The Semimajor Axis of Pluto's Orbit Is Almost 40 AU

question 183

Multiple Choice

The semimajor axis of Pluto's orbit is almost 40 AU.The smallest parallax angle we can measure from orbiting observatories is about 0.001 arcsec.Suppose we use this technique to measure parallax from Pluto's orbit (over the course of half a Pluto "year") .What is the maximum distance we could measure?

• A) 40 pc
• B) 1000 pc
• C) 40,000 pc
• D) 80,000 pc

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Definitions:

Thyroid

A gland in the neck that produces hormones regulating growth and metabolism.

Adrenal

Pertaining to the adrenal glands, small glandular organs located above the kidneys that produce hormones like adrenaline and corticosteroids.

Parathyroid

Small glands located behind the thyroid that play a crucial role in regulating the body's calcium levels.

Stressor

Any stimulus that produces stress.