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HIP 77900 b is a Gas Giant exoplanet (a massive planet composed primarily of hydrogen and helium) with a mass of 6674.4 Earth masses. Its scorching equilibrium temperature of 2507 K (2234°C) makes it far too hot for liquid water. It was discovered in 2024 using the imaging method. It orbits the star HIP 77900, located approximately 151 parsecs (492 light-years) from Earth.
2024
Discovered
6674.4
Earth Masses
2507
Temperature (K)
Discovery Information
Discovery MethodDirect Imaging
Discovery Year2,024
Discovery FacilityEuropean Space Agency (ESA) Gaia Satellite
Orbital Properties
Semi-Major Axis3,319 AU
Physical Properties
Mass (Jupiter)21 MJ
Mass (Earth)6,674.3965 M⊕
Eq. Temperature2,507 K
Planetary Extremes
Where HIP 77900 b sits on the spectrum of all known exoplanets.
Mass6674.4 M⊕
FeatherweightColossus
Temperature2507 K
FrozenInferno
Star Distance3319.000 AU
ScorchedFrozen exile
Planets in the HIP 77900 System
Host Star: HIP 77900
Distance (pc)150.862 pc
Distance (ly)492.0 light-years
Star System View
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