HIP 56998 · K4/5V
HD 101581 c
Rank #1340 of the ranked catalogue · Discovered by Transit in 2025
HZ 0%inferred
0.102
Earth-2.0 index
0.413
Earth Similarity Index
0%
Habitable-zone probability
0.99 R⊕
Radius
Planet
Mass0.937 M⊕inferred
Bulk density5.310 g/cm³
Orbital period6.2040 days
Semi-major axis0.05730 au
Eccentricity—
Incident flux52.000 S⊕
Equilibrium temperature682.6 K
Transit-time σ at 2030311.8 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation4.48 masReflected-light contrast 5.18e-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 coverage82%0% median composite-to-default difference over shared parameters.
Host star & system
HostHIP 56998
Spectral typeK4/5V
Effective temperature4675 K
Radius0.630 R☉
Mass0.653 M☉
Distance12.8 pc / 41.7 ly
DiscoveryTransit, 2025