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GJ 3378 b
Orbiting GJ 3378, discovered in 2026 (7531) by Mauna Kea Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 2.30 M⊕ |
| Orbital period | 21.45 Earth days (~0.1 Earth years) |
| Orbital eccentricity | 0.000 |
| Equilibrium temperature | 272 K (-1 °C) |
Host star — GJ 3378
| Temperature | 3340 K (3067 °C) |
| Radius | 0.28 R☉ |
| Mass | 0.26 M☉ |
Location
| Distance from Earth | 7.7 pc (~25 light-years) |
| Right ascension / Declination | 90.2951 / 59.5932 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.