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ngc 0281 Pacman
ngc 0896
ngc 1499 California
ngc 2237 Rosette
ngc 2264 Cone
  ngc 6888 Crescent.jpg -  NGC6888     Crescent Nebula      Caldwell 27   Emission Nebula   distance: 5,000 ly     apparent size: 18'x12'     image size: 50'x50'  FLI PL-16803 camera     12.5" Planewave scope @ 2500mm  (f/8)     AP900 mount 17.7 hour total exposure     HLRGB 450:140:170:150:150 subs 10:10:10:10:10 binned 1:1:2:2:2     (0.73" per pixel unbinned)   MMOAG with ST402-ME camera guiding   The Crescent Nebula is an expanding shell of hydrogen gas formed when the fast stellar wind from the central star collided with and energized the slower moving wind ejected by the star when it became a red giant around 400,000 years ago. It is expected that the  star will explode as a supernova in about 100,000 years. This image includes over 25,000 stars.   
ngc 7000 - IC 5067
ngc 7635 Bubble
Cave Nebula
SH2-112
SH2-142

NGC6888     Crescent Nebula     Caldwell 27
Emission Nebula

distance: 5,000 ly     apparent size: 18'x12'     image size: 50'x50'

FLI PL-16803 camera     12.5" Planewave scope @ 2500mm (f/8)     AP900 mount
17.7 hour total exposure     HLRGB 450:140:170:150:150 subs 10:10:10:10:10 binned 1:1:2:2:2     (0.73" per pixel unbinned)
MMOAG with ST402-ME camera guiding

The Crescent Nebula is an expanding shell of hydrogen gas formed when the fast stellar wind from the central star collided with and energized the slower moving wind ejected by the star when it became a red giant around 400,000 years ago. It is expected that the star will explode as a supernova in about 100,000 years. This image includes over 25,000 stars.

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