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TOI-561 c is a Neptune-like exoplanet (an ice giant with a thick atmosphere), about 2.9 times the radius of Earth. It has an equilibrium temperature of 802 K (529°C). The planet completes one orbit around its star every 10.8 Earth days. It was discovered in 2020 using the transit method. It orbits the star TOI-561, located approximately 86 parsecs (280 light-years) from Earth.
2020
Discovered
5.9
Earth Masses
2.87
Earth Radii
802
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,020
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period10.7788 days
Semi-Major Axis0.0889 AU
Eccentricity0.023
Inclination89.61 deg
Physical Properties
Mass (Jupiter)0.0187 MJ
Mass (Earth)5.93 M⊕
Radius (Jupiter)0.2556 RJ
Radius (Earth)2.865 R⊕
Density1.3 g/cm3
Eq. Temperature802 K
Insolation Flux67.5 S⊕
Planetary Extremes
Where TOI-561 c sits on the spectrum of all known exoplanets.
Mass5.9 M⊕
FeatherweightColossus
Radius2.87 R⊕
TinyEnormous
Temperature802 K
FrozenInferno
Year Length10.8 days
LightningGlacial
Density1.30 g/cm³
FluffyIron-dense
Star Distance0.089 AU
ScorchedFrozen exile
Star System View
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Size Comparison
2.87x Earth's radius (0.26x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)TOI-561 c: 10.8 Earth days (0.089 AU)
Host Star: TOI-561
Mass0.806 M☉
Radius0.843 R☉
Size vs Sun1.19x smaller
Distance (pc)85.799 pc
Distance (ly)279.8 light-years
What If You Lived Here?
50.6 kg
Your weight (from 70 kg)
0.72g
Light
Noticeably easier to move. You could jump much higher.
10.8 Earth days
Year length
Unknown sunrise
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