Sir William Herschel discovered the planet Uranus on March 13, 1781. He also discovered two of Uranus’ moons and two of Saturn’s moons!
William Lassel discovered Neptune’s largest moon Triton on October 10, 1846, as well as two of Uranus’ moons, and one of Saturn’s.
The existance and location of Neptune
John Crouch Adams predicted the existance of the planet Neptune, from irregulatities in the orbit of Uranus
Also known by it’s less catchy name NGC 5128, this prominent galaxy was discovered in 1826 by Scottish astronomer James Dunlop
Possibly one of the most well-known comets, visible with the naked eye from Earth every 75-76 years, it was discovered by and named after Edmond Halley
Scottish astronomer Robert Innes discovered our Sun’s nearest fellow star, which is just over 4 light years away, in 1915
These highly magnetised rotating neutron stars which emit beams of electromagnetic radiation were first observed by Jocelyn Bell Burnell and Antony Hewish on November 28, 1967. Image courtesy of Cambridge University Lucky Imaging Group
In 1783, John Michell proposed the idea that black holes existed, however it wasn’t until the twentieth century that people started to understand the concepts and it wasn’t until 1964 that the term ‘black hole’ was used.
The Composition of Saturn’s Rings
In 1859, James Clery Maxwell determined the rings of Saturn were composed of numerous small particles, all independently orbiting the planet, rather than being solid (which was generally thought at the time)
The Eddington limit
Arthur Stanley Eddington discovered the natural limit to the luminosity of stars