description TrES-2b Overview
TrES-2b is a giant exoplanet orbiting the star GSC 03549-02807. It’s notable as the darkest known exoplanet, reflecting extremely little light – less than one percent. This makes it a valuable subject for studying planetary atmospheres and extreme conditions.
Astronomers and researchers interested in characterizing hot Jupiters and understanding dark object properties study TrES-2b.
insights Why this score
TrES-2b ranks #31 of 269 in the Exoplanet ranking, behind WASP-12b, ahead of WASP-121b.
help TrES-2b FAQ
Why is the exoplanet TrES-2b considered the darkest?
TrES-2b reflects less than 1% of the incident starlight that hits it, making it the darkest known exoplanet. Its atmosphere contains light-absorbing chemicals, such as vaporized sodium and potassium, which contribute to its incredibly low albedo.
When was TrES-2b discovered?
The planet was discovered in 2006 by the Trans-Atlantic Exoplanet Survey (TrES). It was subsequently monitored by NASA's Kepler mission, which helped determine its exact size and atmospheric properties.
What type of planet is TrES-2b?
TrES-2b is a gas giant exoplanet, specifically classified as a hot Jupiter. It orbits extremely close to its parent star, a G-type star named Kepler-1, located about 750 light-years away.
What is the temperature on TrES-2b?
The dayside temperature of TrES-2b is estimated to be around 1,800 Kelvin (over 2,700 degrees Fahrenheit). This intense heat prevents the formation of reflective ammonia clouds, further contributing to its dark appearance.
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