# BB Herculis

> classical Cepheid variable star in the constellation Hercules

**Wikidata**: [Q87377403](https://www.wikidata.org/wiki/Q87377403)  
**Source**: https://4ort.xyz/entity/bb-herculis


## References

1. SIMBAD
2. VizieR
3. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
4. Spectra of type II cepheid candidates and related stars
5. Gaia Data Release 2
6. A three-dimensional map of the Milky Way using classical Cepheid variable stars
7. The first INTEGRAL-OMC catalogue of optically variable sources
8. Reclassification of Cepheids in the Gaia Data Release 2. Period-luminosity and period-Wesenheit relations in the Gaia passbands
9. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
10. Gaia Early Data Release 3
11. Barium abundances in Cepheids