Popular Astronomy, Volume 24; Volume 1916

Androm appear astronomy Aurigae believed bodies bright canals Cassiop central cloud College comet continue Cygni dark December determined direction discovery distance Draconis drawings early earth eclipse evidence fact Figure Galileo Gemin give given Herculis hour increase indicate interest January July June known later latitude less letter light Lyrae magnitude March marked Mars matter mean measures mentioned method miles month Moon motion move nature nebulae night noted object observations Observatory obtained opposition period Persei photographic planet plate position possible present probably Professor region Report rotation Scheiner seems seen shown side solar spectrum spots surface Tauri telescope theory University VARIABLE STAR visible writes