Statistical analysis of trigonometric stellar parallaxes

Details Statistical analysis of trigonometric stellar parallaxes Statistical analysis of trigonometric stellar parallaxes

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....58..377b&link_type=abstract

Astronomy and Astrophysics, vol. 58, no. 3, June 1977, p. 377-383.

Astronomy and Astrophysics

Astrophysics

5

Error Analysis, Parallax, Statistical Analysis, Stellar Spectra, Trigonometric Functions, Astronomical Catalogs, Correction, Graphs (Charts)

Scientific paper

Attention is drawn to the systematic errors of trigonometric parallaxes. Corrections are proposed for several stations (including Allegheny), graphically related to the coordinates and the spectral type of the parallax star. They were derived by comparing 1660 trigonometric parallaxes with the corresponding spectroscopic parallaxes. The weighted mean of all corrections is 0.005 arc s. The same result is obtained by comparing the frequency distribution of the relative parallaxes with a theoretically derived distribution function. The mean correction values for seven observatories are applied to the Hyades.

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