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The Retina Nebula, designated IC 4406, is a planetary nebula in the southern constellation Lupus. Although it appears roughly rectangular in images, observations indicate that it is a bipolar structure viewed from the side, with a dense equatorial band of dust and gas. Radiation from the hot remnant...
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IC 4406, commonly called the Retina Nebula, is a planetary nebula in the southern constellation Lupus. Its bipolar structure is viewed nearly edge-on from Earth, giving the bright central region an unusually rectangular appearance. Dark, parallel lanes and clumps of dust cross the glowing gas, produ...
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