# Phi1 Orionis

> binary star system in the constellation Orion

**Wikidata**: [Q2088389](https://www.wikidata.org/wiki/Q2088389)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Phi1_Orionis)  
**Source**: https://4ort.xyz/entity/phi1-orionis


## References

1. SB9: The ninth catalogue of spectroscopic binary orbits
2. SIMBAD
3. Rotational velocities and spectral types for a sample of binary systems
4. Spectral types of bright southern stars
5. Emission lines in O stars
6. Source
7. Contribution a l'etude de la zone convective des etoiles
8. An atlas of stellar spectra with an outline of spectral classification
9. Catalogue of Stellar Photometry in Johnson's 11-color system
10. Gaia Data Release 2
11. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
12. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations
13. Present-day cosmic abundances. A comprehensive study of nearby early B-type stars and implications for stellar and Galactic evolution and interstellar dust models
14. The IACOB project. I. Rotational velocities in northern Galactic O- and early B-type stars revisited. The impact of other sources of line-broadening
15. The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars
16. Validation of the new Hipparcos reduction