By Comparing Globular Clusters, You Find That Cluster A's RR

question 61

Essay

By comparing globular clusters, you find that Cluster A's RR Lyrae stars are 225 times fainter than Cluster B's RR Lyrae stars.You know that both clusters have approximately the same chemical composition and age, and thus their RR Lyrae stars should have the same luminosities.Which cluster has the larger distance, and what is the ratio of the clusters' distances?

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Definitions:

Gallons

Gallons are a unit of volume used primarily in the United States to measure liquids and gases, equivalent to 3.785 liters.

Infiltration Capacity

The maximum rate at which soil can absorb water, affected by factors such as soil composition, moisture content, and vegetation cover.

Vegetative Cover

Plants and trees that cover the ground, reducing soil erosion and influencing the local climate.

Rainfall Intensity

The rate at which rain falls over a given area, measured in millimeters per hour or inches per hour.