Electro astronomical atlas ... with explanatory notes, questions and answers (1874)
Spoor, J. W. (Joseph W.) · Albany, N.Y., Weed, Parsons and Company · leaf 50
undred and I - reSsf *»*--?*rM orbs except the Sun and Revolution — Indication—Inclination of Orbit with Ecliptic —Inclination of Axis with Plane of Orbit — How Distinguished. Q. What does this indicate ?A. The length of its year.Q. What angle does the inclination of her orbitmake with the Ecliptic… … 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…
Astronomy
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