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Article Dans Une Revue Highlights of Astronomy Année : 2010

Implementation of the IAU 2000 definition of UT1 in astronomy

Résumé

We recall the concepts and nomenclature associated with the IAU 2000 definition of UT1 as function of the Earth rotation angle (ERA). We comment on the complications that arise when UT1 is regarded as both an angle and a time scale. We review the IAU 2006 expressions for the position of the celestial intermediate origin (CIO) and the equation of the origins, and the associated CIO and equinox based procedures for the celestial-to-terrestrial transformation.

Dates et versions

obspm-03855237 , version 1 (16-11-2022)

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Citer

Nicole Capitaine, Patrick T. Wallace. Implementation of the IAU 2000 definition of UT1 in astronomy. Highlights of Astronomy, 2010, 15, pp.212-212. ⟨10.1017/S1743921310008823⟩. ⟨obspm-03855237⟩
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