# cosmic distance ladder

> succession of methods by which astronomers determine the distances to celestial objects

**Wikidata**: [Q618164](https://www.wikidata.org/wiki/Q618164)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Cosmic_distance_ladder)  
**Source**: https://4ort.xyz/entity/cosmic-distance-ladder


## References

1. Integrated Authority File
2. Freebase Data Dumps. 2013
3. National Library of Israel Names and Subjects Authority File
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)