M83, Before/After, X-Ray and Optical
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Science History Images / Alamy Stock PhotoImage ID:
HRJC21File size:
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3600 x 3600 px | 30.5 x 30.5 cm | 12 x 12 inches | 300dpiPhotographer:
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This image could have imperfections as it’s either historical or reportage.
In Chandra observations that spanned several years, the ULX in M83 increased in X-ray brightness by at least 3, 000 times. This sudden brightening is one of the largest changes in X-rays ever seen for this type of object, which do not usually show dormant periods. Messier 83 (also known as the Southern Pinwheel Galaxy, M83 or NGC 5236) is a barred spiral galaxy approximately 15 million light-years away in the constellation Hydra. It is one of the closest and brightest barred spiral galaxies in the sky, making it visible with binoculars. Six supernovae (SN 1923A, SN 1945B, SN 1950B, SN 1957D, SN 1968L and SN 1983N) have been observed in M83. Release date April 30, 2012.