Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26as...70..193c&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 70, no. 2, Aug. 1987, p. 193-199. In French.
Astronomy and Astrophysics
Astrophysics
14
Astrometry, Binary Stars, Double Stars, Refracting Telescopes, Visual Observation, High Resolution, Micrometers, Telescopes
Scientific paper
Fifty visual measures of 37 very close binaries observed with the 2-m telescope at Pic du Midi are presented together with 601 measures of 245 close binaries observed with the 74-cm and 50-cm refractors at Nice. All measurements were made by micrometer with illuminated wires. With the 2-m telescope, binaries as close as 0.07 arcsec are separated, using magnifying powers from 2500 to 5000.
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