2 Glob Cluster Merge?
The smaller sphere could be just a 'white' artifact (though slightly blue). I have not seen any possible mergers till now. Most adjacent colored spots were clearly artifacts. The negative space between the two possible globs seem to indicate that they might be merging. When does one go with merger or with just 'other'?
In a precursory search, I did find a paper at caltech that discussed this type of merge.
by ElisabethB moderator
Hi GrizzeeBear and welcome to the Zoo
The two objects here are definitely galaxies, but I see no signs of interaction. i only go for merger if I see disturbances in the galaxies.
happy hunting !