2MASS J0249-0557 c
Orbiting 2MASS J0249-0557 A
2MASS J0249-0557 c is an exoplanet orbiting the star 2MASS J0249-0557 A, discovered in 2018 using the Imaging method. It is a Jupiter-sized world.
Radius
17.37
Earth radii
Mass
3616.89
Earth masses
Distance
66.1
parsecs
Equilibrium Temp
1723
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 5,240 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.
- 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)
17.37
Mass (Earth masses)
3616.89
Measured
Equilibrium Temperature
1723 K
Parameter source: Liu et al. 2026
Planet Mass (Earth masses)
3616.89+244.73−244.73
Planet Mass (Jupiter masses)
11.3800+0.7700−0.7700
Distance from Earth
66.1 pc (~215 ly)
Spectral Type
M6 V
Temperature
Unknown
Mass (Solar)
0.05 M☉
Radius (Solar)
Unknown
Luminosity
-2.59 log L☉
Planets in System
1
Stars in System
2
Coordinates (RA, Dec)
42.4852°, -5.9600°
Discovery Method
Imaging
Discovery Year
2018
Source ID: 2MASS J0249-0557 c
2MASS J0249-0557 c orbits 2MASS J0249-0557 A and was reported in 2018 and was detected with the Imaging method.
Published measurements list a radius of 17.37 Earth radii, a mass of 3,616.89 Earth masses, and an equilibrium temperature near 1,723 K.
Catalog data places the system at about 66.1 parsecs from Earth, a host star classified as M6 V, and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open 2MASS J0249-0557 A