# Q66491733
**Wikidata**: [Q66491733](https://www.wikidata.org/wiki/Q66491733)  
**Source**: https://4ort.xyz/entity/q66491733


## References

1. SIMBAD
2. Spectral and luminosity classifications and measurements of the strength of CN absorption for late-type stars from objective-prism spectra
3. The Tycho-2 catalogue of the 2.5 million brightest stars
4. Gaia Data Release 2
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Determining ages of APOGEE giants with known distances