is a weblog by Andy Taylor
MOONBOWS
We’ve all (probably) seen rainbows, at day. But how many of us have seen rainbows at night? Yeah, this can actually happen, due to the light produced by the moon (thus moonbow, or lunar rainbow or white rainbow). Of course the light emitted by the moon is much much fainter than that of the sun, so as a result, so is the formed rainbow; most of the time, it’s even hard for the human eye to separate the colors there.
The biggest chance you have of ever seeing a moonbow is when the moon is full (or near to full), when it’s the brightest, but there are other conditions required. The sky has to be very dark (close to black), and, of course, there must bee rain falling opposite to the moon.