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Next Stargazing April 22nd
Next Stargazing April 22nd


  • Video Cameras

    Video Cameras

    There are two types of video cameras for astrophotography. The first is planetary cameras, used for imaging solar system objects at high frame rates. The other are deep-sky video cameras, which integrate longer exposures to give a "real time" view...

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  • Understanding Image Scale and Field of View

    Understanding Image Scale and Field of View

    When it comes to telescopes for visual observation, bigger is better: a larger aperture will gather more light and the observer will see more at the eyepiece. For CCD imaging, on the other hand, aperture is less important. What really...

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  • Assembling the Telescope

    Since there are different requirements for imaging than for visual observation, the setup of your telescope will likely be slightly different for CCD imaging than you may be used to for visual observing. Everything must be more precise when it...

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  • Balancing for Imaging

    Balancing for Imaging

    Properly balancing your telescope is one of the most important steps in setting up to take CCD images. Improper balance is also one of the biggest sources of problems for imagers. Taking some extra time to understand the concepts behind...

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  • Polar Aligning your Mount for Imaging

    Polar Aligning your Mount for Imaging

    Accurate polar alignment is critical for CCD imaging. Field rotation, a trailing of stars near the edges of an image, can result from improper polar alignment. Even short exposures such as planetary images can benefit from good polar alignment as...

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  • Attaching the CCD Camera and Accessories

    Attaching the CCD Camera and Accessories

    While this seems like a straightforward procedure, there are some tricks to assembling all the imaging accessories which will help you avoid problems during an imaging session. Mounting the CCD Camera There are quite a few different ways to attach...

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  • Setting Up the Computer

    While setting up your computer for CCD imaging is pretty straightforward, there are a couple tips and tricks which can prevent problems you might run into. Laptop Settings It is important to turn off certain power-saving features before beginning CCD...

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  • Choosing the Right Camera

    Choosing the Right Camera

    There are many options to consider when choosing a CCD camera, but usually there are a couple majors factors which can make the decision easier. Admittedly cost is one of the most important factors, but there can be a variety...

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  • Imaging Accessories

    Imaging Accessories

    Below are the most common accessories used by beginning CCD imagers to make life under the stars a little easier. Dew Shields and Heaters Moisture forming on the front lens of a Schmidt-Cassegrain telescope can easily ruin a CCD imaging...

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