CONFIRMED EXOPLANET
·
Sub-Neptune
★ TEMPERATE HABITABLE ZONE
55 Cnc B c
Orbits Host Star: 55 Cnc B
(Type M4.5 V)
· Distance: 40.700 Light-Years (12.477 pc)
Planetary Radius
2.160 R⊕
Planetary Mass
5.300 M⊕
Surface Gravity
1.14 g / g⊕
Equilibrium Temp
230K (-43°C)
Orbital Period
33.747 days
Discovery Year
2025 (Radial Velocity)
Habitability Assessment
✓ Classified as a Temperate Habitable Zone Candidate.
With an estimated equilibrium temperature of 230 K (-43°C) and a radius of 2.160 R⊕, 55 Cnc B c falls within the conservative empirical boundary where a solid rocky surface could sustain liquid surface water under suitable atmospheric greenhouse conditions.
Discovery Facility: Mauna Kea Observatory.
Other Worlds in the 55 Cnc B System (1)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS