HD 219134 f

A confirmed exoplanet orbiting HD 219134.

Compared with Earth

Size
About 1.3 times Earth's width.
Mass
About 7.3 times Earth's mass.
Temperature
About 249 °C (481 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 12 times the starlight Earth gets from the Sun.
Year
A year here lasts about 23 Earth days.

Planet

Radius
1.31 × Earth
Mass
7.3 × Earth
Density
Unknown
Equilibrium temperature
522.6 K
Starlight received
12.38 × Earth
Orbital period
22.72 days
Average distance from its star
0.1463 AU

Star

Host star
HD 219134
Spectral class
K — orange dwarf
Surface temperature
4,699 K
Radius
0.778 × Sun
Mass
0.81 × Sun
Age
11 billion years

System

Distance from Earth
21.3 light-years (6.531 parsecs)
Stars in system
1
Known planets
6

Discovery

Year
2015
Method
Radial Velocity
Facility
Multiple Observatories

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