Biography
John Herschel, son of William, extended the family's surveys to the southern skies from the Cape of Good Hope. His General Catalogue of nebulae and clusters became the backbone of the later New General Catalogue (NGC). A pioneer of photography, he coined the terms 'positive' and 'negative' and named many moons of Saturn and Uranus.
Scientific contributions
- Catalogued the southern-hemisphere nebulae and stars
- Extended his father's deep-sky surveys into a general catalogue
- Named seven moons of Saturn and four of Uranus; pioneered photography
Knowledge connections
- Influenced byWilliam Herschel
- Part ofModern Astronomy
Sources & references
The primary and reference sources this topic draws on.
- BritannicaEncyclopaedia Britannica
General reference for the history of astronomy, biographies, and cultural context.
- OpenNGCOpenNGC (M. Verga) — NGC/IC, Messier, and Caldwell catalogue data
Openly-licensed deep-sky catalogue: object types, positions, magnitudes, sizes, morphology, and cross-identifiers.