...In thesix weeks in which Mercury moves from aphelion to perihelion, itapproaches the Sun by fourteen millions of miles, and the heat received byit is increased 2½ times...
E. Walter Maunder 「Are the Planets Inhabited?」
...Ifthe comet be a periodic one, the same series of changes may take placeat its next return to perihelion...
Robert Stawell Ball 「The Story of the Heavens」
...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」
...In 1892 the comet ought again to have returned to perihelion,but in that year no meteors were seen on the 27th November, while manywere seen on the 23rd from the same radiant...
Robert Stawell Ball 「The Story of the Heavens」
...Elkin whenit was very near perihelion, was as large as the moon...
George C. Comstock 「A Text-Book of Astronomy」
...Hence each planet is nearer to the sun at one partof its orbit than another; that point is called the perihelion,and the farthest point aphelion...
Henry Warren 「Recreations in Astronomy」
...
Distance from the sun, perihelion, 457,000,000 miles; aphelion,503,000,000 miles...
Henry Warren 「Recreations in Astronomy」
...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」
...Besidesthose already mentioned there are many comets with orbits of such markedeccentricity that their ellipses when near perihelion cannot bedistinguished from parabolæ...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...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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