Residuals of the planets Saturn, Mars, and Jupiter are visible in this image as bright red spots off the plane of the Galaxy at the 1:00, 2:00 and 7:00 positions, respectively. However, some slower moving, bright objects did leave behind residuals. For the image atlas, moving objects such as asteroids and comets were removed. There are some artifacts worth noting in the image. As we look toward the center of the galaxy, we are looking through more of the disk than when we are looking at large angles away from the center, and you can see a noticeable increase in stars (colored blue-green) toward the center of the image. So we see the Milky Way as a band running through the sky. The Milky Way is shaped like a disk and our solar system is located in that disk about two-thirds of the way out from the center. In the mosaic, the Milky Way Galaxy runs horizontally across this map. The projection used in this image of the sky, called Aitoff, takes the 3-D sky sphere and slices open one hemisphere, and then flattens the whole thing out into an oval shape.
Many different methods can be used to project a spherical surface into a 2-D map. To make a map of the sky, astronomers project it into two dimensions. The sky can be thought of as a sphere that surrounds us in three dimensions. This is a mosaic of the images covering the entire sky as observed by the Wide-field Infrared Survey Explorer (WISE), part of its All-Sky Data Release.
MAP OF THE UNIVERSE PHOTO DOWNLOAD DOWNLOAD
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