The star and the planet are considered to be perfect black bodies, the planet has an albedo and only absorbs a fraction of radiation, depending on its surface characteristics.
The star and the planet are considered to be perfect black bodies, the planet has an albedo. This is depending on its surface characteristics. The star are considered to be perfect black bodies. This was depending on its surface characteristics. The planet are considered to be perfect black bodies. This was depending on its surface characteristics. The planet only absorbs a fraction of radiation. This is depending on its surface characteristics.