The original map was about 20 miles off the observed eclipse path, mainly due to his use of inaccurate lunar ephemeris.

[1] Drawing upon lunar tables made by the first Astronomer Royal John Flamsteed, William Whiston produced a more technical predictive eclipse map around the same time as Halley.

[2][3] Totality was observed in the Kingdom of Great Britain from Cornwall in the south-west to Lincolnshire and Norfolk in the east.

It was also observed in Ireland, where large crowds turned out in Dublin to watch it: the weather in Dublin was exceptionally cold and wet, and the eminent judge Joseph Deane caught a fatal chill as a result,[4] although Elrington Ball more prosaically states that his death was probably due to gout.

[5] Note: Great Britain did not adopt the Gregorian calendar until 1752, so the date was at the time considered 22 April 1715.