360-degree panorama of the ecliptic showing the traditional Hevelius illustrations of Zodiacal constellations superimposed on a photographic mosaic of the night sky.
Note the fainter winter Milky Way in Gemini and the brighter summer Milky Way in Sagittarius. As the planet moves around the sun our view outward walks around the circle of constellations. Signs are defined by the sun's position, but the constellations are visible in the opposite position. Therefore a winter sign like Sagittarius is visible in summer, when the sun is in the other direction.
Copy from [http://en.wikipedia.org/wiki/Image:Zodiac_pan1.jpg]loaded by User:Twtunes 360-degree panorama of the ecliptic showing the traditional Hevelius illustrations of Zodiacal constellations superimposed on a photographic mosaic of the night sky. Not