Enkutatash is the first day of the New Year in Ethiopia.http://en.wikipedia.org/wiki/Enkutatash
NGC 108 is a barred spiral galaxy discovered by William Herschel on the 11th September 1784.http://astronomy.activeboard.com/t58525723/ngc-108/NGC 315 is an elliptical galaxy discovered by William Herschel on the 11th September 1784.http://astronomy.activeboard.com/t58525719/ngc-315/William Herschel catalogued NGC 604 on September 11, 1784, as H III.150 http://astronomy.activeboard.com/t58525713/ngc-604/IC 4660 is a spiral galaxy discovered by Isaac Roberts on the 11th September 1895.http://astronomy.activeboard.com/t58525669/ic-4660/NGC 6667 is a barred spiral galaxy discovered by Lewis A. Swift on the 11th September 1883.http://astronomy.activeboard.com/t58525648/ngc-6667/Messier 2 is a globular star cluster recorded by Charles Messier on the 11th September 1760.http://astronomy.activeboard.com/t58525628/messier-2/NGC 7315 is an elliptical galaxy discovered by Edouard Stephan on the 11th September 1872.http://astronomy.activeboard.com/t58525603/ngc-7315/NGC 7342 is a face-on barred spiral galaxy discovered by Edouard Stephan on the 11th September 1872.http://astronomy.activeboard.com/t58525577/ngc-7342/NGC 7345 is a spiral galaxy discovered by Edouard Stephan on the 11th September 1872.http://astronomy.activeboard.com/t58525566/ngc-7345/NGC 7392 is a barred spiral galaxy discovered by William Herschel on the 11th September 1787.http://astronomy.activeboard.com/t58525559/ngc-7392/
Asteroid (125) Liberatrix was discovered by Prosper Henry on September 11, 1872 from Paris. http://en.wikipedia.org/wiki/125_LiberatrixAsteroid (202) Chryseïs was discovered by C. H. F. Peters on September 11, 1879 in Clinton, New York.http://en.wikipedia.org/wiki/202_Chryse%C3%AFsAsteroid (317) Roxane was discovered by Auguste Charlois from Nice on September 11, 1891. http://en.wikipedia.org/wiki/317_RoxaneAsteroid (434) Hungaria was discovered by Max Wolf on September 11, 1898 at the University of Heidelberg. http://en.wikipedia.org/wiki/434_HungariaAsteroid (435) Ella was discovered by Max Wolf and A. Schwassmann on September 11, 1898 in Heidelberg.http://en.wikipedia.org/wiki/435_Ella
Leda, a prograde irregular satellite of Jupiter, was discovered on the 11th September 1974https://en.wikipedia.org/wiki/Leda_(moon)Meteorite fallsThe Arbol Solo (H5) meteorite fell in San Luis, Argentina, on the 11th September 1954.http://astronomy.activeboard.com/t44919804/arbol-solo-meteorite/The Karatu (LL6) meteorite fell in Arusha, Tanzania, on the 11th September 1963.http://astronomy.activeboard.com/t44919815/karatu-meteorite/The Undulung (L4) meteorite fell in Respublika Sakha (Yakutiya), Russia, on the 11th September 1986.http://astronomy.activeboard.com/t54918167/undulung-meteorite/
PeopleGherman Stepanovich Titov (September 11, 1935 - September 20, 2000) was a Soviet cosmonauthttp://astronomy.activeboard.com/t44919737/gherman-stepanovich-titov-1935-2000/Robert Laurel Crippen (born September 11, 1937 in Beaumont, Texas) is an engineerhttp://astronomy.activeboard.com/t44919751/robert-laurel-crippen/Randolph James "Komrade" Bresnik (born September 11, 1967) is a NASA astronaut.http://en.wikipedia.org/wiki/Randolph_Bresnik
John Royer "Jack" Garman (September 11, 1944 - September 20, 2016) was a computer engineer.https://en.wikipedia.org/wiki/Jack_GarmanSir James Hopwood Jeans (11 September 1877 - 16 September 1946) was an English physicist, astronomer and mathematician.http://en.wikipedia.org/wiki/James_Hopwood_JeansAlexandre Guy Pingré (11 September 1711 - 1 May 1796) was a French canon regular, astronomer and naval geographer.http://en.wikipedia.org/wiki/Alexandre_Guy_Pingr%C3%A9Mary Proctor (1862 - September 11, 1957) was an American populariser of astronomyhttp://en.wikipedia.org/wiki/Mary_ProctorMary Watson Whitney (September 11, 1847 - January 20, 1921) was an American astronomer http://en.wikipedia.org/wiki/Mary_Watson_WhitneyCarl Zeiss (11 September 1816 - 3 December 1888) was a German maker of optical instruments http://en.wikipedia.org/wiki/Carl_Zeiss
The first series of QI started on 11 September 2003.