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Mitchell Duke
Attended United States Air Force Academy
Lives in Clayton NC
3,423 followers|319,313 views
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Mitchell Duke

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Saturn 30 May 2015 at only 25 degrees altitude. Seeing was good but not at this height.
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Mitchell Duke

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C11 the Bubble Nebula shot on Thursday. I am still trying to figure out what is causing the noise in my images. I lowered the exposure time thinking that it had something to do with it, but no luck. 
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Not a problem! Glad to help out. I was supposed to be on a hangout, but it got canceled. So you just happen to catch me with nothing better to do :)
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Mitchell Duke

Deep sky imaging  - 
 
 
IC 5070 aka the Pelican, shot Thursday morning. This was shot with no cooling, so the sensor had a temp of 88 degrees. Cooling is now fixed so noise should not be an issue.
•25 subs
•25 darks
•25 flats
•150 bias
Cannon T3i on an Orion 10" f4
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Juan I. Jimenez's profile photoFaris Al Said's profile photoMitchell Duke's profile photo
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Thanks!
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Mitchell Duke

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Finally got the scope out, and decided to give M31 a try. I had numerous problems on this night, and this is only 10 light frames as a result. The DSLR lens fogged up, the focuser started slipping etc, etc,.. This is just a quick processing with only a histo stretch applied.
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Michael A. Phillips's profile photoStephen Rahn's profile photoHafizh Ahsan's profile photoMitchell Duke's profile photo
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The histogram should be at least 1/3, but no higher to properly set the exposure time. Thanks for the comments :)
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Mitchell Duke

Deep sky imaging  - 
 
My first attempt at the Rosette nebula from last night.

-30 subs
-25 bias / darks /flats
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Nice work 
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Have him in circles
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Mitchell Duke

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C9 the Cave Nebula, also shot on Thursday. 
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Nice. Hope the weather clears for the weekend!
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Mitchell Duke

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IC 1396 from last night with only a histo stretch applied. This shot could have been better, however half of the shots were overexposed.
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I used the auto white balance in BYEOS. My cam is a Full Spectrum modification. 
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Mitchell Duke

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IC 5070 aka the Pelican, shot Thursday morning. This was shot with no cooling, so the sensor had a temp of 88 degrees. Cooling is now fixed so noise should not be an issue.
•25 subs
•25 darks
•25 flats
•150 bias
Cannon T3i on an Orion 10" f4
19
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Tim Jensen's profile photoMichael A. Phillips's profile photoЮрій Шкуратов's profile photoMitchell Duke's profile photo
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Beautiful!
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Mitchell Duke

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Horse Head / flame nebula 
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Sweet. One of my favorites!
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Mitchell Duke

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Ok I think I have figured this long exposure stuff out. This is from last week, and is my second image captured for long exposures. I was impressed with what the cannon camera could capture when I saw the dust lanes in between the running man and M42.

*Subs: 20 x10sec  / 30 x 180sec
*Bias: 25
*Darks: 30
*Flats: 25
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:-) 😃
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Have him in circles
3,423 people
wen huang's profile photo
Scott McElreath's profile photo
ammar abbas's profile photo
Cory Barnett's profile photo
Roman Magnet's profile photo
Daniel McNamara's profile photo
Kevin Franklin's profile photo
John Marsh's profile photo
isaac otudje's profile photo
Work
Employment
  • Division Manager, present
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Clayton NC
Story
Tagline
Planetary imager and devoted husband. I hate politics so never seek to use my work for your personal gain.
Introduction
Planet Imaging, Astronomy
Education
  • United States Air Force Academy
    Electronic Engineering
Basic Information
Gender
Male