# Trifid Nebula

> HII region

**Wikidata**: [Q11377](https://www.wikidata.org/wiki/Q11377)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Trifid_Nebula)  
**Source**: https://4ort.xyz/entity/trifid-nebula


## References

1. SIMBAD
2. VizieR
3. [Messier 20](http://messier.seds.org/m/m020.html)
4. On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters
5. Freebase Data Dumps. 2013
6. [Trifid Nebula](http://www.docdb.net/show_object.php?id=ngc_6514)
7. A RAVE investigation on Galactic open clusters
8. Astrophysical parameters of Galactic open clusters
9. The orbits of open clusters in the Galaxy
10. Proper motions of the optically visible open clusters based on the UCAC4 catalog