# Apollo 9

> third crewed flight of the United States Apollo program

**Wikidata**: [Q203651](https://www.wikidata.org/wiki/Q203651)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Apollo_9)  
**Source**: https://4ort.xyz/entity/apollo-9


## References

1. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
2. Jonathan's Space Report
3. Freebase Data Dumps. 2013
4. [Source](https://history.nasa.gov/SP-4029/Apollo_18-10_Designations.htm)
5. [Source](https://history.nasa.gov/SP-4029/Apollo_18-17_Call_Signs.htm)