# Pi Cephei

> multiple star system in the constellation Cepheus

**Wikidata**: [Q5097868](https://www.wikidata.org/wiki/Q5097868)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pi_Cephei)  
**Source**: https://4ort.xyz/entity/pi-cephei


## References

1. SIMBAD
2. A catalogue of multiplicity among bright stellar systems
3. SB9: The ninth catalogue of spectroscopic binary orbits
4. MK classification for visual binary components
5. Space-velocity vectors for 3483 stars with proper motion and radial velocity
6. The Uppsala spectral classification
7. The spectra and rotational velocities of the bright stars of Draper types A3-G0
8. Axial Rotation and Line Broadening in Stars of Spectral Types F0-K5
9. Magnitudes and colors for 833 Northern and Southern stars
10. An atlas of stellar spectra with an outline of spectral classification
11. Mg and TiO spectral features at the near-IR: spectrophotometric index definitions and empirical calibrations
12. Washington Double Star Catalog
13. Freebase Data Dumps. 2013
14. Photoelectric photometric catalogue of homogeneous measurements in the UBV system
15. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
16. Validation of the new Hipparcos reduction
17. APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South
18. Determining ages of APOGEE giants with known distances
19. Catalogue of rotational velocities of the stars