# Carl Luplau Janssen

> Danish astronomer

**Wikidata**: [Q12305299](https://www.wikidata.org/wiki/Q12305299)  
**Source**: https://4ort.xyz/entity/carl-luplau-janssen


## References

1. Virtual International Authority File
2. Dansk Biografisk Leksikon
3. [LIBRIS. 2012](https://libris.kb.se/katalogisering/mkz142353lqdwnt)