Parallax programs at sub-mas accuracy level
We present here the various parallax programs developed at Bordeaux Observatory. We show how the observing strategy, the methods of treatment and the global astrometric treatment allows us to reach sub-milliarcsecond parallaxes with observations performed with 4 meter-class telescopes. We present an ongoing program of distance determination to the TW Hydrae association.
Revista Mexicana de Astronomia y Astrofisica Conference Series
- Pub Date:
- December 2008