HAT-P-37 b

A confirmed exoplanet orbiting HAT-P-37.

Compared with Earth

Size
About 13 times Earth's width.
Mass
About 372 times Earth's mass.
Temperature
About 998 °C (1,828 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 2.8 Earth days.

Planet

Radius
13.2 × Earth
Mass
371.5 × Earth
Density
0.89 g/cm³
Equilibrium temperature
1,271 K
Starlight received
Unknown
Orbital period
2.797 days
Average distance from its star
0.0379 AU

Star

Host star
HAT-P-37
Spectral class
G — sun-like
Surface temperature
5,500 K
Radius
0.877 × Sun
Mass
0.929 × Sun
Age
Unknown

System

Distance from Earth
1,274 light-years (390.6 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2011
Method
Transit
Facility
HATNet

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