# HD 309637
**Wikidata**: [Q67859535](https://www.wikidata.org/wiki/Q67859535)  
**Source**: https://4ort.xyz/entity/hd-309637


## References

1. Washington Double Star Catalog
2. The Henry Draper Extension Charts: A catalogue of accurate positions, proper motions, magnitudes and spectral types of 86933 stars
3. SIMBAD
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. Second USNO CCD Astrograph Catalog
6. The DENIS database, 3rd Release
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)