# Q77377553

> Seyfert 1 galaxy in the constellation Leo

**Wikidata**: [Q77377553](https://www.wikidata.org/wiki/Q77377553)  
**Source**: https://4ort.xyz/entity/q77377553


## References

1. SIMBAD
2. A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies
3. The Sloan Digital Sky Survey quasar catalog: tenth data release
4. The Sloan Digital Sky Survey Quasar Catalog: Twelfth data release
5. The eleventh and twelfth data releases of the Sloan Digital Sky Survey: final data from SDSS-III
6. The Updated Zwicky Catalog (UZC)
7. The Two Micron All Sky Survey (2MASS)
8. Gaia Data Release 2
9. Cosmicflows-3
10. Cosmicflows-2: the data