Question

question 4
what is the difference between an e6 galaxy and an e2 galaxy?
the e6 galaxy is more elliptical than the e2 galaxy.
the e6 galaxy has more tightly wound spiral arms than the e2 galaxy.
the e6 galaxy is an irregular galaxy but the e2 galaxy is not.
the e6 galaxy has a bar of material passing though the center and the e2 galaxy does not.
the e6 galaxy is less elliptical than the e2 galaxy.

Explanation:

Elliptical galaxies are classified by the Hubble sequence, where the number (E0 to E7) indicates ellipticity. A higher number means greater ellipticity (more flattened). E6 has a higher number than E2, so it is more elliptical. Spiral arms, irregular shapes, and central bars are features of other galaxy types (spiral/irregular), not ellipticals.

Answer:

The E6 galaxy is more elliptical than the E2 galaxy.