# X Lacertae

> variable star in constellation Lacerta

**Wikidata**: [Q56303799](https://www.wikidata.org/wiki/Q56303799)  
**Source**: https://4ort.xyz/entity/x-lacertae


## References

1. General Catalogue of Variable Stars
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. SIMBAD
4. Observational studies of cepheid amplitudes. I. Period-amplitude relationships for galactic cepheids and interrelation of amplitudes
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Barium abundances in Cepheids