# Q76911040

> astrophysical X-ray source in the constellation Ophiuchus

**Wikidata**: [Q76911040](https://www.wikidata.org/wiki/Q76911040)  
**Source**: https://4ort.xyz/entity/q76911040


## References

1. SIMBAD
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. A spectroscopic survey of the youngest field stars in the solar neighbourhood. I. The optically bright sample
6. ROSAT All-Sky Survey Faint Source Catalogue
7. The Tycho Reference Catalogue