# Q77977768

> RR Lyrae variable star in the constellation Ursa Major

**Wikidata**: [Q77977768](https://www.wikidata.org/wiki/Q77977768)  
**Source**: https://4ort.xyz/entity/q77977768


## References

1. SIMBAD
2. Machine-learned Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1 Sample
3. Probing the outer galactic halo with RR Lyrae from the Catalina surveys
4. The Pan-STARRS release 1 (PS1) Survey - DR1
5. The SDSS Photometric Catalog, Release 7
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Data Release 2
8. 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