# Q89518781

> red giant branch star in the constellation Cygnus

**Wikidata**: [Q89518781](https://www.wikidata.org/wiki/Q89518781)  
**Source**: https://4ort.xyz/entity/q89518781


## References

1. SIMBAD
2. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
3. WIYN open cluster study. LX. Spectroscopic binary orbits in NGC 6819
4. Gaia Data Release 2
5. Spectroscopic determination of masses (and implied ages) for red giants
6. Strömgren Survey for Asteroseismology and Galactic Archaeology: Let the Saga Begin
7. Surface rotation of Kepler red giant stars