# NGC 840

> galaxy

**Wikidata**: [Q938541](https://www.wikidata.org/wiki/Q938541)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/NGC_840)  
**Source**: https://4ort.xyz/entity/ngc-840


## References

1. SIMBAD
2. Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003
3. Gaia Data Release 2
4. The Two Micron All Sky Survey (2MASS)
5. Cosmicflows-3