Popis: |
Nearly 250 close visual binaries have been observed using the area scanner photometer since 1973. The observations were carried out at Figl-Observatory, Austria, Mauna Kea Observatory, Hawaii, and European Southern Observatory, Chile. Through the generous help of the Director of the Institute for Astronomy in Honolulu, Prof. Dr. John T. Jefferies, the 24 inch telescope on Mauna Kea was available for this program. Also the Directorate of ESO has kindly made available the 100 cm and 50 cm telescopes for this purpose. |