# Q92981630

> planetary nebula

**Wikidata**: [Q92981630](https://www.wikidata.org/wiki/Q92981630)  
**Source**: https://4ort.xyz/entity/q92981630


## References

1. SIMBAD
2. Towards an improvement in the spectral description of central stars of planetary nebulae
3. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
4. The Tycho-2 catalogue of the 2.5 million brightest stars
5. Gaia Data Release 2
6. Hot star extension to the Hubble Space Telescope stellar spectral library