# 王良增十二

> spectroscopic binary star system in the constellation Cassiopeia

**Wikidata**: [Q7218862](https://www.wikidata.org/wiki/Q7218862)  
**Source**: https://4ort.xyz/entity/q7218862


## References

1. SIMBAD
2. [Identification of a constellation from a position](http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-ref=VIZ5d74403c10515&-out.add=.&-source=VI/42/out&-c=004.5893%20%2b52.3539,eq=B1875,rs=2)
3. Classification spectrale d'etoiles Ap et Am
4. The radial velocities spectral types and projected rotational velocities of 633 bright northern A stars
5. Catalog of Galactic OB Stars
6. The Tycho-2 catalogue of the 2.5 million brightest stars
7. Gaia Data Release 2
8. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
9. A stellar rotation census of B stars: from ZAMS to TAMS
10. Rotational velocities of A-type stars. IV. Evolution of rotational velocities