Question

Which unit should be used to measure to the distance to the SECOND CLOSEST sun to the Earth, Proxima Centauri.A. A scientist would measure in light-years to Proxima Centauri, because it is a star proximity to the Earth, butoutside of the solar system.B. A scientist would measure in parsecs to Proxima Centauri, because the number would be large if AUS or light-years were used.C. A scientist would measure in astronomical units to Proxima Centauri, because it is inside our solar system.

Answer 1

A. A scientist would measure in light-years to Proxima Centauri because it is a star in proximity to the Earth, but outside of the solar system.

Step-by-step explanation:

Scientists use astronomical units for distance in the solar system, light years for stars that are close to us, and parsec for far distances. Since Proxima Centauri is the second closest sun to the Earth, we use light years.

Therefore, the answer is

A. A scientist would measure in light-years to Proxima Centauri because it is a star in proximity to the Earth, but outside of the solar system.