Popular Astronomy, Volume 24; Volume 1916

Androm Apelles appear Aquarii Aquilae Aristillus Aurigae bright Camelop canals Cancri Cassiop celestial Cephei Ceti cloud comet constellation Cygni dark Dearborn Observatory December Decl Delphini discovery disk distance Draconis drawings earth eclipse ephemeris Est.Obs faculae Galileo Gemin Goodsell Observatory Greenwich mean Harvard College Observatory Herculis Hydrae Johann Fabricius Jupiter Lacertae latitude Leonis Librae Lick Observatory light longitude Lyrae magnitude Mars meridian miles Mo.Day Monoc month Moon motion nebulae night Observatory Ophiuchi orbit Orionis parallax Pegasi period Persei photographic Pickering planet plate polar POPULAR ASTRONOMY position Professor proper motion Rosa Ursina rotation Sagittae Sagittarii satellites Scheiner Scuti seen solar spots spectrum SS Cygni stellar sun's surface Syrtis Tauri telescope VARIABLE STAR VARIABLE STAR OBSERVATIONS velocity Venus Virginis visible Vulpec Welser Yerkes Observatory