Electro astronomical atlas ... with explanatory notes, questions and answers (1874)
Spoor, J. W. (Joseph W.) · Albany, N.Y., Weed, Parsons and Company · leaf 51
twenty-five days. Comparative dimensions of Venus and the Earth. Moon. LESSON XVIII. Analysis. — Satellite — Venus and Mercury Satellites of the Sun — Evidence — How Discovered — What Names — Diameter — Ap-pearance — Similarity to Moon — Conjunctions — Appearance in Each. Mercury and Venus… … WEED.PARSONS & C?.ALBANY. A.TOLLE.PHOTD. LITH FORM AND SURFACE MARKINGS OF VENUS ELECTRO-ASTRONOMICAL ATLAS. 31 A. Their close proximity to the Sun, and theuniformity of their movements and appear-ance. Q. How can we now easily discover this planetVenus ? A. Because it is the largest and…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Sidereus nuncius : magna, longeque admirabilia spectacula pandens, suspiciendaque proponens vnicuique, praesertim verò philosophis, atq[ue] astronomis, quae à Galileo Galileo ... perspicilli nuper à se reperti beneficio sunt obseruata in lunae facie, fixis innumeris, lacteo circulo, stellis nebulosis, apprime verò in quatuor planetis circa Iouis stellam disparibus interuallis, atque periodis, celeritate mirabili circumuolutis; quos, nemini in hanc vsque diem cognitos, nouissimè author depraehendit primus; atque Medicea sidera nuncupandos decreuit (1610)](https://img.insideoutlibrary.com/img/200/ia-sidereusnunciusm00gali-25-8.webp)
