# 18 Ophiuchi

> star in the constellation Ophiuchus

**Wikidata**: [Q12065869](https://www.wikidata.org/wiki/Q12065869)  
**Source**: https://4ort.xyz/entity/18-ophiuchi


## References

1. SIMBAD
2. Source
3. The Tycho-2 catalogue of the 2.5 million brightest stars
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. Gaia Early Data Release 3
6. Gaia Data Release 2