# NGC 669

> galaxy

**Wikidata**: [Q1038127](https://www.wikidata.org/wiki/Q1038127)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/NGC_669)  
**Source**: https://4ort.xyz/entity/ngc-669


## References

1. SIMBAD
2. The complete census of optically selected AGNs in the Coma supercluster: the dependence of AGN activity on the local environment
3. The Updated Zwicky Catalog (UZC)
4. The Two Micron All Sky Survey (2MASS)
5. Hunting for supermassive black holes in nearby galaxies with the Hobby-Eberly telescope
6. Groups of Galaxies in the Two Micron All Sky Redshift Survey