Question

To which category does galaxy #4 belong? Why does it belong in this category?

Answer 1

Messier 87 is a supergiant elliptical galaxy with about 1 trillion stars in the constellation Virgo.

Step-by-step explanation:

Answer 2

Galaxy #4 is a spiral galaxy because it has a spiral structure, central bulge, and disk of stars.

• Identify the features of galaxy #4. Galaxy #4 is a large, bright galaxy with a spiral structure. It has a central bulge and two spiral arms that extend outward from the bulge.
• Compare the features of galaxy #4 to the features of different galaxy types. Spiral galaxies are characterized by their spiral structure, central bulge, and disk of stars.
• Classify galaxy #4 based on its features. Galaxy #4 has all of the features of a spiral galaxy, therefore it is a spiral galaxy.
• Galaxy #4 belongs in the spiral galaxy category because it has all of the features of a spiral galaxy. Spiral galaxies are the most common type of galaxy in the universe, and they are characterized by their spiral structure. The spiral structure is formed by the rotation of the galaxy's disk of stars. The central bulge of a spiral galaxy is a region of older, redder stars. The spiral arms of a spiral galaxy are regions of younger, bluer stars and gas clouds.
• Galaxy #4 is a typical example of a spiral galaxy. It has a large, bright central bulge and two spiral arms that extend outward from the bulge. The spiral arms are bright and active, indicating that they are forming new stars.
• The image shows a galaxy with a spiral structure. The spiral structure is visible in the bright arms of the galaxy. The central bulge of the galaxy is also visible.
• Based on the image, galaxy #4 is clearly a spiral galaxy.