# HDW 3

> planetary nebula

**Wikidata**: [Q87395826](https://www.wikidata.org/wiki/Q87395826)  
**Source**: https://4ort.xyz/entity/q87395826


## References

1. SIMBAD
2. A spectroscopic survey and analysis of bright, hydrogen-rich white dwarfs
3. Gaia Data Release 2
4. The binary fraction of planetary nebula central stars – I. A high-precision, I-band excess search
5. UKIDSS-DR8 LAS, GCS and DXS Surveys