Ball, R[obert] S[tawell], Sir, 1840- [from old catalog] · New York, H. Holt and company · leaf 83
t marked v, moving inthe direction of the arrow.From l draw the tangentThen, as Venus is movingtowards the tangent l t, the planet will appear to anobserver stationed at l to be moving awajr from thesun, inasmuch as the angle vl s is continually in-creasing. As Venus approaches t, it gradually… … lt to the orbit of Venus. Motion of Venus. 65 to 470. As Venus continues its motion it againbegins to return towards the sun, until in the positiona it passes between the earth and the sun. Stillmoving on, it reaches the point Q, which is the point ofcontact of the second tangent drawn from l.…
Astronomy
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