Gemini
In astronomy, Gemini is a constellation in the northern sky and one of the constellations in the zodiac, which is the area of the sky that includes the apparent paths of the sun, moon and planets. It was one of the 48 constellations described by the 2nd century AD astronomer Ptolemy. Gemini is prominent in the winter skies of the northern Hemisphere and is visible the entire night in December–January.
