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Trigonometric parallax discrepancies in space telescopes measurements I: The case of the stellar binary system Hip 84976

Al-Wardat, Mashhoor A.; Hussein, Abdallah M.; Widyan, Hatem +1 more

In addition to the complete set of fundamental parameters of its individual components, we present the solution for the discrepancy between the two main astrometric space telescopes Gaia and Hipparcos, in their measurements of the trigonometric parallax for the stellar binary system Hip 84976. In our analysis of the system, we followed Al-Wardat's…