Newsletter 3 of the subgroup T5 of the IAU WG ICRS

Towards a new definition of the CEP

(31 January 2000)

The present Newsletter of the subgroup T5 is devoted to the preliminary conclusions concerning the discussion on the future of the Celestial Ephemeris Pole and contains, in Annex, the individual answers or comments to the questions of the Newsletter 2.

This Newsletter includes the following sections :

• 1. The possible options for an extended definition (c.f. Newsletter 2)


• 2. Summary of the answers and comments to the Newsletter 2


• 3. Considerations on the main issues


• 4. Preliminary proposals


• 5. New questions to the subgroup T5


• Annex : Individual answers and comments to Newsletter 2