proper motion

(redirected from Intrinsic motion)
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Related to Intrinsic motion: Intrinsic motivation

proper motion

n.
A gradual change in the position of a star or other object on the celestial sphere that is the result of the object's intrinsic motion through space rather than mere apparent motion as observed from Earth.

proper motion

n
(Astronomy) the very small continuous change in the direction of motion of a star relative to the sun. It is determined from its radial and tangential motion
References in periodicals archive ?
0] = -[phi]c of - [phi][rho]'* relative to our intrinsic metric space [phi][rho]' and our Euclidean 3-space [SIGMA]' are absolute intrinsic speeds, which are not made manifest in actual intrinsic motion.
0'], it is not in intrinsic motion at the intrinsic speed [phi]c along [phi][[rho].
The observations made from system (2) and system (3) described in the foregoing paragraph make the concept of intrinsic affine spacetime induction relevant in relative intrinsic motion of two intrinsic spacetime frames of reference.
Kersten examines coding processes involving motion events and puts forward the thesis that there is a "division of labor" between nouns and relational terms in describing motion events, showing the tendency to code intrinsic motion (information on the manner of motion), while the prototypical relational term codes motion with reference to an external frame of reference, for example, path information.
It may be hypothesized "whether learning to shift attention toward intrinsic motion in the context of verb learning encourages English speakers to generally attend more strongly to the manner of motion than do Spanish speakers, even outside of a verb-learning context," and Kersten supposes this might be a consequence of the "linguistic relativity hypothesis (.
of the observer's intrinsic frame by intrinsic angle [phi][psi] = [pi]/2, corresponding to intrinsic speed [phi]v = [phi]c of relative intrinsic motion, can be avoided in the process of rotation by [phi][psi] > [pi]/2.
7 of [3]), is the intrinsic mass relation in the context of absolute intrinsic motion to be derived formally elsewhere.
Corresponding to relations (3) and (4) in the contexts of absolute intrinsic motion and absolute motion, there are the intrinsic mass relation in the context of relative intrinsic motion (or in the context of intrinsic special theory of relativity ([phi]SR)) and mass relation in the context of relative motion (or in the context of SR).
According to this theory, nouns tend to convey intrinsic motion, or motion defined with respect to a frame of reference internal to the object carrying it out.
When path-specifying verbs are used, there is a clear division of labor between nouns and verbs, with verbs conveying extrinsic motion and nouns conveying intrinsic motion.
in the Euclidean 3-space [SIGMA] of the flat four-dimensional spacetime ([SIGMA], ct) relative to an observer in ([SIGMA], ct), the intrinsic mass [phi]m performs intrinsic motion at intrinsic speed [phi][upsilon] in the one-dimensional intrinsic space [phi][rho] of the flat two-dimensional intrinsic spacetime ([phi][rho], [phi]c[phi]t) relative to the observer in ([SIGMA], ct), where [absolute value of [phi][upsilon]] = [absolute value of [?
Finally in the ansatz being presented in this sub-section, the intrinsic motion of the intrinsic rest mass [phi][m.