Credit: Ron Goldman

Lurking some 6,000 light-years away in the constellation of Perseus, a stellar fish composed of a myriad of different elements swims across the interstellar medium, eventually caught in the act by the Hubble Space Telescope.

This particular image of the nebula, formally known as IC 1795, was created using Hubble's false-color palette, which specializes in mapping narrow gas emissions from oxygen (blue), hydrogen (green) and sulfur (red) atoms. To polish the image with the remaining data collected by Hubble, broadband filters are used.

You can see a larger version of this image here.



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