HATS-4 b

A confirmed exoplanet orbiting HATS-4.

Compared with Earth

Size
About 11 times Earth's width.
Mass
About 420 times Earth's mass.
Temperature
About 1,042 °C (1,907 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 2.5 Earth days.

Planet

Radius
11.43 × Earth
Mass
420.5 × Earth
Density
1.55 g/cm³
Equilibrium temperature
1,315 K
Starlight received
Unknown
Orbital period
2.517 days
Average distance from its star
0.0362 AU

Star

Host star
HATS-4
Spectral class
G — sun-like
Surface temperature
5,403 K
Radius
0.925 × Sun
Mass
1.001 × Sun
Age
2.1 billion years

System

Distance from Earth
1,358 light-years (416.5 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2014
Method
Transit
Facility
HATSouth

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