# 4 Aquarii

> star in the constellation Aquarius

**Wikidata**: [Q2398910](https://www.wikidata.org/wiki/Q2398910)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/4_Aquarii)  
**Source**: https://4ort.xyz/entity/4-aquarii


## References

1. SIMBAD
2. MK classification of 142 visual binaries
3. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
4. Washington Double Star Catalog
5. Freebase Data Dumps. 2013
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Validation of the new Hipparcos reduction
8. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
9. Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants