# 61 Ophiuchi A

> star in the constellation Ophiuchus

**Wikidata**: [Q10948228](https://www.wikidata.org/wiki/Q10948228)  
**Source**: https://4ort.xyz/entity/61-ophiuchi-a


## References

1. SIMBAD
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. Washington Double Star Catalog
4. UBV photometry of stars whose positions are accurately known. VI
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
8. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i
9. Rotational velocities of A-type stars. III. Velocity distributions
10. IRAS Catalogs and Atlases, Version 2. Explanatory Supplement
11. Rotational velocities of A-type stars. IV. Evolution of rotational velocities