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Published byJayson Underwood Modified over 8 years ago
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Hunting all the Messier Objects Astrophotography with a $40 Web Cam James Maughan RVAS February 21, 2005
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8” Dobsonian from Coulter Optics My Odyssey 8
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Progress towards 110 Messier Objects
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Long Exposure Photographs- Camera Only - 16 sec maximum exposure - f/1.8 - 40mm equivalent - manual focus
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Iridium Flare (16 sec exposure)
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Northern Lights
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Modifications for Telescope - modified mount from 4” Newtonian - eyepiece projection - 4 to 8 sec exposure
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Comet Ikeya-Zhang
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Epsilon Lyra Double Stars
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Mercury Transit
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Jupiter Moons
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Saturn Occulation
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Saturn Reappearance
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Orion Nebula
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Asteroid 2002NY40 Flyby, 18 Aug 02 - 8 second exposures, - separated by 30 sec
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Meade 10” LX-50, and Logictech Quickcam 3000 - unmodified, 1/30 sec exposure, direct projection - K3CCD and Registax software
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Jupiter Processing For Noise Reduction
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Moon- Straight Wall
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Mars
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Saturn
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Jupiter
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Modifications for Longer Exposures - modify circuitry to bypass 1/5 sec exposure limit - K3CCD computer control
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Requires Accurate Polar Alignment - K3CCD to calculate RA and dec drift - Excel program to calculate angular misalignment, correction needed - adjust set screws as needed
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Periodic Error in LX50 Drive - Limits practical exposure length to appx 30 sec
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Crab Nebula
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Pluto
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Sombrero Galaxy
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Whirlpool Galaxy
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Ring Nebula
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James Maughan www.maughan1.com Thank You!
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