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The Trifid Nebula
was named over 200 years ago by John Herschel to describe its
tri-lobed appearance. A bright young triple star at the center
of the Trifid excites and illuminates the surrounding hydrogen
clouds. The three components of the triple star are too close
too each other to distinguish in this image. Above the
emission nebula a fainter blue reflection nebula is seen. The
star forming Trifid Nebula is 5,200
light years away.
IMAGE DETAILS:
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Date & Location: August 28 &
30th, 2011
- Bernville, PA
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Weather: 60F with light winds on
both nights
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Sky Conditions: Clear with above
average transparency on 28th, average 30th.
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Optics: TeleVue NP101is Refractor
w/1.5x extender = 810mm @ f8.1
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Filter: Astronomic EOS
clip-in CLS-CCD (Light
Pollution Suppression)
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Mount: AP900GTO
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Guiding: Tracked, PEC active
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Camera: Canon T1i (500D) Hap
Griffin Modified - Baader UV/IR
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Exposure: 28th = 41min iso 800 /
30th = 30 min iso 1600 (71 min total)
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Calibration Frames: 16 Darks & 9
Bias frames
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Processing: Images Plus 3.82b,
Photoshop CS4, NIK, Noise Ninja
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Comments: Located on my
southern horizon, which is somewhat light polluted, I was able
to gain enough detail from the nebula with the aid of a light
pollution suppression filter and the combining multiple light
frames.
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