# Q89821463

> blue straggler in the constellation Cygnus

**Wikidata**: [Q89821463](https://www.wikidata.org/wiki/Q89821463)  
**Source**: https://4ort.xyz/entity/q89821463


## References

1. SIMBAD
2. WIYN open cluster study LII: wide-field CCD photometry of the old open cluster NGC 6819
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. Gaia Data Release 2
5. Spectroscopic abundances in the open cluster NGC 6819
6. WIYN open cluster study. LV. Astrometry and membership in NGC 6819