# Tau Ophiuchi

> star in the constellation Ophiuchus

**Wikidata**: [Q66477105](https://www.wikidata.org/wiki/Q66477105)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Tau_Ophiuchi)  
**Source**: https://4ort.xyz/entity/tau-ophiuchi


## References

1. A catalogue of multiplicity among bright stellar systems
2. SIMBAD
3. Study of the F-type stars. I. MK spectral types
4. Washington Double Star Catalog
5. Freebase Data Dumps
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Sloan magnitudes for the brightest stars
8. Validation of the new Hipparcos reduction
9. SB9: The ninth catalogue of spectroscopic binary orbits
10. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)