Agatharchides Agricola Archytas Ariadaeus Artsimovich Billy Birt Bradley Calippus Cardanus Cauchy Cleomedes Conon Delisle Diophantus Draper Flammarion Furnerius G Bond Gaertner Galilaei Gay-Lussac Hadley Hansteen Hesiodus Hyginus Jansen Krieger Mairan Marcello Marius Messier Milichius Oppolzer Reaumur Schroeter Sharp Sheepshanks Siegfried Suess T Mayer Vladimir Wan-Yu Yangel Zahia