# V447 Hydrae

> long-period variable star in the constellation Hydra

**Wikidata**: [Q75290435](https://www.wikidata.org/wiki/Q75290435)  
**Source**: https://4ort.xyz/entity/v447-hydrae


## References

1. SIMBAD
2. Classification of 831 Two-Micron Sky Survey
3. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+, 2007-2017)
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. Gaia Early Data Release 3
6. Gaia Data Release 2