Conversion of positions and proper motions from B1950.0 to the IAU system at J2000.0
Abstract
The complete transformation of positions and proper motions from B1950.0 to J2000.0 on the basis of IAU recommendations including the transition from FK4 to FK5 equinox may be rigorously accomplished with a simple vector equation. The equation is first presented in this paper and then subsequently derived. The transformation of the FK4 to FK5 system described by functions f(alpha, delta, m) is in preparation in Heidelberg.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- November 1982
- Bibcode:
- 1982A&A...115...20S
- Keywords:
-
- Astronomical Catalogs;
- Stellar Motions;
- Matrices (Mathematics);
- Tables (Data);
- Transformations (Mathematics);
- Astronomy