Sea of Crises / Sea of Fruitfulness / Small mountain / Western Cape / /
Person
John Couch Adams / Rima Cleomedes / Georges Furner / Marie Jean Antoine de Caritat / Charles Glover Barkla / Friedrich von Hahn / Moon Volume / Mercury / Cornelius Kapteyn / Denis Petau / Simon Stevin / Michael Florentius van Langren / Philippe le Doulcet de Pontecouland / /
Position
mathematician and astronomer / mathematician and statesman / astronomer and mathematician / physicist / Messenger / engineer and astronomer / historian / mathematician / engineer / specialist / mathematician and Jesuit professor / Babylonian astronomer-priest and historian / astronomer / 17th century engineer and astronomer / early 19th century mathematician and astronomer / 18th century astronomer / 19th century astronomer / /