The potential for astrometry in the infrared
Abstract
Infrared interferometry promises to be a useful astrometric technique. Preliminary measurements of the star alpha Orionis made with a heterodyne interferometer exhibit phase coherence over a period of at least 1000 seconds. The measurements were equivalent to a positional determination of 60 milliarcsecond accuracy every 5 seconds of integration.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1978
- Bibcode:
- 1978STIN...7831017S
- Keywords:
-
- Astrometry;
- Infrared Astronomy;
- Infrared Interferometers;
- Orion Constellation;
- Stars;
- Heterodyning;
- Laser Outputs;
- Phase Coherence;
- Power Spectra;
- Astronomy