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How a round star forms a square nebula is still a mystery. The round star at the center of the Red Square Nebula, MWC 922, is likely a member of a multiple star system. This impressive image was created by combining infrared images from the Hale Telescope on Mount Palomar in California and the Keck-2 Telescope on Mauna Kea in Hawaii.
One theory for the formation of the square nebula suggests that the star or stars at the center spew out cones of gas in their late stages. These cones are located at almost right angles and their edges are visible. Radial lines extending from the cone walls in the image also support this hypothesis. From a different perspective, the researchers think that these cones appear as large rings, as in supernova 1987A, and that one of the stars in MWC 922 may experience a similar supernova explosion in the future.
September 26, 2021 Astronomy Photo of the Day (NASA APOD)
Image Source and Copyright: Peter Tuthill (Sydney U.) & James Lloyd (Cornell U.)
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very interesting!
ay bu gerçek mi
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