# Q77988694

> horizontal branch star in the constellation Hercules

**Wikidata**: [Q77988694](https://www.wikidata.org/wiki/Q77988694)  
**Source**: https://4ort.xyz/entity/q77988694


## References

1. SIMBAD
2. The SDSS Photometric Catalog, Release 8
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. Gaia Data Release 2
5. Quantifying kinematic substructure in the Milky Way's stellar halo
6. The Milky Way's circular velocity curve to 60 kpc and an estimate of the dark matter halo mass from the kinematics of ~2400 SDSS blue horizontal-branch stars