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TOI-1266 c is a Super-Earth exoplanet (a planet larger than Earth but smaller than Neptune), about 2.0 times the radius of Earth. It has an equilibrium temperature of 346 K (73°C). The planet completes one orbit around its star every 18.8 Earth days. It was discovered in 2020 using the transit method. It orbits the M-type star TOI-1266, located approximately 36 parsecs (117 light-years) from Earth.
2020
Discovered
3.2
Earth Masses
1.98
Earth Radii
346
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,020
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period18.8027 days
Semi-Major Axis0.105 AU
Eccentricity0.071
Inclination89.17 deg
Physical Properties
Mass (Jupiter)0.01 MJ
Mass (Earth)3.17 M⊕
Radius (Jupiter)0.1766 RJ
Radius (Earth)1.98 R⊕
Density2.25 g/cm3
Eq. Temperature346 K
Planetary Extremes
Where TOI-1266 c sits on the spectrum of all known exoplanets.
Mass3.2 M⊕
FeatherweightColossus
Radius1.98 R⊕
TinyEnormous
Temperature346 K
FrozenInferno
Year Length18.8 days
LightningGlacial
Density2.25 g/cm³
FluffyIron-dense
Star Distance0.105 AU
ScorchedFrozen exile
Star System View
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Size Comparison
1.98x Earth's radius (0.18x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)TOI-1266 c: 18.8 Earth days (0.105 AU)
Host Star: TOI-1266
Spectral TypeM2
Effective Temperature3,563 K
Mass0.437 M☉
Radius0.4232 R☉
Size vs Sun2.36x smaller
Luminosity0.0263 L☉
Luminosity vs Sun38.0x dimmer
Metallicity [Fe/H]-0.109
Distance (pc)36.0118 pc
Distance (ly)117.5 light-years
What If You Lived Here?
56.6 kg
Your weight (from 70 kg)
0.81g
Light
Noticeably easier to move. You could jump much higher.
18.8 Earth days
Year length
Red sunrise
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