1/06/2012

First Four Exoplanets of 2012 Discovered



Only 4 days into 2012 and already 4 new Hot Jupiters: HAT-P-34, HAT-P-35, HAT-P-36, HAT-P-37. -- Twitter announcement by @ExoplanetApp

Apart from having breakneck orbital speeds, one of the exoplanets (HAT-P-34b) is notable for having a very elongated -- or "eccentric" -- orbit. Only four other transiting exoplanets are known to have more eccentric orbits.
All four alien worlds are known as "hot Jupiters" -- large gas giant planets orbiting very close to their stars. Their orbits are aligned just right with the Earth so that when they pass in front of their parent stars, they slightly dim the starlight from view.

HAT-P-34b, HAT-P-35b, HAT-P-36b and HAT-P-37b have very tight orbits around their stars, completing a "year" in only 5.5-, 3.6-, 1.3- and 2.8-days respectively. Remember, the Earth orbits the sun every 365 days.
Apart from having breakneck orbital speeds, one of the exoplanets (HAT-P-34b) is notable for having a very elongated -- or "eccentric" -- orbit. Only four other transiting exoplanets are known to have more eccentric orbits.

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