The Net Advance of Physics RETRO:
ASTRONOMY


ASTRONOMY in the Long Nineteenth Century.

Most material in Net Advance Retro is very old. It may be obsolete or incorrect. For more recent technical information, please consult the Astronomy page at the regular Net Advance site. For information about the history of astronomy in general or after 1920, please see the page History of Astronomy.



THE NET ADVANCE OF PHYSICS --- Retro