psi1 Dra B b

A confirmed exoplanet orbiting psi1 Dra B.

Compared with Earth

Mass
About 486 times Earth's mass.
Year
A year here lasts about 8.5 Earth years.

Planet

Radius
Unknown
Mass
486.3 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
3,117 days
Average distance from its star
4.43 AU

Star

Host star
psi1 Dra B
Spectral class
F — yellow-white
Surface temperature
6,212 K
Radius
Unknown
Mass
1.19 × Sun
Age
3.3 billion years

System

Distance from Earth
74.1 light-years (22.72 parsecs)
Stars in system
3
Known planets
1

Discovery

Year
2015
Method
Radial Velocity
Facility
McDonald Observatory

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