How do the stellar motions in flatter elliptical galaxies ($ ext{E}4$ to $ ext{E}7$) sometimes differ from the most spherical $ ext{E}0$ galaxies?
Answer
They can show a degree of rotation, although usually slower than in spirals.
While E0 galaxies often display purely random orbits, flatter galaxies like E4 through E7 can sometimes exhibit rotational motion, though it is slower and less dominant than the ordered rotation found in spiral galaxies.
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