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Astroimages.org displays images obtained by me, Jeff MacQuarrie, using various telescopes and imaging equipment.  Most of the images were obtained in Virginia, while older images were from Maine and Maryland.

Recent images have been obtained with a William Optics FLT110 4.2" f/7 refractor and a Starlight Xpress SXV-H9 CCD Camera.

Older images were obtained with a Cookbook CB245 CCD camera and a Meade 16-inch, f/4.5 Newtonian Reflector telescope.

The Cookbook Camera is a CCD camera which I built following the directions supplied in "The CCD Camera Cookbook" by Richard Berry, Veikko Kanto and John Munger.  More information about this camera can be found at Richard Berry's Cookbook Camera Page.

Color images on these pages were produced using one of two methods.  Most of the color images were obtained using a method called LRGB, which combines a white (no-filter) luminance image with a series of exposures through red, green, and blue filters to provide chrominance. Some of the older color images used a method called WCMY which combines images through cyan, magenta, and yellow filters following a method created by Al Kelly, Richard Berry, Chuck Shaw, and Ed Grafton.  

Click on any thumbnail image to see a full-size version along with information about the object, and details about how the image was obtained and processed.  In many cases links are provided to additional sources of information.   Recently obtained images are identified with .  

The images on these pages are best viewed by adjusting the brightness control on your monitor to properly show all grayscales.  The grayscale image below shows 17 steps of grayscale from black (0) to white (255).  You should be able to clearly see a difference between each step while the leftmost color should be deep black.  If not, adjust your monitor's brightness accordingly.  In this way, the images on these pages will be seen as they are meant to be displayed.

 

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