Astron. Astrophys. Suppl. Ser. 143, 335-342

Micrometer measurements of double stars made at the Côte D'Azur and Calar Alto observatories

J.F. Ling ^1,2 - C. Prieto ^1,3

1 - Observatorio Astronómico "Ramón María Aller", Universidade de Santiago de Compostela, P.O. Box 197, Santiago de Compostela, Spain
2 - Dpto. Matemática Aplicada, Universidade de Santiago de Compostela, Spain
e-mail: oafana@usc.es
3 - Dpto. Matemática Aplicada, Universidade de Vigo, Spain
e-mail: oacris@usc.es

Received December 3; accepted December 29, 1999

Abstract:

We report 312 micrometer measurements of 155 visual double stars made with the 50 cm refractor at the Côte D'Azur observatory (Nice, France) and with the 152 cm telescope at Calar Alto observatory (Almería, Spain).

Key words: astrometry -- stars: binaries: visual -- method: observational