# HD 109930

> binary star in the constellation Virgo

**Wikidata**: [Q5890541](https://www.wikidata.org/wiki/Q5890541)  
**Source**: https://4ort.xyz/entity/q5890541


## References

1. Washington Double Star Catalog
2. VizieR
3. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
4. G.P. Kuiper's spectral classifications of proper-motion stars
5. SIMBAD
6. Gaia Data Release 2
7. The Tycho-2 catalogue of the 2.5 million brightest stars
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. Validation of the new Hipparcos reduction
10. Chromospheric activities and kinematics for solar type dwarfs and subgiants: analysis of the activity distribution and the AVR
11. Metallicities and activities of southern stars