# TU Geminorum

> variable star

**Wikidata**: [Q6137618](https://www.wikidata.org/wiki/Q6137618)  
**Source**: https://4ort.xyz/entity/tu-geminorum


## References

1. SIMBAD
2. VizieR
3. A comparison of photospheric and circumstellar HCN / CO -ratios for bright carbon stars
4. Classification and Identification of IRAS Sources with Low-Resolution Spectra
5. Washington Double Star Catalog
6. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+, 2007-2017)
7. Catalogue of Stellar Photometry in Johnson's 11-color system
8. Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue
9. The radial velocities of the stars of spectral classes R and N
10. Radial velocities of 283 stars of spectral classes R and N
11. General Catalogue of Stellar Radial Velocities
12. Chemical composition of metal-poor carbon stars in the halo
13. The Tycho Reference Catalogue
14. The Tycho-2 catalogue of the 2.5 million brightest stars