Bubble Nebula. Hubble Space Telescope (HST) image of the Bubble Nebula (NGC 7635), an emission nebula that is 7 light years across. It has been blown

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Bubble Nebula. Hubble Space Telescope (HST) image of the Bubble Nebula (NGC 7635), an emission nebula that is 7 light years across. It has been blown into a bubble shape by a stellar wind from a massive young and hot central star. The colours highlight emission from different elements: doubly ionized oxygen (O III, blue), hydrogen-alpha emission (H-alpha, green), and nitrogen emission (N II, red). The Bubble Nebula is 7100 light years from Earth in the constellation of Cassiopeia. This image was obtained using Hubble's Wide Field Camera 3 (WFC3) and its UVIS (ultraviolet and visible light) channels. The image was obtained on 25-26 February 2016.

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Size: 5261px × 4996px
Photo credit: © NASA/ESA/HUBBLE HERITAGE TEAM (STSCI/AURA)/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, -alpha, 3, 11, 25, 26, 162, 2016, 7635, astronomical, astronomy, astrophysical, astrophysics, bubble, caldwell, camera, cassiopeia, emission, february, field, hst, hubble, hydrogen-alpha, ii, iii, ionised, nebula, ngc, nitrogen, optical, oxygen, sharpless, space, spectra, spectral, stellar, telescope, ultraviolet, ultraviolet-visible, universe, uvis, visible, wfc3, wide, wind