Exoplanet
WASP-1 b
1,282.03 light-years
- Discovery
- Transit · 2007
- Radius
- 16.623 (+0.269 / −0.381) Earth radii
- Mass
- 271.415 (+18.116 / −16.526) Earth masses
- Orbital period
- 2.5199 (+5 × 10⁻⁷ / −5 × 10⁻⁷) days
- Semi-major axis
- 0.0389 (+5.3 × 10⁻⁴ / −7.3 × 10⁻⁴) AU
- Equilibrium temperature
- 1,812 (+14 / −14) K
- Mass provenance
- Mass
Measurements may come from different studies and need not form one self-consistent model. “Msini” is a minimum mass; a mass inferred from radius is an estimate. Equilibrium temperature is a model estimate, not a measured surface temperature or evidence of habitability.
NASA archive record and references ↗
Snapshot retrieved: 2026-10-11T04:15:07.688253+00:00