# Q77987839

> horizontal branch star in the constellation Ursa Major

**Wikidata**: [Q77987839](https://www.wikidata.org/wiki/Q77987839)  
**Source**: https://4ort.xyz/entity/q77987839


## References

1. SIMBAD
2. The SDSS Photometric Catalog, Release 7
3. The SDSS Photometric Catalog, Release 8
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
7. Faint blue objects at high galactic latitude. IV. Palomar Schmidt fields centered on selected areas 55 and 94