# SZ Herculis

> Algol variable in the constellation Hercules

**Wikidata**: [Q88791716](https://www.wikidata.org/wiki/Q88791716)  
**Source**: https://4ort.xyz/entity/sz-herculis


## References

1. SIMBAD
2. VizieR
3. MK classifications of some northern hemisphere binary systems
4. General Catalogue of Variable Stars, 3rd ed.
5. Orbital period changes and the higher-order multiplicity fraction amongst SuperWASP eclipsing binaries
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. Fourth USNO CCD Astrograph Catalog
9. Gaia Early Data Release 3
10. Gaia Data Release 2