Betelgeuse and nebulae. Betelgeuse (centre) is a red supergiant star in the constellation Orion. Three red emission nebulae are seen around the star; Barnard's Loop nebula (top), Lambda Orionis nebula (left) and the Rosette nebula (bottom right corner). An emission nebula is a huge cloud of gas and dust that glows as the hydrogen it contains is ionised by radiation from the hot young stars that have formed within it. A bell-shaped dark ring is seen surrounding Betelgeuse. Captured from Cumeada Observatory, Reguengos de Monsaraz, Portugal. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / MIGUEL CLARO |
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