# Q82557073

> RR Lyrae variable star in the constellation Draco

**Wikidata**: [Q82557073](https://www.wikidata.org/wiki/Q82557073)  
**Source**: https://4ort.xyz/entity/q82557073


## References

1. SIMBAD
2. The spectrum of BC Draconis
3. Gaia Data Release 2
4. Mid-infrared period-luminosity relations of RR Lyrae stars derived from the AllWISE Data Release
5. The first INTEGRAL-OMC catalogue of optically variable sources
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. The Tycho-2 catalogue of the 2.5 million brightest stars
8. Gaia Early Data Release 3
9. The luminosities and distance scales of type II Cepheid and RR Lyrae variables