aphelionn.

Brit.

/əˈfiːlɪən/,

/apˈhiːlɪən/, U.S.

/əˈfiljən/

Forms: Plural aphelia.

Etymology: Græcized form of modern Latin aphēlium, < Greek ἀϕ' = ἀπό off, from + ἥλιος sun; formed, by Kepler, after the apogæum , ἀπόγαιον , of the Ptolemaic astronomy (see Prodr. dissert. cosmographicarum, 1596, and Epitome astronom. Copernic. 1618). Aphelium was also the earlier form in English; compare parhelion n., Greek παρήλιον. French has aphélie, like apogée.

Astronomy.

1. That point of a planet's or comet's orbit at which it is farthest from the sun.

ΘΚΠ

the world > the universe > heavenly body > movement of heavenly bodies > [noun] > movement in orbit > orbit > parts of orbit

aphelion1656

perihelion1666

vector1704

elongation1708

orb1733

periaster1851

orbitale1901

Lagrangian point1962

1656 tr. T. Hobbes Elements Philos. iv. xxvi. 329 The Apogæum of the Sunne, or the Aphelium of the Earth ought to be about the 28th degree of Cancer.

1676 E. Halley Let. in S. P. Rigaud & S. J. Rigaud Corr. Sci. Men 17th Cent. (1841) (modernized text) I. 237 The Aphelion, Eccentricities, and Proportions of the Orbs of the Primary Planets.

1794 R. J. Sulivan View of Nature II. 410 Of these distances, the least of all is called the perihelium, and the greatest the aphelium.

1837 W. Whewell Hist. Inductive Sci. II. vii. ii. 170 The aphelia of Mercury, Venus, the Earth, and Mars, slightly progress.

1880 A. R. Wallace Island Life viii. 132 The effect is intensified by winter being there in aphelion.

2. figurative.

ΚΠ

1845 H. Rogers Ess. I. iii. 137 The dark aphelion of the eccentric orbit in which the church of Christ had wandered.

1858 T. P. Thompson Audi Alteram Partem (1859) II. lxxvi. 29 France, which is just now in what astronomers call the aphelion or furthest point of political cold.

This entry has not yet been fully updated (first published 1885; most recently modified version published online December 2021).

单词	aphelion
释义	aphelionn. Brit. /əˈfiːlɪən/, /apˈhiːlɪən/, U.S. /əˈfiljən/ Forms: Plural aphelia. Etymology: Græcized form of modern Latin aphēlium, < Greek ἀϕ' = ἀπό off, from + ἥλιος sun; formed, by Kepler, after the apogæum , ἀπόγαιον , of the Ptolemaic astronomy (see Prodr. dissert. cosmographicarum, 1596, and Epitome astronom. Copernic. 1618). Aphelium was also the earlier form in English; compare parhelion n., Greek παρήλιον. French has aphélie, like apogée. Astronomy. 1. That point of a planet's or comet's orbit at which it is farthest from the sun. ΘΚΠ the world > the universe > heavenly body > movement of heavenly bodies > [noun] > movement in orbit > orbit > parts of orbit aphelion1656 perihelion1666 vector1704 elongation1708 orb1733 periaster1851 orbitale1901 Lagrangian point1962 1656 tr. T. Hobbes Elements Philos. iv. xxvi. 329 The Apogæum of the Sunne, or the Aphelium of the Earth ought to be about the 28th degree of Cancer. 1676 E. Halley Let. in S. P. Rigaud & S. J. Rigaud Corr. Sci. Men 17th Cent. (1841) (modernized text) I. 237 The Aphelion, Eccentricities, and Proportions of the Orbs of the Primary Planets. 1794 R. J. Sulivan View of Nature II. 410 Of these distances, the least of all is called the perihelium, and the greatest the aphelium. 1837 W. Whewell Hist. Inductive Sci. II. vii. ii. 170 The aphelia of Mercury, Venus, the Earth, and Mars, slightly progress. 1880 A. R. Wallace Island Life viii. 132 The effect is intensified by winter being there in aphelion. 2. figurative. ΚΠ 1845 H. Rogers Ess. I. iii. 137 The dark aphelion of the eccentric orbit in which the church of Christ had wandered. 1858 T. P. Thompson Audi Alteram Partem (1859) II. lxxvi. 29 France, which is just now in what astronomers call the aphelion or furthest point of political cold. This entry has not yet been fully updated (first published 1885; most recently modified version published online December 2021). < n.1656
随便看	acholias acholic acholis acholous acholuria acholuric achondrite achondrites achondritic achondroplasia achondroplasiac achondroplasias achondroplasic achondroplastic achondroplastic dwarfism achoo achoose achor achrist achristism achroite achromat achromat lens achromatic achromatically