HATS-57 b

A confirmed exoplanet orbiting HATS-57.

Compared with Earth

Size
About 13 times Earth's width.
Mass
About 1,000 times Earth's mass.
Temperature
About 1,140 °C (2,084 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 2.4 Earth days.

Planet

Radius
12.77 × Earth
Mass
1,000 × Earth
Density
2.65 g/cm³
Equilibrium temperature
1,413 K
Starlight received
Unknown
Orbital period
2.351 days
Average distance from its star
0.03493 AU

Star

Host star
HATS-57
Spectral class
G — sun-like
Surface temperature
5,587 K
Radius
0.96 × Sun
Mass
1.026 × Sun
Age
2.5 billion years

System

Distance from Earth
911.6 light-years (279.5 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2019
Method
Transit
Facility
HATSouth

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