Parallactic-ellipse
noun, Astronomy.
1.
the apparent ellipse, as seen against the background of more distant stars, described annually by a nearby star because of the earth’s orbital motion around the sun.
Compare (def 2).
Read Also:
- Parallactic-motion
noun, Astronomy. 1. the apparent motion of stars due to the earth’s orbital motion.
- Parallax
[par-uh-laks] /ˈpær əˌlæks/ noun 1. the apparent displacement of an observed object due to a change in the position of the observer. 2. Astronomy. the apparent angular displacement of a celestial body due to its being observed from the surface instead of from the center of the earth (diurnal parallax or geocentric parallax) or due […]
- Parallaxis
language A procedural programming language developed by Thomas Braeunl at the University of Stuttgart. It is based on Modula-2, but extended for data parallel (SIMD) programming. The main approach for machine independent parallel programming is to include a description of the virtual parallel machine with each parallel algorithm. There is a simulator and X Window […]
- Parallax test
parallax test n. Measurement of the deviation in strabismus by the alternate cover test, combined with neutralization of the deviation using prisms.
- Parallel
[par-uh-lel, -luh l] /ˈpær əˌlɛl, -ləl/ adjective 1. extending in the same direction, equidistant at all points, and never converging or diverging: parallel rows of trees. 2. having the same direction, course, nature, or tendency; corresponding; similar; analogous: Canada and the U.S. have many parallel economic interests. 3. Geometry. 4. Electricity. consisting of or having […]