n.
1.English astronomer (son of William Herschel) who extended the catalogue of stars to the southern hemisphere and did pioneering work in photography (1792-1871)
2.English astronomer (born in Germany) who discovered infrared light and who catalogued the stars and discovered the planet Uranus (1738-1822)
Idiom of the Day
run up
to add to the amount of something
We ran up a large bill at the department store before we went home.