Catalogue · TYC · 2000
Tycho-2 Catalogue
An astrometric and photometric catalogue of about 2.5 million of the brightest stars, derived from the star-mapper data of ESA's Hipparcos satellite. Named in honour of Tycho Brahe, it provides positions, proper motions, and two-colour photometry, and its 'TYC' identifiers are a standard reference for stars fainter than the main Hipparcos catalogue.
Highlights
- ›~2.5 million stars from the Hipparcos star mapper
Related catalogues & sources
Across the catalogue layer
Knowledge connections
- Associated withAstrometric Star Catalogues
- Associated withHipparcos Catalogue
- Associated withTycho Brahe
- Associated withESA
- Associated withAstrometric Star Catalogues
Sources
The primary and reference sources this topic draws on.
- IAUInternational Astronomical Union
Official naming, definitions, constellation boundaries, and astronomical nomenclature.