Finding Earth 2.0
HU Aqr

HU Aqr AB c

Discovered by Eclipse Timing Variations in 2011

unknownM sin i / sin i

Earth-2.0 index

Earth Similarity Index

Habitable-zone probability

12.90 R⊕

Radius

Planet

Mass1430.235 M⊕M sin i / sin i
Bulk density3.660 g/cm³
Orbital period4368.0000 days
Semi-major axis5.40000 au
Eccentricity0.510
Incident flux— S⊕
Equilibrium temperature— K
Maximum angular separation28.10 masReflected-light contrast 9.91e-10 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 coverage56%0% median composite-to-default difference over shared parameters.

Host star & system

HostHU Aqr
Spectral typeG
Effective temperature5952 K
Radius— R☉
Mass0.880 M☉
Distance192.2 pc / 626.9 ly
DiscoveryEclipse Timing Variations, 2011