TrES-1 b

A confirmed exoplanet orbiting TrES-1.

Compared with Earth

Size
About 13 times Earth's width.
Mass
About 267 times Earth's mass.
Year
A year here lasts about 3 Earth days.

Planet

Radius
12.67 × Earth
Mass
267 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
3.03 days
Average distance from its star
Unknown

Star

Host star
TrES-1
Spectral class
K — orange dwarf
Surface temperature
5,230 K
Radius
0.85 × Sun
Mass
1.04 × Sun
Age
Unknown

System

Distance from Earth
520.7 light-years (159.7 parsecs)
Stars in system
2
Known planets
1

Discovery

Year
2004
Method
Transit
Facility
TrES

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