Back to Catalog
TOI-1266 b 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 415 K (142°C). The planet completes one orbit around its star every 10.9 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
4.5
Earth Masses
2.52
Earth Radii
415
Temperature (K)
Discovery Information
Discovery MethodTransit
Discovery Year2,020
Discovery FacilityTransiting Exoplanet Survey Satellite (TESS)
Orbital Properties
Orbital Period10.8945 days
Semi-Major Axis0.073 AU
Eccentricity0.039
Inclination89.13 deg
Physical Properties
Mass (Jupiter)0.014 MJ
Mass (Earth)4.46 M⊕
Radius (Jupiter)0.2248 RJ
Radius (Earth)2.52 R⊕
Density1.54 g/cm3
Eq. Temperature415 K
Planetary Extremes
Where TOI-1266 b sits on the spectrum of all known exoplanets.
Mass4.5 M⊕
FeatherweightColossus
Radius2.52 R⊕
TinyEnormous
Temperature415 K
FrozenInferno
Year Length10.9 days
LightningGlacial
Density1.54 g/cm³
FluffyIron-dense
Star Distance0.073 AU
ScorchedFrozen exile
Star System View
Loading 3D view...
Size Comparison
2.52x Earth's radius (0.23x Jupiter)
Orbit Comparison
Earth: 365.25 days (1 AU)TOI-1266 b: 10.9 Earth days (0.073 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?
49.2 kg
Your weight (from 70 kg)
0.70g
Light
Noticeably easier to move. You could jump much higher.
10.9 Earth days
Year length
Red sunrise
Test Your Knowledge
Related Research
Loading papers...