# Q84217439
**Wikidata**: [Q84217439](https://www.wikidata.org/wiki/Q84217439)  
**Source**: https://4ort.xyz/entity/q84217439


## References

1. SIMBAD
2. On the Stellar Population and Star-Forming History of the Orion Nebula Cluster
3. NGC 1980 Is Not a Foreground Population of Orion: Spectroscopic Survey of Young Stars with Low Extinction in Orion A
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. A multi-color optical survey of the Orion nebula cluster. I. The catalog
6. Gaia Data Release 2
7. The rotation period distribution of pre-main-sequence stars in and around the Orion nebula