# Q90515093

> RR Lyrae variable star in the constellation Serpens

**Wikidata**: [Q90515093](https://www.wikidata.org/wiki/Q90515093)  
**Source**: https://4ort.xyz/entity/q90515093


## References

1. SIMBAD
2. Gaia Data Release 2
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. A search for stars of very low metal abundance. VI. Detailed abundances of 313 metal-poor stars
6. Evidence for a Milky way tidal stream reaching beyond 100 kpc