Robert Stawell Ball — кітаптар

Great Astronomers: Isaac Newton

Great Astronomers: Galileo Galilei

Great Astronomers: Pierre-Simon Laplace

Great Astronomers: Johannes Kepler

Great Astronomers: Nicolaus Copernicus

Great Astronomers: Tycho Brahe

Great Astronomers: Edmond Halley

Great Astronomers: William Herschel

Great Astronomers: John Flamsteed