# Messier 7

> Open cluster

**Wikidata**: [Q11234](https://www.wikidata.org/wiki/Q11234)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Messier_7)  
**Source**: https://4ort.xyz/entity/messier-7


## References

1. [NASA/IPAC Extragalactic Database](http://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=3285483&objname=1)
2. SIMBAD
3. VizieR
4. [Messier 7](http://www.messier.seds.org/m/m007.html)
5. On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters
6. A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates
7. Freebase Data Dumps. 2013
8. NGC 6475. SIMBAD
9. Gaia Data Release 2. Observational Hertzsprung-Russell diagrams
10. On the metallicity of open clusters
11. Astrophysical parameters of Galactic open clusters
12. The orbits of open clusters in the Galaxy