# Q87198797

> Seyfert 1 galaxy in the constellation Corona Borealis

**Wikidata**: [Q87198797](https://www.wikidata.org/wiki/Q87198797)  
**Source**: https://4ort.xyz/entity/q87198797


## References

1. SIMBAD
2. Demographics of Sloan Digital Sky Survey galaxies along the Hubble sequence
3. The eleventh and twelfth data releases of the Sloan Digital Sky Survey: final data from SDSS-III
4. The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey
5. A catalogue of quasars and active nuclei: 13th edition
6. The SDSS Photometric Catalog, Release 8
7. The Two Micron All Sky Survey (2MASS)
8. Gaia Data Release 2