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Walter Sydney Adams ( December 20 1876May 11 1956) was an American astronomer.

He was born in Syria to missionary parents.

Among other things, he worked on solar spectroscopy and co-discovered a relationship between the relative intensities of certain spectral lines and the absolute magnitude of a star.

He won the Gold Medal of the Royal Astronomical Society in 1917 and the Henry Draper Medal in 1918. He won the Bruce Medal in 1928. He won the Henry Norris Russell LectureshipThe Henry Norris Russell Lectureship is awarded each year by the American Astronomical Society in recognition of a lifetime of excellence in astronomical research. Russell Lecturers are: YearRecipient 1946 Henry Norris Russell 1947 Walter Sydney Adams 194 in 1947Events January January 1 British mines nationalized January 1 Nigeria gains limited autonomy January 1 The Canadian Citizenship Act went into effect January 3 Proceedings of the United States Congress are televised for the first time. January 10 United Na.

The asteroidAn asteroid is a small, solid object in our Solar System, orbiting the Sun. An asteroid is an example of a minor planet (or planetoid , which are much smaller than planets. The asteroids are believed to be remnants of the protoplanetary disc which were no 3145 Walter Adams is named after him.

A craterThis article is about impact craters. For volcanic craters, see Caldera. For the constellation, see Crater (constellation). A crater basin or impact crater is a circular depression on the surface of a planet, moon, asteroid, or other celestial body. Crate on MarsMars is the fourth planet from the Sun in the solar system, named after the Roman god of war (the counterpart of the Greek Ares), on account of its blood red color as viewed in the night sky. Mars has two small moons, Phobos and Deimos, both small and odd is named after him. A crater on the MoonFor other moons in the solar system see natural satellite. For other uses see Moon (disambiguation). The Moon is the only natural satellite of Earth. It has no formal name other than "The Moon" although it is occasionally called Luna ( Latin for moon to d is jointly named after him, John Couch AdamsFor other people named John Adams, see John Adams (disambiguation). John Couch Adams ( June 5 1819 January 21, 1892), was a British mathematician. His most famous achievement was predicting the existence and position of Neptune, using only mathematics. and Charles Hitchcock Adams .

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