| 释义 |
parallactic, a.|pærəˈlæktɪk|
[ad. Gr. παραλλακτικ-ός of or by the parallax, f. verbal adj. *παράλλακτος, f. παραλάσσειν: see parallax.]
Pertaining, relating, or due to parallax.
parallactic inequality: see inequality 4. † parallactic instrument, parallactic telescope, etc.: former names for an equatorial.
1630R. N. tr. Camden's Hist. Eliz. 53 Thomas Digsey, and Iohn Dey..haue learnedly proued by Paralactic Doctrine, that it [new star in Cassiopeia] was in the celestiall, not in the Elementary Region. 1670Blount Glossogr. (ed. 3), Parallactic. 1764Phil. Trans. LIV. 363 The parallactic telescope ought to be nearly of equal goodness with the transit telescope. 1789Piazzi ibid. LXXIX. 59 By the method of parallactic angles. 1834Nat. Philos. III. Astron. iii 84/1 (U.K.S.) The diurnal, or parallactic, libration. 1887Pall Mall G. 10 June 12/1 The parallactic motion of stars has been demonstrated by the Rev. Dr. Pritchard, of Oxford, under a process of making the stars photograph their position, perfected by himself. |