Finding Earth 2.0
HD 1666 · F7 V

HD 1666 b

Rank #1439 of the ranked catalogue · Discovered by Radial Velocity in 2015

HZ 0%M sin i

0.101

Earth-2.0 index

0.381

Earth Similarity Index

0%

Habitable-zone probability

12.70 R⊕

Radius

Planet

Mass2040.000 M⊕M sin i
Bulk density5.470 g/cm³
Orbital period270.0000 days
Semi-major axis0.94000 au
Eccentricity0.630
Incident flux6.078 S⊕
Equilibrium temperature399.1 K
Maximum angular separation7.97 masReflected-light contrast 3.17e-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 coverage67%0% median composite-to-default difference over shared parameters.

Host star & system

HostHD 1666
Spectral typeF7 V
Effective temperature6317 K
Radius1.930 R☉
Mass1.500 M☉
Distance117.9 pc / 384.6 ly
DiscoveryRadial Velocity, 2015