# Gliese 815

> binary star in the constellation Cygnus

**Wikidata**: [Q25428022](https://www.wikidata.org/wiki/Q25428022)  
**Source**: https://4ort.xyz/entity/q25428022


## References

1. Washington Double Star Catalog
2. M dwarf luminosity, radius, and {alpha}-enrichment from I-band spectral features
3. SIMBAD
4. Fourth USNO CCD Astrograph Catalog
5. Meeting the Cool Neighbors. VIII. A Preliminary 20 Parsec Census from the NLTT Catalogue
6. Gaia Data Release 2
7. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
8. A near-infrared spectroscopic survey of 886 nearby M dwarfs
9. Observation and modelling of main-sequence star chromospheres - XIV. Rotation of dM1 stars