# Gliese 638

> star in the constellation Hercules

**Wikidata**: [Q1146677](https://www.wikidata.org/wiki/Q1146677)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Gliese_638)  
**Source**: https://4ort.xyz/entity/gliese-638


## References

1. SIMBAD
2. VizieR
3. Source
4. Freebase Data Dumps. 2013
5. Fourth USNO CCD Astrograph Catalog
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants
9. Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants