Finding Earth 2.0
HIP 9618

HIP 9618 b

Rank #2535 of the ranked catalogue · Discovered by Transit in 2023

HZ 0%upper limit

0.092

Earth-2.0 index

0.267

Earth Similarity Index

0%

Habitable-zone probability

3.83 R⊕

Radius

Planet

Mass8.300 M⊕upper limit
Bulk density0.810 g/cm³
Orbital period20.7729 days
Semi-major axis0.14500 au
Eccentricity0.000
Incident flux40.300 S⊕
Equilibrium temperature640.5 K
Transit-time σ at 203012.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation2.15 masReflected-light contrast 1.21e-7 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources4 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage92%0% median composite-to-default difference over shared parameters.

Host star & system

HostHIP 9618
Spectral typeG
Effective temperature5649 K
Radius0.959 R☉
Mass0.942 M☉
Distance67.5 pc / 220.3 ly
DiscoveryTransit, 2023