Designation system · R
Variable-Star Designation
The scheme for naming variable stars, formalised in the General Catalogue of Variable Stars. Within each constellation the first variables take the letters R through Z, then two-letter combinations RR through ZZ and AA through QZ, and thereafter V335, V336, and so on — a system that grew from a handful of early discoveries into a labelling scheme for tens of thousands of variables.
Highlights
- ›R, S, T… then RR… then V335 onward, per constellation
Related catalogues & sources
Across the catalogue layer
Knowledge connections
- Associated withGeneral Catalogue of Variable Stars (GCVS)
- Associated withVariable & Double Star Catalogues
- Associated withGeneral Catalogue of Variable Stars (GCVS)
- Associated withBayer Designation
Sources
The primary and reference sources this topic draws on.
- IAUInternational Astronomical Union
Official naming, definitions, constellation boundaries, and astronomical nomenclature.