# Guericke: Mare Cognitum

> Ranger lunar chart

**Wikidata**: [Q106906701](https://www.wikidata.org/wiki/Q106906701)  
**Source**: https://4ort.xyz/entity/guericke-mare-cognitum


## References

1. [Source](https://www.lpi.usra.edu/resources/mapcatalog/Ranger/)