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Aphelion   Listen
noun
Aphelion  n.  (pl. aphelia)  (Astron.) That point of a planet's or comet's orbit which is most distant from the sun, the opposite point being the perihelion.






Collaborative International Dictionary of English 0.48








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"Aphelion" Quotes from Famous Books



... comets have been found with elliptic orbits, whose aphelion distances are all about the same as Jupiter's mean distance; and six have an aphelion distance about ten per cent, greater than Neptune's mean distance. Other comets are similarly associated with the planets Saturn ...
— History of Astronomy • George Forbes

... reverse of what we are warranted by the word of God to expect. "All that will live godly in Christ Jesus shall suffer persecution." If ever this was true in the history of the church, we may expect it to be emphatically so when, in the last days, the world is in its aphelion as related to God, and the wicked touch their lowest depths ...
— The United States in the Light of Prophecy • Uriah Smith

... said Servadac, with a smile, "you have determined the perihelion of our orbit; but how about the aphelion? Can you form a judgment as to what distance we are likely to ...
— Off on a Comet • Jules Verne

... discovery of Hygeia. This last discovery has probably given the death-blow to the theory of Olbers. The orbit of Hygeia completely incloses the orbits of several of the asteroids, its perihelion distance—that is, its least distance from the sun—exceeding the aphelion—or greatest distance—of Flora by twenty-five millions of miles. No change of position of the orbits could, therefore, bring these orbits to ...
— Fables of Infidelity and Facts of Faith - Being an Examination of the Evidences of Infidelity • Robert Patterson

... But this heat, fully capable of turning the rocks into glass and the oceans into vapor, before proceeding to such extremity, must have first formed a thick interposing ring of clouds, and thus considerably modified the excessive temperature. Therefore, between the extreme cold of the aphelion and the excessive heat of the perihelion, by the great law of compensation, it is probable that the mean temperature would ...
— All Around the Moon • Jules Verne

... that shakes the head as in the porcelain toys on our mantel-pieces, asthma that shakes the whole fabric—these they absolutely fancy themselves to see. They absolutely hear the tellurian lungs wheezing, panting, crying, 'Bellows to mend!' periodically as the Earth approaches her aphelion. ...
— Narrative And Miscellaneous Papers • Thomas De Quincey

... nearest to us in our (northern) winter. In other words, the earth's axis is inclined so as to tilt its north pole away from the sun at perihelion, or when the earth is at the part of its elliptic orbit nearest the sun's focus; and to tilt it towards the sun at aphelion. The result of this present state of things is to diminish the intensity of the average northern winter and of the average northern summer, and on the other hand to aggravate the extremes of temperature in the southern hemisphere; all other things being equal. Of course other things are not equal, ...
— Pioneers of Science • Oliver Lodge

... common rule. An irregularity in the motion of a planet by which it deviates from the aphelion or apogee.—Mean anomaly formerly signified the distance of a planet's mean place from the apogee: it is the angular distance of a planet or comet from perihelion supposing it to have moved with its mean velocity.—True anomaly, ...
— The Sailor's Word-Book • William Henry Smyth

... can make you or break you in the spotel business. That's where we were lucky. The one we applied for was a nice low-eccentric ellipse with the perihelion and aphelion figured just right to intersect the Mars-Venus-Earth spacelanes, most of the holiday traffic to the Jovian Moons, and once in a while we'd get ...
— The Love of Frank Nineteen • David Carpenter Knight



Words linked to "Aphelion" :   apoapsis, point of apoapsis, perihelion



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