# ** I 440A
**Wikidata**: [Q66609542](https://www.wikidata.org/wiki/Q66609542)  
**Source**: https://4ort.xyz/entity/-i-440a


## References

1. SIMBAD
2. Washington Double Star Catalog
3. The Tycho double star catalogue
4. The Tycho-2 catalogue of the 2.5 million brightest stars