# HD 40574

> peculiar star in the constellation Orion

**Wikidata**: [Q6866507](https://www.wikidata.org/wiki/Q6866507)  
**Source**: https://4ort.xyz/entity/q6866507


## References

1. VizieR
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. SIMBAD
4. Catalog of Galactic OB Stars
5. Gaia Data Release 2
6. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
7. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
8. Rotational Velocities of B Stars