Question

While viewing the Orion Nebula, located 1500 light years away, what unit of measure should be used to describe its immense size according to the teacher? Options: Light years, Miles, Kilometers, or Astronomical Units.

Answer 1

The unit of measure that should be used to describe the immense size of the Orion Nebula is light years.

Step-by-step explanation:

The unit of measure that should be used to describe the immense size of the Orion Nebula, located 1500 light years away, is light years.

A light year is the distance that light travels in one year. It is a very large unit of distance, with one light year being approximately 9.5 trillion kilometers.

In the case of the Orion Nebula, being 1500 light years away means that the light we see from the nebula has taken 1500 years to reach us.