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TOI-561 e is a Neptune-like exoplanet (an ice giant with a thick atmosphere), about 2.5 times the radius of Earth. It has an equilibrium temperature of 416 K (143°C). The planet completes one orbit around its star every 77.1 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
12.4
Earth Masses
2.52
Earth Radii
416
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,020
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period77.144 days
Semi-Major Axis0.33 AU
Eccentricity0.074
Inclination89.864 deg
Physical Properties
Mass (Jupiter)0.039 MJ
Mass (Earth)12.4 M⊕
Radius (Jupiter)0.2246 RJ
Radius (Earth)2.517 R⊕
Density4.3 g/cm3
Eq. Temperature416 K
Insolation Flux4.89 S⊕
Planetary Extremes
Where TOI-561 e sits on the spectrum of all known exoplanets.
Mass12.4 M⊕
FeatherweightColossus
Radius2.52 R⊕
TinyEnormous
Temperature416 K
FrozenInferno
Year Length77.1 days
LightningGlacial
Density4.30 g/cm³
FluffyIron-dense
Star Distance0.330 AU
ScorchedFrozen exile
Star System View
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Size Comparison
2.52x Earth's radius (0.22x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)TOI-561 e: 77.1 Earth days (0.330 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?
137.0 kg
Your weight (from 70 kg)
1.96g
Heavy
Every step takes effort. Climbing stairs is exhausting.
77.1 Earth days
Year length
Unknown sunrise
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