Astronomers Must Often Know the Distance to a Star Before

question 14

Multiple Choice

Astronomers must often know the distance to a star before they can fully understand its characteristics. Which of the following properties of a star typically requires a knowledge of distance before it can be determined?

• A) its luminosity
• B) its radial velocity
• C) its temperature
• D) its apparent brightness
• E) all of the above

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Definitions:

Nursing Intervention

Any action taken by nursing staff to improve or maintain the health condition of patients, including medical care, support, and education.

Anxiety

A mental health condition characterized by feelings of worry, anxiety, or fear that are strong enough to interfere with one's daily activities.

Self-Esteem

An individual's subjective evaluation of their own worth or personal value.

Depressed Mood

A prolonged state of sadness or low spirits, which can affect one's thoughts, behavior, feelings, and sense of well-being.