The absolute magnitude of a star is the amount of light received by earth.
a. true
b. false.

Measure of the amount of light a star actually gives offthats the definitionhop this is helpful

the area between the graph and the t axis

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.