Abstract
Corrections to Newcomb's lunisolar precession and to motion of the equinox are evaluated from proper motions of 77 Cepheids, employing recently determined values of their distances. Results are diverse, depending on the weighting method. If the effect of the cosmic dispersion is neglected andω 0 is imposed to be 25 km/s/kpc, thenΔp 1=1″.1±0″.2 andΔλ′ +Δe = 1″.0 ± 0″.1 per century in the FK4 system.
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Sinzi, A.M. Corrections to the lunisolar precession and the motion of the equinox from proper motions of Cepheids. Celestial Mechanics 4, 273–276 (1971). https://doi.org/10.1007/BF01228830
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DOI: https://doi.org/10.1007/BF01228830