At the beginning of his career he worked at the Greenwich Observatory near London . He was also involved in the observation of the passage of Venus ( Venus transit ) in 1761, which was requested by Edmond Halley . He observed Venus together with Jeremiah Dixon in Cape Town, the results should be a counterpart to the results of the observations in Northern Europe. Between 1763 and 1769 he and his partner Jeremiah Dixon measured the Mason-Dixon line named after them .
- The American author Thomas Pynchon set a literary monument to the two in his 1997 novel Mason & Dixon .
- The title track of the Mark Knopfler album Sailing to Philadelphia is about Charles Mason and Jeremiah Dixon.
- The lunar crater Mason is named after him.
- A Plan of the West Line or Parallel of Latitude . In: World Digital Library . 1768. Retrieved July 1, 2013.
|BRIEF DESCRIPTION||English astronomer|
|DATE OF BIRTH||April 1728|
|PLACE OF BIRTH||Oakridge, Gloucestershire, England|
|DATE OF DEATH||October 25, 1786|
|Place of death||Philadelphia , Pennsylvania , USA|