# Q80420975
**Wikidata**: [Q80420975](https://www.wikidata.org/wiki/Q80420975)  
**Source**: https://4ort.xyz/entity/q80420975


## References

1. SIMBAD
2. Visual Multiples. IX. MK Spectral Types
3. Washington Double Star Catalog
4. Gaia Data Release 2
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Fourth USNO CCD Astrograph Catalog
7. Validation of the new Hipparcos reduction
8. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)