Correlation of the HIPPARCOS and Allegheny Observatory Parallax Catalogs

Details Correlation of the HIPPARCOS and Allegheny Observatory Parallax Catalogs Correlation of the HIPPARCOS and Allegheny Observatory Parallax Catalogs

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aj....116.1501g&link_type=abstract

The Astronomical Journal, Volume 116, Issue 3, pp. 1501-1503.

Astronomy and Astrophysics

Astronomy

11

Astrometry

Scientific paper

No significant difference is found between the systems of the Hipparcos and Allegheny Observatory MAP parallax catalogs. The correlation of the parallaxes of 63 stars common to both programs is 0.9995 +/- 0.0001, with an average standard deviation of the difference of 0.0023". While there is no indication of systematic difference in the two programs, our study suggests that the formal errors in one or both catalogs are somewhat underestimated.

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