What does an E0 classification signify regarding an elliptical galaxy's shape?

Answer

It is very close to being perfectly spherical

An E0 galaxy represents the least flattened form in the E0 to E7 scale, meaning it appears nearly circular or spherical when observed.

What does an E0 classification signify regarding an elliptical galaxy's shape?

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Do Elliptical Galaxies Have A Disk Component? - Physics Frontier

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