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premier vertical

prime vertical

sciences naturelles et appliquées - iate.europa.eu

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The development of the classical observatory: from a functional shelter for the telescope to the temple of science... For positional astronomy, observations were mainly carried out in the meridian or in the prime vertical....

général - core.ac.uk - PDF: core.ac.uk

1'×1' vertical deflection and its precision evaluation on china west pacific ocean region... The results show that, the prime vertical component η is slightly larger than the meridian component ξ, and the root mean square error of derived vertical deflection on Southern China Sea where there is...

PDF: doaj.org

Publications scientifiques

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Correct research of the aberration constant by observations in the first vertical

L’auteur s’étonne de la forte valeur que l’on trouve pour la constante de l’aberration, par les observations dans le premier vertical, et de la discordance entre les résultats fournis à un même astronome, par ses observations sur deux étoiles différentes....

...audience: researcher, professional, studentThe author is surprised by the strong value found for the aberration constant, by the observations in the vertical first, and by the conflict between the results provided to a same astronomer, by his observations on two different stars....

général - core.ac.uk - PDF: orbi.uliege.be