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The Collaborative International Dictionary
Parallactic

Parallactic \Par`al*lac"tic\, Parallactical \Par`al*lac"tic*al\, a. [Cf. F. parallactique.] Of or pertaining to a parallax.

Wiktionary
parallactic

a. Of or pertaining to parallax

Wikipedia

Usage examples of "parallactic".

Arcturus: of the precession of equinoxes: of Orion with belt and sextuple sun theta and nebula in which 100 of our solar systems could be contained: of moribund and of nascent new stars such as Nova in 1901: of our system plunging towards the constellation of Hercules: of the parallax or parallactic drift of socalled fixed stars, in reality evermoving wanderers from immeasurably remote eons to infinitely remote futures in comparison with which the years, threescore and ten, of allotted human life formed a parenthesis of infinitesimal brevity.