# National Geographic Society – Palomar Observatory Sky Survey

> astronomical survey, that took almost 2,000 photographic plates of the night sky

**Wikidata**: [Q1425489](https://www.wikidata.org/wiki/Q1425489)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/National_Geographic_Society_–_Palomar_Observatory_Sky_Survey)  
**Source**: https://4ort.xyz/entity/national-geographic-society-palomar-observatory-sky-survey


## References

1. Freebase Data Dumps. 2013