Finding Earth 2.0
HIP 77900

HIP 77900 b

Discovered by Imaging in 2024

unknownmeasured

Earth-2.0 index

Earth Similarity Index

Habitable-zone probability

12.10 R⊕

Radius

Planet

Mass6674.396 M⊕measured
Bulk density20.700 g/cm³
Orbital period— days
Semi-major axis3319.00000 au
Eccentricity
Incident flux— S⊕
Equilibrium temperature2507.0 K
Maximum angular separation22000.24 masReflected-light contrast 0 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources3 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage57%0% median composite-to-default difference over shared parameters.

Host star & system

HostHIP 77900
Spectral typeB
Effective temperature13646 K
Radius— R☉
Mass— M☉
Distance150.9 pc / 492.0 ly
DiscoveryImaging, 2024