How does an Irr II galaxy differ from an Irr I galaxy?
Answer
An Irr II galaxy exhibits no discernible symmetry or structural pattern at all.
Classification systems for irregular galaxies differentiate them based on the level of structure retained. Irr I galaxies often display faint traces of organization, such as remnants of a disk or subtle spiral arms, even though they remain classified as irregular. In contrast, Irr II galaxies are fundamentally chaotic, showing absolutely no symmetry or recognizable structure. This complete lack of organization is frequently the result of significant gravitational distortion, tidal interactions, or violent collisions that have stripped away any original order.
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