Which of the following environments would allow astronomers to produce an HR diagram that includes all phases of stellar evolution for stars with a wide range of masses? A) an open cluster of stars that formed less than 10⁶ years ago B) a globular cluster of stars that formed 10¹⁰ years ago C) an open cluster of stars that formed 10¹⁰ years ago D) a galactic center field with a mixture of ages

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The galactic center field with a mixture of ages would allow astronomers to observe stars with a wide range of masses at different stages of their evolution. This includes massive stars, which are more likely to reside in the galactic center, as well as stars in various phases of their evolution such as main sequence, red giants, and white dwarfs. Open and globular clusters have stars that are generally of similar age and composition, which limits the range of stars that can be observed in terms of their mass and evolution.

Which of the Following Environments Would Allow Astronomers to Produce