Electro astronomical atlas ... with explanatory notes, questions and answers (1874)
Spoor, J. W. (Joseph W.) · Albany, N.Y., Weed, Parsons and Company · leaf 48
t are nodes ? Q. When can a transit never occur ? A. The points at which a planets orbit crosses A. When the interior planet is in or very near the plane of the Ecliptic. the Ecliptic. Q. When do all transits of Mercury take Q. When a transit takes place, what must be place ? the condition of the… … Fig. u Transits of Mercury over the Sun, 1° the 12th November, 1861,3° the5th November, 1868. Q. What are these months called ?A. They are called node months. Note.— The Earth passes the ascending node of Mercury inNovember, and the descending node in May. The former ofwhich is in the 16th degree…
Astronomy
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![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-20-5.webp)
