# NGC 3931

> elliptical galaxy in the constellation Ursa Major

**Wikidata**: [Q741696](https://www.wikidata.org/wiki/Q741696)  
**Source**: https://4ort.xyz/entity/ngc-3931


## References

1. SIMBAD
2. VizieR
3. A catalog of visually classified galaxies in the local (z ~ 0.01) universe
4. The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey
5. Gaia Data Release 2
6. The Two Micron All Sky Survey (2MASS)
7. Galaxy groups: a 2MASS catalog
8. Groups of Galaxies in the Two Micron All Sky Redshift Survey