William Crabtree (1610–1644?), English astronomer, mathematician and merchant. // Events January 7 - Galileo Galilei discovers the Galilean moons of Jupiter. ... // Events February to August - Explorer Abel Tasmans second expedition for the Dutch East India Company maps the north coast of Australia. ...

William Crabtree was an astronomer and mathematician from Salford, Manchester, England. He was one of only two people to observe the first recorded transit of Venus in 1639. An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics. ... A mathematician is a person whose area of study and research is mathematics. ... Salford is the main town of the City of Salford, Greater Manchester, England. ... Jump to: navigation, search Manchester Town Hall is an example of the Victorian architecture found in Manchester and is the home of Manchester City Council Manchester is a large conurbation in the North West of England and is home to 2. ... Jump to: navigation, search Royal motto (French): Dieu et mon droit (Translated: God and my right) Englands location within the UK Official language English de facto Capital London de facto Largest city London Area - Total Ranked 1st UK 130,395 km² Population - Total (mid-2004) - Density Ranked 1st UK... The 2004 transit of Venus A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and the Earth, obscuring a small portion of the Suns disc. ... Events January 14 - Connecticuts first constitution, the Fundamental Orders, is adopted. ...

Crabtree was born in Broughton, Salford and was educated at the Manchester Grammar School. He married into a wealthy family and worked as a merchant. However, in his spare time, his great interest was astronomy. He carely measured the movements of the planets and undertook precise astronomical calculations. With improved accuracy, he rewrote the existing Rudolphine Tables of Planetary Positions. The name Broughton is derived from the Saxon “Broc”, which means brook or broken land; and “Tun”, the dwelling or town. ... Salford is the main town of the City of Salford, Greater Manchester, England. ... The Manchester Grammar School (MGS) is an independent boys school (ages 11-18) in Manchester, England. ... Astrometry: the study of the position of objects in the sky and their changes of position. ... A planet (from the Greek πλανήτης, planetes or wanderers) is a body of considerable mass that orbits a star and that produces very little or no energy through nuclear fusion. ...

He met Jeremiah Horrox, another enthusiastic amateur astronomer, in 1636. They observed, plotted and recorded the transit of the planet Venus across the Sun, as predicted by Horrox, on 24 November 1639. They also predicted the next occurrence on 8 June 2004. Unfortunately Horrox died early in 1641, abruptly ending their collaboration. Events February 24 - King Christian of Denmark gives an order that all beggars that are able to work must be sent to Brinholmen Island to build ships or as galley rowers March 26 - Utrecht University founded in The Netherlands. ... Adjective Venusian or (rarely) Cytherean (*min temperature refers to cloud tops only) Atmospheric characteristics Atmospheric pressure 9. ... Jump to: navigation, search The Sun is the star at the centre of our Solar system. ... Jump to: navigation, search November 24 is the 328th day (329th on leap years) of the year in the Gregorian Calendar. ... Events January 14 - Connecticuts first constitution, the Fundamental Orders, is adopted. ... June 8 is the 159th day of the year in the Gregorian Calendar (160th in leap years), with 206 days remaining. ... Jump to: navigation, search 2004(MMIV) is a leap year starting on Thursday of the Gregorian calendar. ... Events The Long Parliament passes a series of legislation designed to contain Charles Is absolutist tendencies. ...

Crabtree is celebrated in Manchester Town Hall, where he can be seen in a mural entitled Crabtree Rapt in Contemplation by the artist Ford Madox Brown. Jump to: navigation, search Manchester Town Hall Manchester Town Hall is a building in Manchester, England that houses the citys government and administrative functions. ... The Last of England, 1855 Ford Madox Brown (April 16, 1821 - October 6, 1893) was an English painter of moral and historical subjects, notable for his distinctively graphic and often Hogarthian version of the Pre-Raphaelite style. ...

Book

• Chapman, Allan, William Crabtree 1610–1644: Manchester's First Mathematician, Allan Chapman. Manchester Statistical Society, 1996. ISBN 0853361320.

Dr Allan Chapman FRAS is a historian of British science. ...

External link

• Manchester Science and Discovery including William Crabtree biography
• William Crabtree, Venus genius