# Q89719789

> Algol variable in the constellation Aquila

**Wikidata**: [Q89719789](https://www.wikidata.org/wiki/Q89719789)  
**Source**: https://4ort.xyz/entity/q89719789


## References

1. SIMBAD
2. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925)
3. The Tycho-2 catalogue of the 2.5 million brightest stars
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. Gaia Data Release 2
6. Spectroscopic and photometric observations of selected Algol-type binaries – I. V1665 Aquilae and AG Arietis