# IW Herculis

> long period variable

**Wikidata**: [Q91953638](https://www.wikidata.org/wiki/Q91953638)  
**Source**: https://4ort.xyz/entity/iw-herculis


## References

1. SIMBAD
2. VizieR
3. General Catalogue of Variable Stars, 3rd ed.
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. Third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3)
7. Gaia Early Data Release 3
8. Gaia Data Release 3
9. Gaia Data Release 2