Electro astronomical atlas ... with explanatory notes, questions and answers (1874)
Spoor, J. W. (Joseph W.) · Albany, N.Y., Weed, Parsons and Company · leaf 119
e longitude of the Perihelion. 2dThe longitude of theAscending Nodes. 3d.The inclination of theplane of the Ecliptic.4th. The eccentricity.5th. The direction ofthe motion. 6th. ThePerihelion distancefrom the Sun. Q. The elements ofhow many Cometaryorbits have been com-puted % A. More than… … Fig. ORBITS OI Q. Of these how many have re-appeared ?A. Of the shorter class seven have re-appearedand been identified and established by an entirecorrespondence of theirelements. Q. Which of these ismost distinguished % A. The Comet Encke;its period has beenabout three and a-halfyears, and…
Astronomy
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