# Q77974208

> RR Lyrae variable star in the constellation Leo

**Wikidata**: [Q77974208](https://www.wikidata.org/wiki/Q77974208)  
**Source**: https://4ort.xyz/entity/q77974208


## References

1. SIMBAD
2. The Catalina surveys periodic variable star catalog
3. The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey
4. The SDSS Photometric Catalog, Release 8
5. Gaia Data Release 2
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. Quantifying kinematic substructure in the Milky Way's stellar halo