# Mayall's Object

> two colliding galaxies within the constellation of Ursa Major

**Wikidata**: [Q115523](https://www.wikidata.org/wiki/Q115523)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mayall's_Object)  
**Source**: https://4ort.xyz/entity/mayall-s-object


## References

1. SIMBAD
2. VizieR
3. Freebase Data Dumps. 2013
4. Neutral hydrogen observations of a large sample of galaxies
5. The Two Micron All Sky Survey (2MASS)
6. Galaxy groups: a 2MASS catalog
7. The Star Formation Reference Survey. I. Survey description and basic data