Upsilon Andromedae
Listed as ups And in the NASA Exoplanet Archive.
Upsilon Andromedae is an F8 V star 43.7 light years away with 3 known planets. The first was found in 1996 and the latest in 1999. It has a companion star.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| ups And b | 4.617 days | 0.05922 AU | at least 218.5 | 1996 | Radial Velocity | |
| ups And c | 241.3 days | 0.8278 AU | at least 629.6 | 1999 | Radial Velocity | |
| ups And d | 3.495 years | 2.513 AU | at least 1,313 | 1999 | 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 F8 V
- 6,157 K surface temperature
- 1.3 times the mass of the Sun
- 1.56 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.