# Q89259329
**Wikidata**: [Q89259329](https://www.wikidata.org/wiki/Q89259329)  
**Source**: https://4ort.xyz/entity/q89259329


## References

1. SIMBAD
2. Supergiants with large IR excesses
3. Gaia Data Release 2
4. Variability in proto-planetary nebulae. I. Light curve studies of 12 carbon-rich objects
5. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
6. The chemical composition of the post-AGB star, protoplanetary nebula candidate IRAS 22272+5435 = SAO 34504