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| 1 | Astronomical year numbering |
| Astronomical year numbering is a method of numbering years before the start of the anno Domini era. In astronomical year numbering, the year 1 BC is numbered 0, the year 2 BC is numbered -1, and in... its original use by astronomers. It is convenient to have a year 0 when subtracting years and ... | |
| 2 | 1643 in science |
| The year 1643 in science and technology See also: 1642 in science, other events of 1643, 1644 in science, list of years in science. Exploration January 21 - Abel Tasman discovers the Tonga... Newton (+1727), physicist and mathematician Deaths November 3 - John Bainbridge, astronomer ... | |
| 3 | Manuel John Johnson |
| Royal Astronomical Society that same year. He served as director of Radcliffe Observatory from 1839 until his death. He served as president of the Royal Astronomical Society in 1857–1858... Manuel John Johnson (May 1805 – March 1 1859) was a British astronomer. In 1835 he published A ... | |
| 4 | S. W. Burnham |
| Sherburne Wesley Burnham (December 12 1838 – March 11 1921) was an American astronomer. Worked at Yerkes Observatory. His day job was as a court reporter, except for four years as a full-time astronomer at Lick Observatory. He served as a military stenographer in the Union Army in the Civil War ... | |
| 5 | Joseph Weber Award for Astronomical Instrumentation |
| The Joseph Weber Award for Astronomical Instrumentation is awarded by the American Astronomical Society to an individual for the design, invention or significant improvement of instrumentation leading to advances in astronomy. Weber Award winners are: Year Recipient 2002 James E. Gunn 2003 ... | |
| 6 | Kazuo Kubokawa |
| Kazuo Kubokawa (窪川一雄) (1903 – January 3 1943) was a Japanese astronomer. He co... Astronomical Association, Taiwan Branch beginning in 1938. He began to build "New High Mountain Observatory" (新高山 天文台) in 1942, but died the following year ... | |
| 7 | Julian year |
| A Julian year is exactly 365.25 days. It is the length of a year in the Julian calendar. Astronomers still use the Julian year as a fundamental unit for ephemeris work, since it provides a quick and simple conversion to Julian dates. Note a Julian year is not the same as a Gregorian calendar year ... | |
| 8 | 1762 in science |
| The year 1762 in science and technology included many events, some of which are listed here. See also: 1761 in science, other events of 1762, 1763 in science and the list of years in science. Awards... astronomer (born 1723) March 21 - Nicolas Louis de Lacaille, French astronomer (born 1713) July 13 - James ... | |
| 9 | 1470s |
| Centuries: 14th century - 15th century - 16th century Decades: 1420s 1430s 1440s 1450s 1460s - 1470s - 1480s 1490s 1500s 1510s 1520s Years: 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 Events and Trends Prominent Persons Nicolaus Copernicus, Polish astronomer ... | |
| 10 | 647 |
| Years: 643 644 645 646 - 647 - 648 649 650 651 Decades: 610s 620s 630s - 640s - 650s 660s 670s Centuries: 6th century - 7th century - 8th century Events The Cheomseongdae astronomical observatory is constructed in Silla around this time ... | |
| 11 | 903 |
| Years: 899 900 901 902 - 903 - 904 905 906 907 Decades: 870s 880s 890s - 900s - 910s 920s 930s Centuries: 9th century - 10th century - 11th century Events Vikings invade England. Births December 7 - Abd-al-Rahman Al Sufi, Persian astronomer Deaths ... | |
| 12 | Stephan's Quintet |
| Stephan's Quintet is an interacting group of galaxies 370 million light years from our Milky Way Galaxy. Named after French astronomer Édouard Stephan. References http://www.galex.caltech.edu/popups/gallery-SQ.html ... | |
| 13 | 1865 in science |
| The year 1865 in science and technology included many events, some of which are listed here. See also: 1864 in science, other events of 1865, 1866 in science and the list of years in science. Awards... - Johann Franz Encke, astronomer (* 1791) September 2 - William Rowan Hamilton, mathematician ... | |
| 14 | Karl Ludwig Hencke |
| Karl Ludwig Hencke (April 8 1793 – September 25 1866) was a German astronomer. He is sometimes confused with Johann Franz Encke, another German astronomer. He discovered two asteroids. The first... Vesta, was found in 1807. Other astronomers had abandoned their searches for more asteroids ... | |
| 15 | Janet Akyüz Mattei |
| Janet Akyüz Mattei (January 2 1943 – March 22 2004) was a Turkish-American astronomer and... from Ege University in Turkey, 1982. As head of the AAVSO for over 30 years, she collected observations of variable stars by amateur astronomers from around the world. She coordinated many important ... |