TrES-2b

<a href="/facts/Celestial_coordinate_system/23HhqvHj">Coordinates</a>: <a href="http://www.wikisky.org/?ra=19.120555555556&de=49.316388888889&zoom=4&show_grid=1&show_constellation_lines=1&show_constellation_boundaries=1&show_const_names=1&show_galaxies=1&img_source=IMG_all">19h 07m 14s, +49° 18′ 59″</a>

TrES-2b (also known as Kepler-1b or GSC 03549-02811b) is an <a href="/facts/Exoplanet/zjfmqfUf">extrasolar planet</a> orbiting the star <a href="/facts/GSC_03549-02811/xS1KN2fA">GSC 03549-02811</a> located 750 <a href="/facts/Light_year/IGc5NdQb">light years</a> away from the <a href="/facts/Solar_System/QIcLSazQ">Solar System</a>. The planet was identified in 2011 as the darkest known <a href="/facts/Exoplanet/zjfmqfUf">exoplanet</a>, reflecting less than 1% of any light that hits it. Reflecting less light than charcoal, on the surface the planet is said to be pitch black. The planet's mass and radius indicate that it is a <a href="/facts/Gas_giant/pmF6KztG">gas giant</a> with a bulk composition similar to that of <a href="/facts/Jupiter/95m7XjMT">Jupiter</a>. Unlike Jupiter, but similar to many planets detected around other stars, TrES-2b is located very close to its star and belongs to the class of planets known as <a href="/facts/Hot_Jupiter/9wSFCuxk">hot Jupiters</a>. This system was within the <a href="/facts/Field_of_view/Xp1G4CXF">field of view</a> of the Kepler spacecraft.
This planet continues to be studied by other projects, and the parameters are continuously improving. A 2007 study improved stellar and planetary parameters. A 2008 study concluded that the TrES-2 system is a <a href="/facts/Binary_star/TYlDe1bD">binary star</a> system. This significantly affects the values for the stellar and the planetary parameters.

TrES-2b open-in-new

TrES-2b