# Q84006421

> planetary nebula

**Wikidata**: [Q84006421](https://www.wikidata.org/wiki/Q84006421)  
**Source**: https://4ort.xyz/entity/q84006421


## References

1. SIMBAD
2. The Central Stars of Planetary Nebulae of Low Surface Brightness
3. Fourth USNO CCD Astrograph Catalog
4. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
5. Third U.S. Naval Observatory CCD Astrograph Catalog (UCAC3)
6. The DENIS database, 3rd Release
7. Gaia Data Release 2