Finding Earth 2.0
ZTF J1230-2655

ZTF J1230-2655 b

Discovered by Transit in 2025

unknownupper limit

Earth-2.0 index

0.032

Earth Similarity Index

Habitable-zone probability

13.79 R⊕

Radius

Planet

Mass7024.008 M⊕upper limit
Bulk density14.779 g/cm³
Orbital period0.2360 days
Semi-major axis— au
Eccentricity
Incident flux17889.745 S⊕
Equilibrium temperature2939.8 K
Transit-time σ at 203012.0 minLinear propagation of published epoch and period errors; not a ranking input.
Maximum angular separation0.04 masReflected-light contrast 7.91e-4 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 coverage78%0% median composite-to-default difference over shared parameters.

Host star & system

HostZTF J1230-2655
Spectral typeB
Effective temperature10000 K
Radius0.012 R☉
Mass0.646 M☉
Distance186.7 pc / 608.9 ly
DiscoveryTransit, 2025