# Q81831269

> red giant branch star in the constellation Hercules

**Wikidata**: [Q81831269](https://www.wikidata.org/wiki/Q81831269)  
**Source**: https://4ort.xyz/entity/q81831269


## References

1. SIMBAD
2. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
3. Globular and open clusters observed by SDSS/SEGUE: the giant stars
4. Metallicity and Alpha‐Element Abundance Measurement in Red Giant Stars from Medium‐Resolution Spectra
5. The SEGUE stellar parameter pipeline. II. Validation with galactic globular and open clusters
6. Gaia Data Release 2
7. Differences in the rotational properties of multiple stellar populations in M13: a faster rotation for the ‘extreme’ chemical subpopulation
8. Oxygen and sodium abundances in M13 (NGC 6205) giants: linking globular cluster formation scenarios, deep mixing, and post-RGB evolution