# HD 203857 b

> unconfirmed exoplanet in the constellation Cygnus

**Wikidata**: [Q113503057](https://www.wikidata.org/wiki/Q113503057)  
**Source**: https://4ort.xyz/entity/hd-203857-b


## References

1. Extrasolar Planets Encyclopaedia
2. Radial velocity search for extrasolar planets in visual binary systems