# YY Columbae

> long period variable

**Wikidata**: [Q79173279](https://www.wikidata.org/wiki/Q79173279)  
**Source**: https://4ort.xyz/entity/yy-columbae


## References

1. SIMBAD
2. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+, 2007-2017)
3. The first INTEGRAL-OMC catalogue of optically variable sources
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. Gaia Early Data Release 3
7. Gaia Data Release 3
8. Gaia Data Release 2