# NGC 820

> galaxy

**Wikidata**: [Q1039456](https://www.wikidata.org/wiki/Q1039456)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/NGC_820)  
**Source**: https://4ort.xyz/entity/ngc-820


## References

1. SIMBAD
2. Nuclear activity in isolated galaxies
3. The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey
4. The SDSS Photometric Catalog, Release 8
5. Characterizing supernova progenitors via the metallicities of their host galaxies, from poor dwarfs to rich spirals
6. Gaia Data Release 2
7. The Two Micron All Sky Survey (2MASS)
8. A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies
9. Cosmicflows-3
10. Cosmicflows-2: the data