# Psi1 Orionis

> star in the constellation Orion

**Wikidata**: [Q1749313](https://www.wikidata.org/wiki/Q1749313)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/25_Orionis)  
**Source**: https://4ort.xyz/entity/psi1-orionis


## References

1. SIMBAD
2. Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5
3. The kinematics of the Gould belt: an expanding group ?
4. Freebase Data Dumps. 2013
5. General Catalogue of Variable Stars
6. Catalogue of Stellar Photometry in Johnson's 11-color system
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. Gaia Early Data Release 3
9. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations
10. Sixth catalogue of fundamental stars (FK6). Part III. Additional stars with direct solutions
11. Elemental abundances of low-mass stars in the young clusters 25 Orionis andλ Orionis
12. Stellar parameters and H α line profile variability of Be stars in the BeSOS survey
13. Gaia Data Release 2
14. High and intermediate-resolution spectroscopy of Be stars. An atlas of Hγ, He I 4471 and Mg II 4481 lines