How Would Astronomers Measure the Velocity of the Star Shown

question 17

Multiple Choice

How would astronomers measure the velocity of the star shown in the figure below?

• A) through its spectrum
• B) through a transit
• C) through its angular velocity across the sky
• D) through its brightening or dimming with time

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Definitions:

Total Income

The sum of all earnings obtained from labor, capital investments, and any other source before any taxes or deductions are applied.

Income Distribution

The way in which a nation’s total GDP is distributed amongst its population, affecting the economic well-being of its citizens.

Official Poverty Line

A threshold set by the government defining the minimum level of income sufficient to cover basic living expenses, used to identify individuals or households in poverty.

Federal Government

The national government of a federal state, which holds the authority over matters that affect the entire country, distinct from state or local governments.