- Young, Charles Augustus
- Campbell, William Wallace Wallace
- Tsiolkovsky, Konstantin Țiolkovski Eduardovich
- De la K RMN, Theodore
- Otto Struve
- Struve (familie)
- Slipher , Vesto Melvin
- Sitter , Willem de
- Shapley, Harlow
- Schiaparelli , Giovanni Virginio Schiaparelli
- Sagan, Carl
- Russell, Henry Norris
- Rosse , Earl of
- Roemer , Olaus Roemer în
- Rittenhouse, David
- Woolley, Richard
- Pickering ( familie )
- Pease , Francis Gladheim
- Newcomb , Simon
- Al
Descoperirea cunoştinţelor