Finding Earth 2.0
HIP 9618

HIP 9618 c

Rank #1354 of the ranked catalogue · Discovered by Transit in 2023

HZ 0%upper limit

0.102

Earth-2.0 index

0.380

Earth Similarity Index

0%

Habitable-zone probability

3.43 R⊕

Radius

Planet

Mass7.000 M⊕upper limit
Bulk density1.000 g/cm³
Orbital period52.5636 days
Semi-major axis0.26900 au
Eccentricity0.000
Incident flux11.700 S⊕
Equilibrium temperature470.1 K
Transit-time σ at 203016.5 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation3.98 masReflected-light contrast 2.82e-8 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