# Q81940164

> carbon star in the constellation Hydra

**Wikidata**: [Q81940164](https://www.wikidata.org/wiki/Q81940164)  
**Source**: https://4ort.xyz/entity/q81940164


## References

1. SIMBAD
2. Innocent bystanders: carbon stars from the Sloan Digital Sky Survey
3. The Sixth Data Release of the Sloan Digital Sky Survey
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. The SDSS Photometric Catalog, Release 9
6. Gaia Data Release 2
7. Constraining the age-activity relation for cool stars: the Sloan Digital Sky Survey Data Release 5 low-mass star spectroscopic sample