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TrES-2
From Wikipedia, the free encyclopedia
| Extrasolar planet | Lists of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | GSC 03549-02811 | |
| Constellation | Draco | |
| Right ascension | (α) | 19h 07m 14s |
| Declination | (δ) | +49° 18′ 59″ |
| Spectral type | G0V | |
| Orbital elements | ||
| Semimajor axis | (a) | 0.0367 ± 0.0012 AU |
| Eccentricity | (e) | 0 |
| Orbital period | (P) | 2.47063 ± 1e-05 d |
| Inclination | (i) | 83.9 ± 0.22° |
| Longitude of periastron |
(ω) | ?° |
| Time of periastron | (τ) | ? JD |
| Physical characteristics | ||
| Mass | (m) | 1.28 ± 0.09 MJ |
| Radius | (r) | 1.24 ± 0.09 RJ |
| Density | (ρ) | 0.83 ± 0.12 kg/m3 |
| Temperature | (T) | ? K |
| Discovery information | ||
| Discovery date | 2006 | |
| Discoverer(s) | O'Donovan et al. | |
| Detection method | Transit | |
| Discovery status | Published | |
TrES-2 is an extrasolar planet orbiting the star GSC 03549-02811 located 750 light years away. The planet's mass and radius indicate that it is a gas giant with a similar bulk composition to Jupiter. Unlike Jupiter, but similar to many other planets detected around other stars, TrES-2 is located very close to its star, and belongs to the class of planets known as hot Jupiters.
Contents |
TrES-2 was discovered by the Trans-Atlantic Exoplanet Survey by detecting the transit of the planet across its parent star using Sleuth (Palomar Observatory, California) and PSST (Lowell Observatory, Arizona), part of the TrES network of 10–cm telescopes. The discovery was confirmed by the Keck Observatory.
- O'Donovan, F. et al.. "TrES2: The First Transiting Planet in the Kepler Field". Astrophysical Journal (submitted).