# H 2-1

> planetary nebula

**Wikidata**: [Q15906662](https://www.wikidata.org/wiki/Q15906662)  
**Source**: https://4ort.xyz/entity/q15906662


## References

1. SIMBAD
2. Gaia Data Release 2
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. A Survey of Planetary Nebulae in the Southern Galactic Bulge
5. The Magellanic Cloud Calibration of the Galactic Planetary Nebula Distance Scale