# OP Aquarii

> long period variable

**Wikidata**: [Q86927620](https://www.wikidata.org/wiki/Q86927620)  
**Source**: https://4ort.xyz/entity/op-aquarii


## References

1. SIMBAD
2. VizieR
3. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
4. Catalogue of suspected variable stars. Moscow, Acad. of Sciences USSR Shternberg,1951 (1981)
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Gaia Data Release 2