# NGC 993

> elliptical galaxy in the constellation Cetus

**Wikidata**: [Q1256234](https://www.wikidata.org/wiki/Q1256234)  
**Source**: https://4ort.xyz/entity/ngc-993


## References

1. [Source](http://haroldcorwin.net/rc3/rc39b.csv.gz)
2. SIMBAD
3. A redshift survey of nearby galaxy groups: the shape of the mass density profile
4. The Updated Zwicky Catalog (UZC)
5. The Two Micron All Sky Survey (2MASS)
6. Galaxy groups: a 2MASS catalog
7. Groups of Galaxies in the Two Micron All Sky Redshift Survey