# IC 521

> galaxy

**Wikidata**: [Q3712414](https://www.wikidata.org/wiki/Q3712414)  
**Source**: https://4ort.xyz/entity/q3712414


## References

1. SIMBAD
2. VizieR
3. Demographics of Isolated Galaxies along the Hubble Sequence
4. The SDSS Photometric Catalog, Release 9
5. The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey
6. Gaia Data Release 2
7. The Two Micron All Sky Survey (2MASS)
8. NIBLES: an H I census of stellar mass selected SDSS galaxies