Imagine You Tried to Measure the Parallax of Distant Stars

question 4

Multiple Choice

Imagine you tried to measure the parallax of distant stars from the surface of Mars. How would your results compare to what you would find from Earth?

• A) Each star's parallax would be smaller because Mars has a smaller orbital speed.
• B) Each star's parallax would be smaller because Mars is farther from the Sun.
• C) Each star's parallax would be larger because Mars is closer to the stars.
• D) Each star's parallax would be larger because Mars has a larger orbit.

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Definitions:

Hypoglossal Canal

A canal in the skull that transmits the hypoglossal nerve from the brain to the muscles of the tongue.

Jugular Foramen

A large opening in the base of the skull, through which the internal jugular vein and several important nerves pass.

Sella Turcica

A saddle-shaped depression in the sphenoid bone at the base of the human skull, which houses the pituitary gland.

Carotid Canal

A passageway in the temporal bone of the skull through which the internal carotid artery enters the cranial cavity.