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By measuring the light intensity from a distant light bulb, you can calculate its distance if you know the bulb's
According to the Stephen-Boltzmann Law, if the sun were twice as hot as it is,
it would be 16 times more luminous
The plane of the orbits of the planets is a remnant of
the spin of the gas and dust cloud that spawned them
If we know the ___ of an object, we can calculate its distance from its apparent brightness.
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