Galactic Star Catalog and the Tables Proposed by Innes

G. F. Paddock
1914 Publications of the Astronomical Society of the Pacific  
The essential principle for a permanent star catalog must be a system of invariable co-ordinates. The equatorial co-ordinates which have always been used are continually changing because of precession of the equinox. A natural system would be one related to the natural features of the stellar system. Mr.
doi:10.1086/122315 fatcat:fgd2j4rolndf3klwhvmrcd6flm