Messier 81, M81, NGC 3031, Bode's Galaxy, Spiral Galaxy
Messier 81 located in the northern constellation of Ursa Major is easily visible through binoculars or a small telescope. M81 is located at a distance of 12 million light-years. The three-panel mosaic is a series of images obtained with the multiband imaging photometer for Spitzer. Thermal infrared emission at 24 microns (top), 70 microns (center) and 160 microns (bottom) is shown in the images. Note that the effective spatial resolution degrades as ones moves to longer wavelengths. At these wavelengths, Spitzer sees the dust, rather than the stars, within the disc of silicates and carbonaceous grains. It is well-mixed with gas, which is best seen at radio wavelengths, to form the essential ingredients for future star formation. Spitzer Space Telescope Mission. Image taken with the Multiband Imaging Photometer (MIPS).
Size: 2340px × 4536px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No
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