# Q89495336
**Wikidata**: [Q89495336](https://www.wikidata.org/wiki/Q89495336)  
**Source**: https://4ort.xyz/entity/q89495336


## References

1. SIMBAD
2. A study of several F and G supergiant-like stars with infrared excesses as candidates for proto-planetary nebulae
3. The Tycho-2 catalogue of the 2.5 million brightest stars
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. Gaia Data Release 2
7. Optical spectroscopy of a post-AGB star HD 187885