# Delta Ophiuchi

> star

**Wikidata**: [Q543080](https://www.wikidata.org/wiki/Q543080)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Delta_Ophiuchi)  
**Source**: https://4ort.xyz/entity/delta-ophiuchi


## References

1. SIMBAD
2. New Catalogue of Suspected Variable Stars
3. A standard stellar spectral sequence in the red/near-infrared - Classes K5 to M9
4. Spectral Classification
5. The Perkins catalog of revised MK types for the cooler stars
6. VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)
7. Freebase Data Dumps. 2013
8. Catalogue of Stellar Photometry in Johnson's 11-color system
9. Gaia Data Release 3
10. Gaia Early Data Release 3
11. APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South
12. Stellar population models in the UV. I. Characterisation of the New Generation Stellar Library
13. The atmospheric parameters and spectral interpolator for the MILES stars
14. HST Low-resolution Stellar Library
15. Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity