Finding Earth 2.0
HD 219828 · G0 IV

HD 219828 c

Rank #2147 of the ranked catalogue · Discovered by Radial Velocity in 2016

HZ 0%measured

0.095

Earth-2.0 index

0.255

Earth Similarity Index

0%

Habitable-zone probability

12.20 R⊕

Radius

Planet

Mass5102.417 M⊕measured
Bulk density15.400 g/cm³
Orbital period4789.8730 days
Semi-major axis5.65700 au
Eccentricity0.811
Incident flux0.082 S⊕
Equilibrium temperature136.1 K
Maximum angular separation77.37 masReflected-light contrast 8.07e-10 at Aᵍ = 0.30 and Lambertian quadrature.
Composite parameter sources6 · mixedThe archive may select different publications for different parameters; mixed-source is disclosed, not automatically penalised.
Default-solution coverage50%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 219828
Spectral typeG0 IV
Effective temperature5891 K
Radius1.560 R☉
Mass1.040 M☉
Distance73.1 pc / 238.5 ly
DiscoveryRadial Velocity, 2016