TrES-2
Star
TrES-2 (Kepler-1) — a Sun-like G-type star ~702 light-years away in Draco, in NASA's Kepler field. It hosts the darkest planet known.
Open in 3D viewSee TrES-2 in the live, interactive 3D map
Key facts
Mass
2.70 × 10³⁰ kg
1.36 M☉
Radius
779,184 km
1.12× wider than the Sun
Surface temperature
5,850 K (5577 °C)
Spectral type
G0V (a Sun-like yellow dwarf)
Science
Physical
- Mass
- 2.70 × 10³⁰ kg · 1.36 M☉
- Radius
- 779,184 km · 1.12× wider than the Sun
- Density
- 1,365 kg/m³ · 1.4× water
- Spectral type
- G0V (a Sun-like yellow dwarf)
Composition
- By mass
- A Sun-like star (~1.4 solar masses) in Draco; also catalogued Kepler-1, the first Kepler object.
Temperature
- Surface
- 5,850 K (5577 °C)
Radiation & temperature
- Luminosity
- 5.07 × 10²⁶ W · 1.32 L☉
- Surface temperature
- 5,850 K (5577 °C)
- Peak wavelength
- 495 nm · green-yellow visible light
Discovery & history
- Name
- A Trans-Atlantic Exoplanet Survey designation; the star is also Kepler-1.
A transiting-planet host found in 2006; its place in the Kepler field let Kepler measure the planet's record-low reflectivity.
Images
Images from open archives · credit shown per image