You have learned that in order to understand stars, astronomers want to know their luminosity. Luminosity
describes how much light incoming from the star each second. Luminosity can be measured in watts (W).
The brightness of this bulb is the same at all points one meter away from the bulb. All those points together form
a sphere with a radius of one meter, surrounding the bulb.
describes how much light incoming from the star each second. Luminosity can be measured in watts (W).
The brightness of this bulb is the same at all points one meter away from the bulb. All those points together form
a sphere with a radius of one meter, surrounding the bulb.
No comments:
Post a Comment