Finding Earth 2.0
HD 21693 · G8 V

HD 21693 c

Rank #1319 of the ranked catalogue · Discovered by Radial Velocity in 2019

HZ 0%M sin i

0.102

Earth-2.0 index

0.393

Earth Similarity Index

0%

Habitable-zone probability

4.34 R⊕

Radius

Planet

Mass17.370 M⊕M sin i
Bulk density1.170 g/cm³
Orbital period53.7357 days
Semi-major axis0.25860 au
Eccentricity0.070
Incident flux9.271 S⊕
Equilibrium temperature443.6 K
Maximum angular separation7.78 masReflected-light contrast 4.89e-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 coverage58%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 21693
Spectral typeG8 V
Effective temperature5430 K
Radius0.914 R☉
Mass0.800 M☉
Distance33.3 pc / 108.5 ly
DiscoveryRadial Velocity, 2019