# Q66636268

> astrophysical X-ray source in the constellation Sagittarius

**Wikidata**: [Q66636268](https://www.wikidata.org/wiki/Q66636268)  
**Source**: https://4ort.xyz/entity/q66636268


## References

1. SIMBAD
2. Washington Double Star Catalog
3. Source
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Validation of the new Hipparcos reduction
7. The Geneva-Copenhagen survey of the Solar neighbourhood. II. New uvby calibrations and rediscussion of stellar ages, the G dwarf problem, age-metallicity diagram, and heating mechanisms of the disk
8. The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ∼14 000 F and G dwarfs
9. ROSAT All-Sky Survey Faint Source Catalogue
10. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s)
11. Proper motion and densification of the International Celestial Reference Frame in the direction of the Galactic bulge