A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 66
an interior planet is in this plane, as shown at A,it may appear to be upon the suns disk; but if it is either above or below the ecliptic,as shown at B and 0, it will appear to pass either above or below the sun, as shown atD and E. 112. A transit can never occur except when the inte-rior planet… … This cut represents the ecliptic and zodiac, with the orbit of an interior planet, hisnodes, &c. The line of his nodes is, as shown, in the 16° of b and the 16° of TTL-Now if the earth is in b, on the line L N, as shown in the cut, when Mercury is athis ascending node ( Q ), he will seem to…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
