# HD 224635 and HD 224636

> comprising binary star system of the constellation Andromeda

**Wikidata**: [Q1747921](https://www.wikidata.org/wiki/Q1747921)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/HD_224635_and_HD_224636)  
**Source**: https://4ort.xyz/entity/hd-224635-and-hd-224636


## References

1. SIMBAD
2. VizieR
3. Spectrographic Observations of Visual Double Stars.
4. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
5. Washington Double Star Catalog
6. Freebase Data Dumps. 2013
7. UBV photometry of stars whose positions are accurately known. VI
8. The Tycho double star catalogue
9. Gaia Data Release 2
10. Statistics of spectroscopic sub-systems in visual multiple stars
11. ABUNDANCES IN THE LOCAL REGION. II. F, G, AND K DWARFS AND SUBGIANTS