# Q81821711

> red giant branch star in the constellation Hercules

**Wikidata**: [Q81821711](https://www.wikidata.org/wiki/Q81821711)  
**Source**: https://4ort.xyz/entity/q81821711


## References

1. SIMBAD
2. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
3. Mass outflow and chromospheric activity of red giant stars in globular clusters. II. M13 and M92
4. Gaia Data Release 2
5. Oxygen and sodium abundances in M13 (NGC 6205) giants: linking globular cluster formation scenarios, deep mixing, and post-RGB evolution
6. Exploring anticorrelations and light element variations in northern globular clusters observed by the APOGEE survey