HD 12661 b

A confirmed exoplanet orbiting HD 12661.

Compared with Earth

Mass
About 772 times Earth's mass.
Year
A year here lasts about 263 Earth days.

Planet

Radius
Unknown
Mass
772.3 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
262.7 days
Average distance from its star
0.84 AU

Star

Host star
HD 12661
Spectral class
G — sun-like
Surface temperature
5,645 K
Radius
1.2 × Sun
Mass
1.2 × Sun
Age
Unknown

System

Distance from Earth
123.4 light-years (37.85 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2000
Method
Radial Velocity
Facility
Multiple Observatories

Data from the NASA Exoplanet Archive, synced October 14, 2026.