# Messier 4

> Globular cluster in the constellation Scorpius. Closest globular cluster.

**Wikidata**: [Q11212](https://www.wikidata.org/wiki/Q11212)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Messier_4)  
**Source**: https://4ort.xyz/entity/messier-4


## References

1. SIMBAD
2. A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates
3. Freebase Data Dumps. 2013
4. Uniting old stellar systems: from globular clusters to giant ellipticals
5. G2C2 – I. Homogeneous photometry for Galactic globular clusters in SDSS passbands
6. A catalog of parameters for globular clusters in the Milky Way
7. A catalogue of masses, structural parameters, and velocity dispersion profiles of 112 Milky Way globular clusters
8. "Galaxy," defined
9. Testing three derivative methods of stellar population synthesis models
10. Insights into pre-enrichment of star clusters and self-enrichment of dwarf galaxies from their intrinsic metallicity dispersions
11. The ACS survey of galactic globular clusters. X. New determinations of centers for 65 clusters
12. Mean proper motions, space orbits, and velocity dispersion profiles of Galactic globular clusters derived from Gaia DR2 data