Monday, July 31, 2017
The center of our Milky Way galaxy...
The center of the galaxy is actually the bright white region to the right of and just below the middle of the image. Along the left side are large arcs of gas, heated by clusters of bright, massive stars. Wind and radiation from these stars create the complex structures seen in the gas. The core of our galaxy is concealed by vast clouds of dust and gas. The core heats these clouds, some which harbor stellar nurseries.
The image covers about half a degree of the sky, about the same width as the full moon.
This is a composite image, taken by several different telescopes. Yellow represents near-infrared, taken by Hubble. Red represents infrared, taken by Spitzer. Blue (high-energy) and violet (low-energy) represent X-rays, taken by Chandra.