Annular Solar Eclipse of 1610 December 15http://eclipse.gsfc.nasa.gov/SEsearch/SEsearchmap.php?Ecl=16101215
Orion's Belt is at its highest point in the sky around midnight on December 15.http://en.wikipedia.org/wiki/Orion%27s_Belt
The Consuales Ludi is a festival instituted by Romulus, which honours Consus, the god of counselhttp://en.wikipedia.org/wiki/ConsualiaThe Breviary of Aberdeen celebrates the feast of Saint Drostan on 15 December.http://en.wikipedia.org/wiki/Drostan
On 15 December 1989, KLM Flight 867 flew through a thick cloud of volcanic ash from Mount Redoubthttp://en.wikipedia.org/wiki/KLM_Flight_867
San Marco 1, the first Italian satellite, was launched on 15 December 1964http://en.wikipedia.org/wiki/San_Marco_1Gemini 6A was launched in 1965http://astronomy.activeboard.com/t39927943/gemini-6a-mission/Venera 7 successfully landed on Venus on 15 December 1970http://en.wikipedia.org/wiki/Venera_7The Vega 1 Soviet space probe was launched on 15 December 1984http://en.wikipedia.org/wiki/Vega_1A Soyuz rocket with the crew of Expedition 26 launched on the 15th December, 2010http://astronomy.activeboard.com/t39739274/expedition-26/?page=3&sort=newestFirst
János Bolyai (December 15, 1802 - January 27, 1860) was a Hungarian mathematicianhttp://en.wikipedia.org/wiki/J%C3%A1nos_BolyaiMaurice Hugh Frederick Wilkins(15 December 1916 - 5 October 2004) was a New Zealand-born English physicisthttp://en.wikipedia.org/wiki/Maurice_WilkinsFreeman John Dyson FRS (born December 15, 1923) is a British-born American theoretical physicisthttp://astronomy.activeboard.com/t46756976/freeman-john-dyson/Antoine Henri Becquerel (15 December 1852 - 25 August 1908) was a French physicisthttp://astronomy.activeboard.com/t46756991/antoine-henri-becquerel-1852-1908/Charles Augustus Young (December 15, 1834 - January 4, 1908) was a solar spectroscopist http://astronomy.activeboard.com/t46757000/charles-augustus-young-1834-1908/
Roy A. Tucker (born 1951 in Jackson, Mississippi) is an American astronomerhttps://en.wikipedia.org/wiki/Roy_A._TuckerJohann Gottfried Koehler (15 December 1745 - 19 September 1801) was a German astronomerhttp://en.wikipedia.org/wiki/Johann_Gottfried_KoehlerAlice Vibert Douglas (December 15, 1894 - 2 July 1988) was a Canadian astronomerhttp://en.wikipedia.org/wiki/Alice_Vibert_Douglas
Jens Olsen's World Clock was started on 15 December 1955http://en.wikipedia.org/wiki/Jens_Olsen%27s_World_Clock
The film Gone with the Wind premiered at the Loew's Grand Theatre on December 15, 1939. http://astronomy.activeboard.com/t51919276/gone-with-the-wind/Star Trek: "Balance of Terror" was first aired on December 15, 1966.
NGC 1338 was discovered by Edouard Stephan on the 15th December 1884. http://astronomy.activeboard.com/t55924378/ngc-1338/NGC 1691 was discovered by Edouard Stephan on the 15th December 1876. http://astronomy.activeboard.com/t55924416/ngc-1691/NGC 1847 was discovered by John Herschel on the 15th December 1835. http://astronomy.activeboard.com/t55924519/ngc-1847/
In 1612 German astronomer Simon Marius measured the diameter of the Andromeda nebulahttp://astronomy.activeboard.com/t47198011/simon-marius-1573-1624/
The first X-ray flare detected from a brown dwarf, LP 944-020, was on December 15, 1999http://en.wikipedia.org/wiki/LP_944-020Audouin Dollfus observed the moon Janus on December 15, 1966http://en.wikipedia.org/wiki/Janus_(moon)Asteroid 23 Thalia was discovered by J. R. Hind on December 15, 1852http://en.wikipedia.org/wiki/23_Thalia
Comet Herschel (C/1791 X1) was discover by Caroline Herschel on 15th December, 1791http://arxiv.org/abs/1212.0809
MeteoritesThe Vishnupur (LL4-6) meteorite fell in West Bengal, India, on the 15th December, 1906.http://astronomy.activeboard.com/t46756843/vishnupur-meteorite/The Sete Lagoas (H4) meteorite fell in Minas Gerais, Brazil, on the 15th December, 1908.http://astronomy.activeboard.com/t46756860/sete-lagoas-meteorite/The Ramnagar (L6) meteorite fell in Uttar Pradesh, India, on the 15th December, 1940.http://astronomy.activeboard.com/t46756883/ramnagar-meteorite/The Nuevo Mercurio (H5) meteorite fell in Zacatecas, Mexico, on the 15th December, 1978.http://astronomy.activeboard.com/t46756894/nuevo-mercurio-meteorite/