Finding Earth 2.0
HR 858 · F6 V

HR 858 c

Rank #4107 of the ranked catalogue · Discovered by Transit in 2019

HZ 0%upper limit

0.079

Earth-2.0 index

0.187

Earth Similarity Index

0%

Habitable-zone probability

1.98 R⊕

Radius

Planet

Mass3.800 M⊕upper limit
Bulk density2.900 g/cm³
Orbital period5.9739 days
Semi-major axis0.06870 au
Eccentricity0.000
Incident flux512.000 S⊕
Equilibrium temperature1209.2 K
Transit-time σ at 203015.8 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation2.15 masReflected-light contrast 1.44e-7 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 coverage92%0% median composite-to-default difference over shared parameters.

Host star & system

HostHR 858
Spectral typeF6 V
Effective temperature6354 K
Radius1.258 R☉
Mass1.204 M☉
Distance32.0 pc / 104.3 ly
DiscoveryTransit, 2019