# Orbiting Astronomical Observatory 3

> NASA space observatory launched in 1972

**Wikidata**: [Q12129338](https://www.wikidata.org/wiki/Q12129338)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Orbiting_Astronomical_Observatory_3)  
**Source**: https://4ort.xyz/entity/orbiting-astronomical-observatory-3


## References

1. [Source](https://space.skyrocket.de/doc_sdat/oao-3.htm)
2. [Source](https://ntrs.nasa.gov/citations/19720022224)
3. Jonathan's Space Report
4. [Source](https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1972-065A)
5. [Source](https://heasarc.gsfc.nasa.gov/docs/copernicus/copernicus_about.html)