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HD 18438 b
Orbiting HD 18438, discovered in 2023 (7528) by Bohyunsan Optical Astronomical Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 6674.40 M⊕ |
| Orbital period | 803.00 Earth days (~2.2 Earth years) |
| Orbital eccentricity | 0.100 |
| Equilibrium temperature | Unknown |
Host star — HD 18438
| Temperature | 3860 K (3587 °C) |
| Radius | 88.47 R☉ |
| Mass | 1.84 M☉ |
Location
| Distance from Earth | 224.1 pc (~731 light-years) |
| Right ascension / Declination | 46.5318 / 79.4186 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.