M94 Group
The M94 Group is a relatively nearby, sparse group of galaxies centered on the bright spiral galaxy Messier 94 (M94, also known as NGC 4736). It is one of several galaxy groups lying within the Local Supercluster, which also contains the Local Group (which includes our own Milky Way).
The M94 Group is not a particularly dense or tightly bound group compared to others, and its membership is somewhat uncertain. Generally accepted members include Messier 94 itself, as well as several smaller and fainter galaxies gravitationally associated with it. Common members listed in astronomical databases and literature include:
- Messier 94 (NGC 4736)
- NGC 4214
- NGC 4244
- NGC 4288
- NGC 4395
- NGC 4449
- DDO 125 (UGC 7605)
- DDO 133 (UGC 7698)
However, other galaxies are sometimes included or excluded depending on the criteria used for determining group membership, such as radial velocity, distance, and proximity on the sky. The group's irregular shape and loose structure make precise definition challenging.
The distance to the M94 Group is estimated to be around 13 million light-years. Studying galaxy groups like the M94 Group is important for understanding the hierarchical structure formation of the universe, as they represent an intermediate stage between individual galaxies and larger structures like galaxy clusters. The group provides valuable insights into galaxy evolution, as the interactions and environment within the group can influence the star formation rates and morphologies of its member galaxies.