# U Lyrae

> variable star in the constellation Lyra

**Wikidata**: [Q56084092](https://www.wikidata.org/wiki/Q56084092)  
**Source**: https://4ort.xyz/entity/u-lyrae


## References

1. SIMBAD
2. General Catalogue of Variable Stars
3. The C-classification of the spectra of carbon stars
4. General Catalogue of Variable Stars, 3rd ed.
5. Long-period High-amplitude Red Variables in the KELT Survey
6. The Tycho-2 catalogue of the 2.5 million brightest stars
7. Catalogue of Stellar Photometry in Johnson's 11-color system
8. The All Sky Automated Survey. The Catalog of Variable Stars in the Kepler field of view
9. Gaia Early Data Release 3
10. Radial velocities of 283 stars of spectral classes R and N
11. General Catalogue of Stellar Radial Velocities
12. Gaia Data Release 2