# HD 221776

> double star in the constellation of Andromeda

**Wikidata**: [Q1748074](https://www.wikidata.org/wiki/Q1748074)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/HD_221776)  
**Source**: https://4ort.xyz/entity/hd-221776


## References

1. SIMBAD
2. VizieR
3. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
4. Freebase Data Dumps. 2013
5. The Tycho-2 catalogue of the 2.5 million brightest stars
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)