harenewscorp

The Ides of March

Posts Tagged ‘pluto

313: March 13, 1781: Uranus Discovered

leave a comment »

Sir William Herschel announced its discovery on March 13, 1781, expanding the known boundaries of the Solar System for the first time in modern history. Uranus was also the first planet discovered with a telescope.

Uranus is similar in composition to Neptune, and both are of different chemical composition than the larger gas giants Jupiter and Saturn. As such, astronomers sometimes place them in a separate category called “ice giants.” Uranus’s atmosphere, while similar to Jupiter and Saturn’s in its primary composition of hydrogen and helium, contains more “ices” such as water, ammonia and methane, along with traces of hydrocarbons.[12] It is the coldest planetary atmosphere in the Solar System, with a minimum temperature of 49 K (–224 °C). It has a complex, layered cloud structure, with water thought to make up the lowest clouds, and methane thought to make up the uppermost layer of clouds.[12] In contrast, the interior of Uranus is mainly composed of ices and rock.[11]

Written by harenews

September 21, 2011 at 3:22 am

March 13, Birthdays

leave a comment »

1950 Charles Krauthamer
1911 L. Ron Hubbard, sci-fi writer/scientologist, Dianetics
1909 Gilbert Inglefield, Mayor of London, 1967-68
1909 Trofim Lysenko, Russian Celebrity
1908 Helen Sinclair Glatz, musician
1908 Walter Annenberg, born in Milwaukee, publisher, Triangle-TV Guide and Ambassador to Great Britain
1907 Albert Hughes Williams, teacher and historian
1907 Dona Maria Pia de Braganca, pretender to the Portuguese throne
1907 Frank Wilcox, born in DeSoto, Missouri, actor, John-Beverly Hillbillies
1904 Henry Iliffe Cozens, pilot
1901 Paul Fix, born in Dobbs Ferry, New York, actor, Rifleman
1899 Pancho Vladigerov, composer
1898 Josie Sedgwick, born in Texas, actress, Son of Oklahoma
1897 Marcel Thiry, Belgian poet, Statue of Fatigue
1897 William Herald, Australia, swimmer, 1920 Olympics
1896 Dorothy Aldis, writer
1892 Alec Rowley, composer
1892 Janet Flanner, journalist, New Yorker
1890 Michael Taube, composer
1888 Paul Morand, French Diplomat
1887 Carlos Isamitt, composer
1886 Henri D Gagnebin, Swiss organist
1884 Emanuel Stickelberger, Swiss writer, Bluthochzeit
1884 Hugh S. Walpole, born in New Zealand, novelist and playwright, Jeremy, Maradick at 40
1884 Oskar Loerke, German writer, Longest Day-1926
1883 Enrico Toselli, composer
1881 Balthazar H. Verhagen, Netherlands/South African dramatist and writer
1872 Oswald Garrison Villard, American journalist
1862 Vasily Mikhaylovich Metallov, composer
1855 Percival “Percy” Lowell, U.S. astronomer, predicted discovery of Pluto
1855 Percival Lowell, American Scientist