Exoplanet CatalogExoplanet HD 128717 b
Radius12.10 R⊕Earth = 1
Mass6,293.0 M⊕Earth = 1
Orbital period3,420.00 d
Equilibrium temp.152 K≈ -121 °C
Distance240.2 ly
Discovered2025Astrometry
Size compared (radius, Earth = 1)
1.00
3.88
11.21
12.10
Where it sits among all planets (percentile)
76%
99%
97%
4%
21%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of HD 128717 (1)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| HD 128717 b | 3,420.00 | 12.10 | 6,293.0 | 152 | 2025 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| HD 128717 | – | 6,210 | 1.25 | 1.21 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.