среда, 3 июля 2019 г.

DYK the bright clusters and nebulae of planet Earth’s…


DYK the bright clusters and nebulae of planet Earth’s night sky are often named for flowers or insects? 


Though its wingspan covers over 3 light-years, NGC 6302: The Butterfly Nebula is no exception! With an estimated surface temperature of about 250,000 degrees C, the dying central star of this particular planetary nebula has become exceptionally hot, shining brightly in ultraviolet light but hidden from direct view by a dense torus of dust. This sharp close-up was recorded by the Hubble Space Telescope in 2009. The Hubble image data is reprocessed here, showing off the remarkable details of the complex planetary nebula.


Image Credit: NASA, ESA, Hubble, HLA; Reprocessing & Copyright: Robert Eder


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