What observation can cause an intrinsically elongated elliptical galaxy to be classified incorrectly as an E0?

Answer

Being oriented perfectly face-on relative to our line of sight

The E0-E7 scale measures apparent flattening; if a truly elongated galaxy is oriented so that its longest axis points directly toward the observer, it will appear spherical (E0).

What observation can cause an intrinsically elongated elliptical galaxy to be classified incorrectly as an E0?

#Videos

A Simple Guide to Classifying Elliptical Galaxies - YouTube

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