# HD 181240

> star

**Wikidata**: [Q6870324](https://www.wikidata.org/wiki/Q6870324)  
**Source**: https://4ort.xyz/entity/q6870324


## References

1. SIMBAD
2. Washington Double Star Catalog
3. VizieR
4. The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
9. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i