# BL Lacertae object

> active galactic nucleus with rapid and large-amplitude flux variability and significant optical polarization and with spectrum dominated by a featureless nonthermal emission continuum

**Wikidata**: [Q195385](https://www.wikidata.org/wiki/Q195385)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/BL_Lacertae_object)  
**Source**: https://4ort.xyz/entity/bl-lacertae-object


## References

1. [Source](https://lingualibre.org/wiki/Q787995)
2. Freebase Data Dumps. 2013
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)