# Q77838764
**Wikidata**: [Q77838764](https://www.wikidata.org/wiki/Q77838764)  
**Source**: https://4ort.xyz/entity/q77838764


## References

1. SIMBAD
2. The maximum age of Trapezium systems
3. The Tycho-2 catalogue of the 2.5 million brightest stars
4. Fourth USNO CCD Astrograph Catalog
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. Gaia Data Release 2
7. Evolved stars in open clusters
8. The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog