Two galaxies are shown. Galaxy U: Dust, gas, and stars in the shape of a pinwheel, relatively small in size. Galaxy NGC 1427A: Dust, gas, and stars in a nonuniform arrangement spread out over a large area. How are NGC 1427A and U different? How are they the same?

NGC 1427A has no general shape, so it is an irregular galaxy. U has a bulge in the center and arms, so it is a spiral galaxy. They are similar in that both contain plenty of dust and gas. Both also have active star-forming sites.

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poojatomarb76 poojatomarb76 · Answer 2 · 2022-05-23T10:51:46+02:00

NGC 1427A is an irregular galaxy with no discernible shape. The spiral galaxy U has a bulge in the middle and arms.

What is a galaxy?

A galaxy is a massive clump of gas, dust, and billions of stars and their solar systems bound together by gravity.

The first galaxies were discovered in the 17th century by Charles Messier, who had no idea what they were at the time.

Messier, a proficient comet viewer, noticed many more fuzzy objects in the sky that he knew were not comets.

We would discover 64 galaxies the size of the Milky Way in a cube that now holds one galaxy the size of the Milky Way.

NGC 1427A is an irregular galaxy because it lacks a general shape. U is a spiral galaxy, since it contains a bulge in the center and arms.

They are comparable in that they both have a lot of dust and gas. Both have active star-formation sites.

Hence, they are comparable in that they both have a lot of dust and gas.

To learn more about the galaxy refer to the link;

brainly.com/question/2905713

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