description Tau Boötis b Overview
Tau Boötis b is an exoplanet categorized as a hot Jupiter, orbiting the F-type star Tau Boötis. Discovered in 1996 using the radial velocity method, it was one of the earliest exoplanets found around a sun-like star. The planet is tidally locked to its host star and was among the first exoplanets to have its atmospheric composition analyzed via ground-based spectroscopy.
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When was Tau Boötis b discovered?
Tau Boötis b was discovered in 1996, making it one of the earliest known exoplanets. It was identified just a year after the famous 51 Pegasi b, marking a major milestone in the study of extrasolar planets.
Why is Tau Boötis b famous in the field of astronomy?
It is notable for being one of the first exoplanets to have its atmospheric composition detected via ground-based spectroscopy. In 2004, astronomers used the Subaru Telescope to detect carbon monoxide in its atmosphere.
What kind of planet is Tau Boötis b?
It is classified as a "hot Jupiter," a massive gas giant that orbits extremely close to its host star. Because of this tight orbit, the planet completes a full revolution every 3.3 Earth days.
How was Tau Boötis b originally detected?
Astronomers initially found it using the radial velocity method, which detects a star's wobble caused by a planet's gravitational pull. Later advancements in 2012 allowed scientists to measure its passing light using the transit method.
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