Exoplanet CatalogExoplanet 55 Cnc e
Radius1.88 R⊕Earth = 1
Mass8.0 M⊕Earth = 1
Orbital period0.74 d
Equilibrium temp.1,958 K≈ 1,685 °C
Distance41.0 ly
Discovered2004Radial Velocity
Size compared (radius, Earth = 1)
1.00
1.88
3.88
11.21
Where it sits among all planets (percentile)
25%
45%
2%
98%
3%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of 55 Cnc (5)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| 55 Cnc e | 0.74 | 1.88 | 8.0 | 1,958 | 2004 |
| 55 Cnc b | 14.65 | 13.90 | 264.0 | 700 | 1996 |
| 55 Cnc c | 44.39 | 8.51 | 54.5 | 499 | 2004 |
| 55 Cnc f | 260.58 | 7.59 | 44.8 | 277 | 2007 |
| 55 Cnc d | 4,799.00 | 13.00 | 1,232.5 | 105 | 2002 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| 55 Cnc | G8 V | 5,172 | 0.94 | 0.90 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.