# 2 Sagittarii

> binary star system in the constellation Ophiuchus

**Wikidata**: [Q66491423](https://www.wikidata.org/wiki/Q66491423)  
**Source**: https://4ort.xyz/entity/2-sagittarii


## References

1. Washington Double Star Catalog
2. SIMBAD
3. Source
4. Flamsteed's Missing Stars
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Early Data Release 3
8. Gaia Data Release 2