The galaxies occur in two clumps, while the gas has expanded into a billowing cloud encompassing all three clumps.
As of 2014, it is one of the few galaxy clusters known to show separation between the dark matter and baryonic matter components.
[2][3] The bimodal distribution of galaxies was found at discovery in 2008.
The galaxy group is a gravitational lens and strongly lenses a more distant galaxy behind it, at z=~1.2[3][4] As of 2014, the group is the smallest mass object to exhibit separation between its dark matter and baryonic matter components.
[2] The galaxy group is dominated by one elliptical galaxy, situated in one of the two concentrations, while the other node has two large bright galaxies, which do not dominate the group.