Finding Earth 2.0
TOI-1278 · M0 V

TOI-1278 b

Rank #1738 of the ranked catalogue · Discovered by Transit in 2021

HZ 0%measured

0.098

Earth-2.0 index

0.283

Earth Similarity Index

0%

Habitable-zone probability

12.22 R⊕

Radius

Planet

Mass5879.825 M⊕measured
Bulk density18.000 g/cm³
Orbital period14.4757 days
Semi-major axis0.09500 au
Eccentricity0.013
Incident flux6.540 S⊕
Equilibrium temperature406.5 K
Transit-time σ at 203079.3 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation1.26 masReflected-light contrast 2.87e-6 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 coverage83%0% median composite-to-default difference over shared parameters.

Host star & system

HostTOI-1278
Spectral typeM0 V
Effective temperature3799 K
Radius0.573 R☉
Mass0.540 M☉
Distance75.6 pc / 246.5 ly
DiscoveryTransit, 2021