← Back to Exoplanet Archive
HD 219666 b
Orbiting HD 219666, discovered in 2018 (7523) by Transiting Exoplanet Survey Satellite (TESS) via the Transit method.
Planet
| Radius | 4.90 R⊕ |
| Mass | 17.60 M⊕ |
| Orbital period | 6.03 Earth days (~0.0 Earth years) |
| Orbital eccentricity | 0.050 |
| Equilibrium temperature | 1076 K (803 °C) |
Host star — HD 219666
| Temperature | 5540 K (5267 °C) |
| Radius | 1.06 R☉ |
| Mass | 1.02 M☉ |
Location
| Distance from Earth | 94.2 pc (~307 light-years) |
| Right ascension / Declination | 349.5593 / -56.9040 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.