# Bellatrix

> variable star in the constellation Orion

**Wikidata**: [Q13066](https://www.wikidata.org/wiki/Q13066)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Bellatrix)  
**Source**: https://4ort.xyz/entity/bellatrix


## References

1. New Catalogue of Suspected Variable Stars
2. Washington Double Star Catalog
3. [Source](https://thenauticalalmanac.com/TNARegular/1981_Nautical_Almanac.pdf)
4. SIMBAD
5. [Source](http://viaf.org/viaf/6800163464732705680000/#Bellatrix_(hviezda))
6. Spectroscopic analysis of southern B and Be stars
7. Application of convolutional neural networks for stellar spectral classification
8. Freebase Data Dumps. 2013
9. Catalogue of Stellar Photometry in Johnson's 11-color system
10. Validation of the new Hipparcos reduction
11. Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity
12. Carbon, nitrogen, and oxygen abundances in early B-type stars
13. The interstellar Ca II distance scale
14. [Source](https://www.treccani.it/enciclopedia/bellatrix/)
15. The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars
16. Variability of OB stars from TESS southern Sectors 1-13 and high-resolution IACOB and OWN spectroscopy
17. Fundamental parameters of B supergiants from the BCD system. I. Calibration of the (λ_1, D) parameters into Teff
18. [Source](https://encyklopedia.pwn.pl/haslo/Bellatrix;3875769.html)