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Main Catalogue Description

WARNING : the field numbers of the Main Catalogue are not identical to those of the printed version as some useful information has been added.

The description of the data given below follows the order of the columns of the Hipparcos Input Catalogue. Further explanations, along with relevant information on how the data were collected and selected, are included in smaller type. Full names and references of all catalogues are given at the end of this introduction (page gif). In general, the number of decimals retained provides an indication of the precision of the data.

The Meudon Hipparcos Input Catalogue Team
mer 16 nov 15:51:31 MET 1994