# EF Aquarii

> Algol variable in the constellation Aquarius

**Wikidata**: [Q84538359](https://www.wikidata.org/wiki/Q84538359)  
**Source**: https://4ort.xyz/entity/ef-aquarii


## References

1. SIMBAD
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. General Catalogue of Variable Stars, 3rd ed.
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. ASAS photometry of ROSAT sources. I. Periodic variable stars coincident with bright sources from the ROSAT All Sky Survey
7. Gaia Early Data Release 3
8. Gaia Data Release 2