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NGC 6888 - Crescent Nebula
This peculiar object is results from two sets of stellar wind thrown off by a central star. These shells of material were ejected at different times and have travelled outward at different rates. They are seen here to be colliding and interacting. The nebula is about 15 light years across and lies at a distance of 5,000 light years.
This image was captured under high desert skies near Santa Fe, New Mexico, USA with a telescope of 12" aperture at f/4.5 and an electrically-cooled CCD camera. This bi-colored image was taken through hydrogen-alpha (red) and oxygen-III (blue green) narrow-band filters.
NGC 6888 - Crescent Nebula
This peculiar object is results from two sets of stellar wind thrown off by a central star. These shells of material were ejected at different times and have travelled outward at different rates. They are seen here to be colliding and interacting. The nebula is about 15 light years across and lies at a distance of 5,000 light years.
This image was captured under high desert skies near Santa Fe, New Mexico, USA with a telescope of 12" aperture at f/4.5 and an electrically-cooled CCD camera. This bi-colored image was taken through hydrogen-alpha (red) and oxygen-III (blue green) narrow-band filters.