# 12 Geminorum

> star in the constellation Gemini

**Wikidata**: [Q4009140](https://www.wikidata.org/wiki/Q4009140)  
**Source**: https://4ort.xyz/entity/12-geminorum


## References

1. SIMBAD
2. Distance of the Cepheid SU Cassiopeae
3. Seven-colour photometry of O, B and A stars
4. Standard stars for spectral classification
5. The Association i Geminorum
6. Revised Standards for Supergiants on the System of the Yerkes Spectral Atlas
7. Catalog of Galactic OB Stars
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. Gaia Early Data Release 3
10. Version 2 of the Hipparcos Input Catalogue
11. Gaia Data Release 2