# 9 Herculis

> star in the constellation Hercules

**Wikidata**: [Q11080509](https://www.wikidata.org/wiki/Q11080509)  
**Source**: https://4ort.xyz/entity/9-herculis


## References

1. SIMBAD
2. High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances
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. APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South
7. Abundances of disk and bulge giants from high-resolution optical spectra. I. O, Mg, Ca, and Ti in the solar neighborhood and Kepler field samples
8. Gaia Data Release 2
9. Abundances of disk and bulge giants from high-resolution optical spectra. V. Molybdenum: The p-process element
10. Abundances of disk and bulge giants from high-resolution optical spectra. III. Sc, V, Cr, Mn, Co, Ni