# AD Herculis

> Algol variable in the constellation Hercules

**Wikidata**: [Q94701597](https://www.wikidata.org/wiki/Q94701597)  
**Source**: https://4ort.xyz/entity/ad-herculis


## References

1. SIMBAD
2. The Henry Draper Extension Charts: A catalogue of accurate positions, proper motions, magnitudes and spectral types of 86933 stars
3. Washington Double Star Catalog
4. Up-to-date linear elements of eclipsing binaries
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Fourth USNO CCD Astrograph Catalog
7. The Tycho-2 catalogue of the 2.5 million brightest stars
8. Gaia Early Data Release 3
9. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
10. Gaia Data Release 2