# Markarian 273

> Seyfert 2 galaxy in the constellation Ursa Major

**Wikidata**: [Q3359462](https://www.wikidata.org/wiki/Q3359462)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Markarian_273)  
**Source**: https://4ort.xyz/entity/markarian-273


## References

1. SIMBAD
2. The K‐Band Galaxy Luminosity Function
3. The SDSS Photometric Catalog, Release 7
4. The seventh data release of the Sloan Digital Sky Survey
5. A catalogue of quasars and active nuclei: 13th edition
6. The Two Micron All Sky Survey (2MASS)
7. Hunting for supermassive black holes in nearby galaxies with the Hobby-Eberly telescope
8. The Star Formation Reference Survey. I. Survey description and basic data