# HY Boötis
**Wikidata**: [Q87772918](https://www.wikidata.org/wiki/Q87772918)  
**Source**: https://4ort.xyz/entity/hy-bo-tis


## References

1. SIMBAD
2. VizieR
3. Spectra of type II cepheid candidates and related stars
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Photometry of type II Cepheid candidates from the northern part of the All Sky Automated Survey
7. Gaia Data Release 2