Astrometric Spectroscopic Binary Star Orbits. III. Alpha Ophiuchi and Delta Aquilae
Abstract
Improved orbits are derived for the well-known astrometric binaries Alpha Ophiuchi and Delta Aquilae from a combination of photographic astrometric observations and cross-correlation radial velocities. In addition, for Alpha Ophiuchi, infrared speckle observations have made possible the derivation of complete orbital elements and an estimate of the component masses.
- Publication:
-
The Astronomical Journal
- Pub Date:
- August 1989
- DOI:
- 10.1086/115169
- Bibcode:
- 1989AJ.....98..686K
- Keywords:
-
- Astrometry;
- Binary Stars;
- Ophiuchi Clouds;
- Stellar Orbits;
- Cross Correlation;
- Infrared Interferometers;
- Radial Velocity;
- Stellar Parallax;
- Astronomy;
- STARS: BINARIES;
- STARS: INDIVIDUAL