# Q78537253

> astronomical radio source in the constellation Ursa Major

**Wikidata**: [Q78537253](https://www.wikidata.org/wiki/Q78537253)  
**Source**: https://4ort.xyz/entity/q78537253


## References

1. SIMBAD
2. Constraint on the time variation of the fine-structure constant with the SDSS-III/BOSS DR12 quasar sample
3. A catalogue of quasars and active nuclei: 13th edition
4. The SDSS Photometric Catalog, Release 9
5. Gaia Data Release 2
6. Radio-loud active galaxies in the northern ROSAT All-Sky Survey. I. Radio identifications
7. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission