🔍 Key Concepts

• orbit vs. spin of a celestial body (like Earth around the Sun vs. Earth turning on its axis) • Basic astronomy terms: rotation, revolution, orbit • The meaning of nutation and space motion in celestial navigation context

💭 Think About

• Ask yourself: which term describes going all the way around another object on a path, instead of spinning in place? • Which term is commonly paired with 'on its axis' versus 'around the Sun' in basic astronomy? • Which options (if any) refer to smaller wobbles or complex motion rather than the main path around another body?

✅ Before You Answer

• Match the term that means motion around another body along an orbital path • Eliminate the term that means spinning about your own axis • Recognize that nutation is a small oscillation or wobble, not the main orbital path