{{Short description|English astronomer}} {{Use dmy dates|date=February 2025}} {{Use British English|date=July 2016}} [[File:Roger Long by Benjamin Wilson.jpg|thumb|Roger Long by [[Benjamin Wilson (painter)|Benjamin Wilson]]]]
'''Roger Long''' (1680 – 16 December 1770) was an English [[astronomer]], and Master of [[Pembroke College, Cambridge|Pembroke College]], [[University of Cambridge|Cambridge]] between 1733 and 1770.
Roger Long was the son of Thomas Long of [[Croxton, Norfolk]]. He was educated at [[Norwich School]] and later admitted to [[Pembroke College, Cambridge]] in 1696/7.<ref>Liba Taub, [http://www.oxforddnb.com/view/article/16975 ‘Long, Roger (1680–1770)’], Oxford Dictionary of National Biography, Oxford University Press, 2004, accessed 2 October 2013</ref><ref name=Venn>{{acad|id=LN696R|name=Long, Roger}}</ref> Graduating BA in 1700/1, he became a fellow of Pembroke. He was ordained in 1716, and became Rector of [[Orton Waterville]]. He became a Doctor of Divinity in 1728, and Master of Pembroke in 1733. From 1750 until 1770 he was the first holder of the [[Lowndean Professor of Astronomy and Geometry|Lowndean Professorship of Astronomy]].<ref name=Venn/>
One of the great characters of eighteenth-century [[Cambridge]], he built a "water-work" in his garden and paddled round it on a water-cycle. He also constructed a "zodiack", now considered to be the first [[planetarium]], a hollow sphere that could hold thirty people showing the movements of the planets and constellations which remained in the grounds of Pembroke until 1871.
==References== {{reflist}}
{{s-start}} {{s-aca}} {{s-bef|before=[[John Hawkins (Pembroke)|John Hawkins]]}} {{s-ttl|title=[[List of Masters of Pembroke College, Cambridge|Master of Pembroke College, Cambridge]]|years=1733–1770}} {{s-aft|after=[[James Brown (Pembroke)|James Brown]]}} {{end}}
{{Authority control}}
{{DEFAULTSORT:Long, Roger}} [[Category:1680 births]] [[Category:1770 deaths]] [[Category:People from Norfolk]] [[Category:18th-century English astronomers]] [[Category:People educated at Norwich School]] [[Category:Alumni of Pembroke College, Cambridge]] [[Category:Masters of Pembroke College, Cambridge]] [[Category:Lowndean Professors of Astronomy and Geometry]] [[Category:Vice-chancellors of the University of Cambridge]] [[Category:British fellows of the Royal Society]]