Finding Earth 2.0
HR 858 · F6 V

HR 858 d

Rank #1944 of the ranked catalogue · Discovered by Transit in 2019

HZ 0%measured

0.097

Earth-2.0 index

0.251

Earth Similarity Index

0%

Habitable-zone probability

2.00 R⊕

Radius

Planet

Mass7.100 M⊕measured
Bulk density4.900 g/cm³
Orbital period11.2305 days
Semi-major axis0.10460 au
Eccentricity0.000
Incident flux217.000 S⊕
Equilibrium temperature975.6 K
Transit-time σ at 203023.9 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation3.27 masReflected-light contrast 6.35e-8 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