# V640 Cassiopeiae

> star in the constellation Cassiopeia

**Wikidata**: [Q10884220](https://www.wikidata.org/wiki/Q10884220)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/HD_123)  
**Source**: https://4ort.xyz/entity/v640-cassiopeiae


## References

1. [The Updated Multiple Star Catalog](http://www.ctio.noao.edu/~atokovin/stars/stars.php?cat=HR&number=5)
2. SIMBAD
3. [Identification of a constellation from a position](http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-ref=VIZ5d6170cf22d92&-out.add=.&-source=VI/42/out&-c=359.9502%20%2b57.7408,eq=B1875,rs=2)
4. Source
5. Washington Double Star Catalog
6. Fourth USNO CCD Astrograph Catalog
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Validation of the new Hipparcos reduction
9. SB9: The ninth catalogue of spectroscopic binary orbits
10. Nearby stars of the Galactic disc and halo – IV
11. Spectroscopic study on the atmospheric parameters of nearby F-K dwarfs and subgiants
12. Fundamental Parameters and Elemental Abundances of 160 F–G–K Stars Based on OAO Spectrum Database
13. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)