Gregory W. Henry is an astronomer and research scientist for

Tennessee State University Tennessee State University (Tennessee State, Tenn State, or TSU) is a public historically black land-grant university in Nashville, Tennessee, United States. Founded in 1912, it is the only state-funded historically black university in Tenness ...

. In 1999, Henry led one of two teams that discovered the first transiting

extrasolar planet An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not recognized as such. The first confirmation of detection occurred in 1992. A different planet, init ...

HD 209458 b HD 209458 b, which is also nicknamed Osiris after the Egyptian god, is an exoplanet that orbits the solar analog HD 209458 in the constellation Pegasus, some from the Solar System. The radius of the planet's orbit is , or one-eighth the radius ...

. The other team was led by

David Charbonneau David Brian Charbonneau is a professor of Astronomy at Harvard University. His research focuses on the development of novel techniques for the detection and characterization of exoplanets orbiting nearby, Sun-like stars. Early life and educat ...

. Henry was also involved in the discovery of HD 149026 b. This discovery was important in understanding how planets form and supports solar nebula accretion mode.

External links

Henry's TSU home page
Year of birth missing (living people) Living people American astronomers Tennessee State University faculty Place of birth missing (living people) {{US-astronomer-stub