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99-95% illuminated at 3am on east coast of USA in NYS. Waning Gibbous phase. Just after Full Moon, when the face of the Moon is 100% illuminated, the intermediate phase called Waning Gibbous Moon starts. Waning means that it is getting smaller. Gibbous refers to the shape, which is less than the full circle of a Full Moon, but larger than the semicircle shape of the Third Quarter Moon.