...On the day of, and that following, its perihelion, itcould be detected with the unaided eye in full daylight, enthroned inthe Heavens beside the dazzling solar luminary... 
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」
...Clairaut, assisted by Lalande, found that Saturn would retard thecomet 100 days, Jupiter 518 days, and predicted its return to perihelion onApril 13th, 1759...
George Forbes 「History of Astronomy」
...Strength was lent to this hypothesis by the fact that the comet of 1882 was apparently torn asunder during its perihelion passage, retreating into space in a dissevered state...
Garrett Serviss 「Curiosities of the Sky」
... What had happened was that the comet in passing its perihelion point had swung exactly between the earth and the sun...
Garrett Serviss 「Curiosities of the Sky」
...It passed the perihelion on the 13thAugust, 1770, and again in 1776, but in the latter year it was notconveniently situated for being seen from the earth...
Robert Stawell Ball 「The Story of the Heavens」
...When at its perihelion it was movingwith a velocity of 300 miles per second! This very unusualvelocity was due to the comet's extraordinarily close approachto the sun...
George C. Comstock 「A Text-Book of Astronomy」
...These tables have, however,been deviating from the true motion of the planet, owing to the motionof the perihelion of Mercury, subsequently discovered by Le Verrierhimself...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
...These follow the comet to perihelion, and precede it afterward(Fig...
Henry Warren 「Recreations in Astronomy」
...
Distance from the sun, perihelion, 457,000,000 miles; aphelion,503,000,000 miles...
Henry Warren 「Recreations in Astronomy」
...It is a little nearer the Sun on January 1st than on July 1st, atits perihelion (peri, near, helios, Sun), than at its aphelion(apo, far, helios, Sun)...
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」
...At perihelion it is 31 millions of miles from the Sun;one-third the distance of the Earth...
E. Walter Maunder 「Are the Planets Inhabited?」
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