# BL Orionis

> star in the constellation Orion

**Wikidata**: [Q15939712](https://www.wikidata.org/wiki/Q15939712)  
**Source**: https://4ort.xyz/entity/bl-orionis


## References

1. SIMBAD
2. NSCC--A new scheme of classification of c-rich stars devised from optical and infrared observations
3. Catalogue of Stellar Photometry in Johnson's 11-color system
4. Gaia Data Release 2
5. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
6. The chemical composition of carbon stars. I. Carbon, nitrogen and oxygen in 30 cool carbon stars in the galactic disk