# Björnö upper light
**Wikidata**: [Q110422650](https://www.wikidata.org/wiki/Q110422650)  
**Source**: https://4ort.xyz/entity/bj-rn-upper-light


## References

1. Swedish list of lights. 1978
2. [notice to mariners. 2024](https://ufs.sjofartsverket.se/pdf/2024/1031SV.pdf)
3. [Fyrwiki](https://fyr.org/wiki/index.php/Bj%C3%B6rn%C3%B6)
4. [NGA List of Lights, Radio Aids and Fog Signals. 2021](https://msi.nga.mil/api/publications/download?key=16694312/SFH00000/NIMA_LOL/Pub116/Pub116bk.pdf)