# NGC 6939

> open cluster in Cepheus

**Wikidata**: [Q1148664](https://www.wikidata.org/wiki/Q1148664)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/NGC_6939)  
**Source**: https://4ort.xyz/entity/ngc-6939


## References

1. SIMBAD
2. A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates
3. On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters
4. The orbits of open clusters in the Galaxy
5. On the metallicity of open clusters
6. New neutron-capture measurements in 23 open clusters. I the r-process
7. Integrated parameters of star clusters: a comparison of theory and observations
8. Blue Stragglers in Galactic Open Clusters and Integrated Spectral Energy Distributions
9. Proper motions of the optically visible open clusters based on the UCAC4 catalog