The Northern Clump (MCXC J0621.7-5242) is a galaxy cluster residing at the filament north of the Abell 3391 cluster. More about the Abell 3391/95 galaxy cluster system.
Figure: Left: adaptively-smoothed SRG/eROSITA image of the A3391/95 system showing the X-ray emission of hot gas in the energy band 0.5 − 2.0 keV. Right: adaptively-smoothed XMM-Newton image of the Northern Clump in the energy band 0.5 − 2.0 keV. The inset shows the composite image combining XMM-Newton observation in blue showing the X-ray gas, ASKAP/EMU radio survey in pink showing the jets from the central supermassive blackhole, and DECam optical survey in green showing foreground stars and galaxies.