Question

Question 15 (1 point)

What is the meaning of the term luminosity?

Question 15 options:

a)

How bright a star appears when we look at it through a telescope

b)

The amount of energy emitted per square meter by a star

c)

The apparent magnitude of a star

d)

The total amount of energy emitted by a star each second

Answer 1

Answer:

d) The total amount of energy emitted by a star each second.

Explanation:

Luminosity refers to the amount of energy that an object emits in a specific time. In the case of stars, it depends on its temperature and radio. Luminosity can be measured in units like Watts.