The greatest variation in size, mass, and luminosity occurs in:
A)globular clusters.
B)elliptical galaxies.
C)spiral and barred spiral galaxies.
D)type I vs. type II irregulars.
E)Seyfert galaxies.

Question

Quizplus · Accepted Answer

Elliptical galaxies have the greatest variation in size, mass, and luminosity. This is because they can range from small, faint dwarf galaxies to massive, bright giants. In contrast, spiral and barred spiral galaxies have a more consistent size and luminosity, and irregular galaxies tend to be small and low in mass. Seyfert galaxies, while they can have significant variability in luminosity due to their active galactic nuclei, do not have the same range in size and mass as elliptical galaxies. Globular clusters, while they contain many stars, are not entire galaxies and thus are not as varied in size and mass. Elliptical galaxies have a wide range of sizes, masses, and luminosities. They can range from small dwarf galaxies to supergiant galaxies, and their masses can range from a few hundred thousand solar masses to trillions of solar masses. Similarly, their luminosities can range from faint to extremely bright. Therefore, elliptical galaxies exhibit the greatest variation in these parameters among the given options.

The Greatest Variation in Size, Mass, and Luminosity Occurs In