英语词汇“first point of aries”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

first point of Aries n. one of the two points of the celestial sphere at which the ecliptic cuts the celestial equator, which the sun passes at the vernal equinox and which was formerly in Aries but is now in Pisces, owing to precession.The first point of Aries is the point from which right ascension is measured.

ΚΠ

1594 R. Ashley tr. L. le Roy Interchangeable Course i. f. 8^v When hee hath passed the first point of Aries [Fr. le premier point d'Aries], the dayes become longer then the nightes, to those on the North.

1666 Philos. Trans. 1665–6 (Royal Soc.) 1 173 An unmovable point, which he has supposed to be the first sign of Aries.]

1765 Philos. Trans. 1764 (Royal Soc.) 54 345 Its distance from the first point of Aries..being always equal to the mean longitude of the sun.

1812 R. Woodhouse Elem. Treat. Astron. viii. 53 At the vernal equinox the first point of Aries and the Sun are on the meridian together.

1904 Geogr. Jrnl. 24 413 By setting the first point of Aries to 0 hr., the right ascension of each star could be at once read off with the ruler.

1999 Sphaera 9 2/1 The universal planisphere of Gemma is a projection of the celestial sphere from the first point of Aries onto the plane of the solstitial colures.

单词	first point of aries
释义	> as lemmas first point of Aries first point of Aries n. one of the two points of the celestial sphere at which the ecliptic cuts the celestial equator, which the sun passes at the vernal equinox and which was formerly in Aries but is now in Pisces, owing to precession.The first point of Aries is the point from which right ascension is measured. ΚΠ 1594 R. Ashley tr. L. le Roy Interchangeable Course i. f. 8^v When hee hath passed the first point of Aries [Fr. le premier point d'Aries], the dayes become longer then the nightes, to those on the North. 1666 Philos. Trans. 1665–6 (Royal Soc.) 1 173 An unmovable point, which he has supposed to be the first sign of Aries.] 1765 Philos. Trans. 1764 (Royal Soc.) 54 345 Its distance from the first point of Aries..being always equal to the mean longitude of the sun. 1812 R. Woodhouse Elem. Treat. Astron. viii. 53 At the vernal equinox the first point of Aries and the Sun are on the meridian together. 1904 Geogr. Jrnl. 24 413 By setting the first point of Aries to 0 hr., the right ascension of each star could be at once read off with the ruler. 1999 Sphaera 9 2/1 The universal planisphere of Gemma is a projection of the celestial sphere from the first point of Aries onto the plane of the solstitial colures. extracted from pointn.¹ < as lemmas
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> as lemmas