4. Ephemerides

Extract

This Report is compiled by using the reports of the Directors of the national ephemeris offices reviewing the programs for the preparation and publication of astronomical ephemerides of variuos purposes, i.e. for astronomers and space scientists, marine and air navigators, and surveyors. Some proposals of Commission members are also included. The Report may be of interest also to other I.A.U. Commissions, and mainly to Commissions 7, 8 and 31. Principal topics belonging to the Commission competence and some items to be presented to the XVIIth General Assembly of the I.A.U. in Montreal will be reviewed in following comments.