# Messier 13

> Inneragual globular cluster

**Wikidata**: [Q11312](https://www.wikidata.org/wiki/Q11312)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Messier_13)  
**Source**: https://4ort.xyz/entity/messier-13


## References

1. SIMBAD
2. VizieR
3. A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates
4. Freebase Data Dumps. 2013
5. A catalog of parameters for globular clusters in the Milky Way
6. The Two Micron All Sky Survey (2MASS)
7. G2C2 – I. Homogeneous photometry for Galactic globular clusters in SDSS passbands
8. [Messier 13](http://messier.seds.org/m/m013.html)
9. Insights into pre-enrichment of star clusters and self-enrichment of dwarf galaxies from their intrinsic metallicity dispersions
10. Uniting old stellar systems: from globular clusters to giant ellipticals
11. [Hercules Globular Cluster (M13, NGC 6205)](https://www.daviddarling.info/encyclopedia/H/Hercules_Globular_Cluster.html)
12. [Astronomy Picture of the Day](https://apod.nasa.gov/apod/ap200319.html)
13. Global survey of star clusters in the Milky Way