Friedrich August Theodor Winnecke (February 5, 1835 – December 3, 1897) was a German astronomer. February 5 is the 36th day of the year in the Gregorian Calendar. ... 1835 was a common year starting on Thursday (see link for calendar). ... December 3 is the 337th (in leap years the 338th) day of the year in the Gregorian calendar. ... 1897 was a common year starting on Friday (see link for calendar). ... An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics. ...

He worked at Pulkovo Observatory from 1858 to 1865, but returned to Germany and served as professor of astronomy at Strasbourg from 1872 to 1881. The Pulkovo Space Observatory (Пулковская астрономическая обсерватория in Russian), the principal space observatory of the Russian Academy of Sciences, located 19 km south of Saint Petersburg on Pulkovo Heights (75 m above the sea level). ... 1858 is a common year starting on Friday. ... 1865 is a common year starting on Sunday. ... Astronomy is one of the few sciences where amateurs can still play an active role, especially in the discovery and monitoring of transient phenomena. ... City motto: – City proper (commune) Région Alsace Département Bas-Rhin (67) Mayor Fabienne Keller (UMP) (since 2001) Area 78. ... 1872 was a leap year starting on Monday (see link for calendar). ... 1881 was a common year starting on Saturday (see link for calendar). ...

He discovered or co-discovered a large number of comets, including the periodic comet 7P/Pons-Winnecke and the comet once known as "Pons-Coggia-Winnecke-Forbes" but later renamed to 27P/Crommelin after Andrew Crommelin, who computed its orbit. Andrew Claude de la Cherois Crommelin (February 6, 1865 – September 20, 1939) was a British astronomer. ...

He also compiled a list of double stars and found a number of nebulae. Double Star is a science fiction novel by Robert A. Heinlein. ... The Triangulum Emission Nebula NGC 604 lies in a spiral arm of Galaxy M33, 2. ...