<Ul> <Li> Incident radiation from its star </Li> <Li> Emitted radiation of the planet, e.g., Earth's infrared glow </Li> <Li> The albedo effect causing a fraction of light to be reflected by the planet </Li> <Li> The greenhouse effect for planets with an atmosphere </Li> <Li> Energy generated internally by a planet itself due to radioactive decay, tidal heating, and adiabatic contraction due by cooling . </Li> </Ul> <Li> Incident radiation from its star </Li> <Li> Emitted radiation of the planet, e.g., Earth's infrared glow </Li> <Li> The albedo effect causing a fraction of light to be reflected by the planet </Li>

The total light output of an object is known as its