Perspective secular changes in stellar proper motion, radial velocity and parallax

  • van de Kamp P
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This article deals primarily with secular changes in proper motion, a subject of interest for its own sake but also for the determination of radial velocity, independent of Doppler shift. The effect of the proper motions of background stars is evaluated; the effect of acceleration on orbital motion is discussed. A An illustration of a well-determined secular acceleration is that of Barnard's star; other promising stars are listed. © 1977.

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  • Peter van de Kamp

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