth masses
Orbital Period
2.9
days
Distance
22.5
parsecs
Equilibrium Temp
723
K
What these measurements mean
These comparisons use the reported catalog values. They are interpretations and calculations, not additional observations.
- Size in perspective
- At the reported radius, a spherical model gives about 10.4 times Earth's volume. This is the radius ratio cubed, not a mass comparison. The radius alone cannot establish whether this world has a rocky surface or a thick gaseous envelope.
- A year on this world
- A 365.25-day Earth year spans about 128 of these orbits. This comparison uses the reported orbital period. It does not measure the planet's rotation or the length of its day.
- What the mass can tell you
- Mass describes how much material the planet contains. Inspect the published uncertainty and reference before combining it with a radius to estimate density. Catalog values can come from different studies.
- Temperature has limits
- Equilibrium temperature describes a model of absorbed and emitted energy, not a measured surface temperature. Atmosphere and reflectivity affect the interpretation. This value alone cannot establish liquid water, a habitable surface, or life.
Radius (Earth radii)
2.18
Mass (Earth masses)
4.52
Measured
Equilibrium Temperature
723 K
Parameter source: Lamontagne et al. 2026
Orbital Period
2.853+0.000−0.000days
Semi-Major Axis
0.0316+0.0003−0.0003au
Planet Mass (Earth masses)
4.52+0.47−0.47
Planet Mass (Jupiter masses)
0.0142+0.0015−0.0015
Eccentricity
<0.25
Argument of Periastron
90.0deg
Radial Velocity Semi-Amplitude
3.15+0.32−0.32m/s
Distance from Earth
22.5 pc (~73 ly)
Spectral Type
M2 V
Temperature
3707 K
Mass (Solar)
0.52 M☉
Radius (Solar)
0.52 R☉
Luminosity
-1.34 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
20.4384°, -46.7147°
Discovery Method
Transit
Discovery Year
2022
Source ID: GJ 3090 b
GJ 3090 b orbits GJ 3090 and was reported in 2022 and was detected with the Transit method.
Published measurements list a radius of 2.18 Earth radii, a mass of 4.52 Earth masses, an orbital period of 2.85 days, and an equilibrium temperature near 723 K.
Catalog data places the system at about 22.5 parsecs from Earth, a host star classified as M2 V, 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 3090More planets in this system