HD 183579 b

A confirmed exoplanet orbiting HD 183579.

Compared with Earth

Size
About 3.5 times Earth's width.
Mass
About 20 times Earth's mass.
Temperature
About 479 °C (894 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 17 Earth days.

Planet

Radius
3.49 × Earth
Mass
20.4 × Earth
Density
2.65 g/cm³
Equilibrium temperature
752 K
Starlight received
Unknown
Orbital period
17.47 days
Average distance from its star
0.1322 AU

Star

Host star
HD 183579
Spectral class
G — sun-like
Surface temperature
5,784 K
Radius
0.96 × Sun
Mass
0.996 × Sun
Age
3.1 billion years

System

Distance from Earth
186.8 light-years (57.27 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2021
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

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