# IC 1645
**Wikidata**: [Q3693786](https://www.wikidata.org/wiki/Q3693786)  
**Source**: https://4ort.xyz/entity/q3693786


## References

1. SIMBAD
2. A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies
3. The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey
4. The Updated Zwicky Catalog (UZC)
5. The Two Micron All Sky Survey (2MASS)
6. Cosmicflows-3
7. Galaxy groups: a 2MASS catalog
8. Cosmicflows-2: the data