Look east at sunset on Jan. 30 to spot the near-full moon shining close to the gas giant Jupiter among the stars of the constellation Gemini. The 97%-lit moon will appear full to the casual observer, just two days out from its full moon phase on Feb. 1 . See the moon shine near Jupiter on Jan. 30. The moon and Jupiter will soar high overhead through the winter sky as the night wears on, before finally setting on the western horizon in the hour preceding dawn on Jan. 31. Want to see Jupiter and the moon up close?