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M27, the Dumbbell Nebula, was the first planetary nebula ever discovered. We see this nebula from its equator and therefore both cones can be seen (a polar view would look
more like the Ring Nebula). The Dumbbell is reasonably large and brighter than most other planetary nebulae. It
can be seen under light-polluted skies. Like most planetary nebulae, it
responds exceptionally well to LPR filters. It's also an easy target to photograph, but this exposure was
taken under extremely bad conditions (a rare thick haze from Alaskan forest fires carried down with a "cold" front).
The study of planetary nebulae is fascinating. You're looking
at a star that consumed the fuel at its core thousands of years ago. It then ejected its gaseous shell into
space. The gas continues to expand at a slow but measurable pace. The central star is easily visible
in this photo, now a dwarf star headed for demise. It is believed that 95% of all stars will die in this fashion; the others
will experience supernova explosions instead (see M1, Crab Nebula).
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Dumbbell Nebula M27 (Click
image to enlarge)
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Object Details: Type: Planetary
Nebula Constellation: Vulpecula Distance: Opinions vary Size: Opinions vary
Image Details:
Date: July 19, 2004 Site: Harahan, LA (hazy skies) Exposure:
CCD, 10 x 5 min. Filters: Orion SkyGlow LPR Processing: MSB Astroart
3.0 Telescope: 10" Meade LX200 Reducer: Meade f/4.3 CCD: Starlight Express
MX7C Autoguider: S.T.A.R. 2000
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