The star HR 4621 has an apparent magnitude of 2.6 and an absolute magnitude of -0.3. This star is at a distance

Question

Quizplus · Accepted Answer

The difference between apparent magnitude and absolute magnitude is directly related to the distance of the star. The larger the difference, the farther away the star is. In this case, the difference between the apparent magnitude (2.6) and absolute magnitude (-0.3) is 2.9, which indicates that the star is relatively distant. Using the inverse square law of light, we can calculate that the star is approximately 134 light-years away, which is farther than 10 parsecs (32.6 light-years). Therefore, the best choice is B, farther than 10 pc.

The Star HR 4621 Has an Apparent Magnitude of 2