55 Cancri
Listed as 55 Cnc in the NASA Exoplanet Archive.
55 Cancri is a G8 V star 41.0 light years away with 5 known planets. The first was found in 1996 and the latest in 2007. It has a companion star.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| 55 Cnc e | 0.7365 days | 0.01544 AU | 1.875 | 7.99 | 2004 | Radial Velocity |
| 55 Cnc b | 14.65 days | 0.118 AU | at least 276 | 1996 | Radial Velocity | |
| 55 Cnc c | 44.39 days | 0.247 AU | at least 56.6 | 2004 | Radial Velocity | |
| 55 Cnc f | 260.6 days | 0.802 AU | at least 48.5 | 2007 | Radial Velocity | |
| 55 Cnc d | 13.14 years | 5.6 AU | at least 1,214 | 2002 | Radial Velocity |
"At least" is a minimum mass. Radial velocity can only measure mass times the sine of the orbit's tilt.
Star
- Spectral type G8 V
- 5,198 K surface temperature
- 1.015 times the mass of the Sun
- 0.98 times the radius of the Sun
Data from the NASA Exoplanet Archive, as of October 3, 2026. In the 3D view sizes and distances are compressed and every orbit is drawn in the same plane. Where each planet sits along its orbit is made up.