# NGC 3994

> spiral galaxy in the constellation Ursa Major

**Wikidata**: [Q303062](https://www.wikidata.org/wiki/Q303062)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/NGC_3994)  
**Source**: https://4ort.xyz/entity/ngc-3994


## References

1. SIMBAD
2. [VizieR](http://simbad.u-strasbg.fr/simbad/sim-id?NbIdent=1&Ident=NGC%203994)
3. [NASA/IPAC Extragalactic Database](http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC%203994&extend=no)
4. CALIFA, the Calar Alto Legacy Integral Field Area survey
5. [Source](http://haroldcorwin.net/rc3/rc39b.csv.gz)
6. The eleventh and twelfth data releases of the Sloan Digital Sky Survey: final data from SDSS-III
7. The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey
8. A catalogue of quasars and active nuclei: 13th edition
9. The Two Micron All Sky Survey (2MASS)
10. NIBLES: an H I census of stellar mass selected SDSS galaxies
11. Groups of Galaxies in the Two Micron All Sky Redshift Survey