The astronomy of double stars, including orbital calculation, is given its own section. Author: R. W. Argyle. Contributor: R. W. Argyle (Edited by). The extra information includes the complete Washington Double Star and Tycho-2 Catalogs.
The astronomy of double stars, including orbital calculation, is given its own section. Author: R. W. Argyle. Contributor: R. W. Argyle (Edited by). The extra information includes the complete Washington Double Star and Tycho-2 Catalogs.