# Q91921771
**Wikidata**: [Q91921771](https://www.wikidata.org/wiki/Q91921771)  
**Source**: https://4ort.xyz/entity/q91921771


## References

1. SIMBAD
2. G.P. Kuiper's spectral classifications of proper-motion stars
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. The USNO-B Catalog
5. Gaia Data Release 2
6. Gaia Data Release 2. The catalogue of radial velocity standard stars
7. Calibrating the metallicity of M dwarfs in wide physical binaries with F-, G-, and K-primaries - I: High-resolution spectroscopy with HERMES: stellar parameters, abundances, and kinematics