# Q66609803

> astrophysical X-ray source in the constellation Scorpius

**Wikidata**: [Q66609803](https://www.wikidata.org/wiki/Q66609803)  
**Source**: https://4ort.xyz/entity/q66609803


## References

1. SIMBAD
2. Source
3. The Tycho-2 catalogue of the 2.5 million brightest stars
4. Gaia Data Release 2
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
7. ROSAT All-Sky Survey Faint Source Catalogue