CONFIRMED EXOPLANET
·
Sub-Neptune
HD 21520 b
Orbits Host Star: HD 21520
· Distance: 258.300 Light-Years (79.208 pc)
Planetary Radius
2.697 R⊕
Planetary Mass
17.700 M⊕
Surface Gravity
2.43 g / g⊕
Equilibrium Temp
637K (+364°C / +687°F)
Orbital Period
25.129 days
Discovery Year
2024 (Transit)
Habitability Assessment
⚠️ Thermal Exclusions: High equilibrium temperature (637 K · +364°C / +687°F) places this world well interior to the runaway greenhouse threshold.
Discovery Facility: Transiting Exoplanet Survey Satellite (TESS).
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS