Optical position of alpha Scorpii A.
Abstract
A precise value of the right ascension of the radio star α Scorpii A has been determined in the FK4 system with a Danjon astrolabe at Santiago, Chile. The results obtained during two periods of observations are fairly consistent, and are coincident with those obtained with a Danjon astrolabe at Valinhos, Brasil and radio results obtained with the VLA. The astrolabe and VLA observations have mean epochs between 1982 and 1985.4.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- May 1987
- Bibcode:
- 1987A&A...177..310N
- Keywords:
-
- Astrometry;
- Position (Location);
- Radio Stars;
- Stellar Motions;
- Astrolabes;
- Astronomical Coordinates;
- Inertial Reference Systems;
- Very Large Array (Vla);
- Astronomy