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Gregory W. Henry
Gregory W. Henry is an astronomer and research scientist for Tennessee State University. In 1999, Henry led one of two teams that discovered the first transiting extrasolar planet, HD 209458 b. 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 linksHenry'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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Tennessee. It is a member-school of the Thurgood Marshall College Fund. Tennessee State University offers 41 bachelor’s degrees, 23 master's degrees, and eight doctoral degrees. It is classified as "R2: Doctoral Universities – High research activity". History The university was established as the Tennessee Agricultural & Industrial State Normal School for Negroes in 1912. Its dedication was held on January 16, 1913. It changed its name to Tennessee Agricultural & Industrial State Normal College in 1925. Two years later, in 1927, it became known as Tennessee Agricultural & Industrial State College. In 1941, the Tennessee General Assembly directed the Board of Education to upgrade the educational program of the college. Three years later the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Transit
In astronomy, a transit (or astronomical transit) is a phenomenon when a celestial body passes directly between a larger body and the observer. As viewed from a particular vantage point, the transiting body appears to move across the face of the larger body, covering a small portion of it. The word "transit" refers to cases where the nearer object appears smaller than the more distant object. Cases where the nearer object appears larger and completely hides the more distant object are known as ''occultations''. However, the probability of seeing a transiting planet is low because it is dependent on the alignment of the three objects in a nearly perfectly straight line. Many parameters of a planet and its parent star can be determined based on the transit. In the Solar System One example of a transit involves the motion of a planet between a terrestrial observer and the Sun. This can happen only with inferior planets, namely Mercury and Venus (see transit of Mercury and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, initially detected in 1988, was confirmed in 2003. There are many methods of detecting exoplanets. Transit (astronomy), Transit photometry and Doppler spectroscopy have found the most, but these methods suffer from a clear observational bias favoring the detection of planets near the star; thus, 85% of the exoplanets detected are inside the tidal locking zone. In several cases, List of multiplanetary systems, multiple planets have been observed around a star. About 1 in 5 Solar analog, Sun-like starsFor the purpose of this 1 in 5 statistic, "Sun-like" means G-type star. Data for Sun-like stars was not available so this statistic is an extrapolation from data about K-type star, K-type stars. have an "Earth-sized"For the purpose of this 1 in 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 of Mercury's orbit (). This small radius results in a year that is 3.5 Earth-days long and an estimated surface temperature of about . Its mass is 220 times that of Earth (0.69 Jupiter masses) and its volume is some 2.5 times greater than that of Jupiter. The high mass and volume of HD 209458 b indicate that it is a gas giant. HD 209458 b represents a number of milestones in extraplanetary research. It was the first of many categories: * a transiting extrasolar planet * The first planet detected through more than one method * an extrasolar planet known to have an atmosphere * an extrasolar planet observed to have an evaporating hydrogen atmosphere * an extrasolar planet found to have an atmosphere containing the elements oxygen and carbon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 education David Charbonneau was born in Ottawa, Ontario. He is the son of Brian Charbonneau, a geologist, and Sylvia Charbonneau, a physician. When he was around 12 years old, he visited Pacific Rim National Park with his family, where he spent time playing in tide pools and observing the variety of organisms that lived in the intertidal zone. He credits this experience with sparking an early interest in science. When he was in high school, he read Stephen Hawking's ''A Brief History of Time.'' Intrigued by the ideas in the book, he decided to pursue studies in physics and astronomy, rather than biology. Charbonneau received a Bachelor of Science degree in math, physics, and astronomy from the University of Toronto in 1996. At the suggestion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD 149026 B
HD 149026 b, formally named Smertrios , is an extrasolar planet approximately 250 light-years from the Sun in the constellation of Hercules. The 2.8766-day period planet orbits the yellow subgiant star HD 149026 at a distance of and is notable first as a transiting planet, and second for a small measured radius (relative to mass and incoming heat) that suggests an exceptionally large planetary core. Name Following its discovery in 2005 the planet was designated HD 149026 b. In July 2014, the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars. The process involved public nomination and voting for the new names. In December 2015, the IAU announced the winning name was Smertrios for this planet. The winning name was submitted by the Club d'Astronomie de Toussaint of France. Smertrios was a Gallic deity of war. Discovery The planet was discovered by the N2K Consortium in 2005, which searches stars ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Birth Missing (living People)
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar year (the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Astronomers
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennessee State University Faculty
Tennessee ( , ), officially the State of Tennessee, is a landlocked state in the Southeastern region of the United States. Tennessee is the 36th-largest by area and the 15th-most populous of the 50 states. It is bordered by Kentucky to the north, Virginia to the northeast, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, Arkansas to the southwest, and Missouri to the northwest. Tennessee is geographically, culturally, and legally divided into three Grand Divisions of East, Middle, and West Tennessee. Nashville is the state's capital and largest city, and anchors its largest metropolitan area. Other major cities include Memphis, Knoxville, Chattanooga, and Clarksville. Tennessee's population as of the 2020 United States census is approximately 6.9 million. Tennessee is rooted in the Watauga Association, a 1772 frontier pact generally regarded as the first constitutional government west of the Appalachian Mountains. Its name derives from " Tan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
