What Is the Reference That Astronomers Use to Denote the Luminosity

question 101

Multiple Choice

What is the reference that astronomers use to denote the luminosity of stars?

• A)the luminosity of the Sun
• B)the luminosity of the Northern Star
• C)the luminosity of Proxima Centauri,our solar system's closest neighbor star
• D)the luminosity of the cluster of stars at the center of the Milky Way galaxy

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Definitions:

Lateral Excursion

The side-to-side movement of the mandible (lower jaw), which plays a key role in the process of chewing food.

Anatomical Position

A standardized stance in anatomy where the body is erect, facing forward, with arms at the sides and palms facing forward.

Opposition

Resistance or dissent, expressed in action or argument.

Rotator Cuff

A group of muscles and tendons that surround the shoulder joint, keeping the head of your upper arm bone firmly within the shallow socket of the shoulder.