# Q86019899

> astrophysical X-ray source in the constellation Vulpecula

**Wikidata**: [Q86019899](https://www.wikidata.org/wiki/Q86019899)  
**Source**: https://4ort.xyz/entity/q86019899


## References

1. SIMBAD
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. Washington Double Star Catalog
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. Validation of the new Hipparcos reduction
6. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
7. ROSAT All-Sky Survey Faint Source Catalogue
8. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)