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Flashes from some meteoroid impacts on the Moon can be seen with the naked eye. How much light must a future lunar base emit in order to be visible as a dot in the lunar night (like the flag of Tunisia)? I suppose it is a bit complicated and depends on the phase of the Moon, and that the new Moon is so close to the Sun.

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LocalFluff
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    This is sort of the reverse of this question: Can you see man-made lights on the dark side of the Earth from the surface of the moon with the naked eye? http://astronomy.stackexchange.com/questions/8105/can-you-see-man-made-lights-on-the-dark-side-of-the-earth-from-the-surface-of-th/8111#8111 You need 100 megawatts or so to see a non-coherent light source from lunar distance. – Wayfaring Stranger Apr 24 '15 at 14:54
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    Somewhat related, very amusing http://what-if.xkcd.com/13/ – toniedzwiedz Apr 25 '15 at 22:59

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