Gregg's Astronomy Page
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Welcome to

Gregg's Astronomy Page

Albert L. Ruppel Observatory

Updated:  Sunday, March 07, 2010

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Image of the Week (3/7/2010) 

Click for full resolution

Horsehead and Flame Nebulae in Orion.  The king of the Winter constellations, Orion the Hunter, teems with nebulosity.  Most of this nebulosity glows by emission, and many of the areas include dark gas silhouettes.  Two of the most picturesque lie adjacent to the bright star Alnitak in Orion's BeltB33 is the famous 'Horse Head' and NCG 2024 is the 'Flame' (resembling a burning bush).  For more information and views of these two see the APOD from 7/21/09 and  the APOD of 1/21/10.
This image was made on February 25-26, 2010 and consisted 6 total hours of imaging.  Hα data was acquired with an STL11000 camera with an ASA 10N at f/3.7 on an AP900 mount. The data frames were acquired and stacked in MaximDL.  Final processing was done in  Photoshop.   Click thumbnail below for a color view of the same area.
 

 

 

 

This page illustrates what can be photographed using  amateur telescopes and a CCD camera.  I currently use an SBIG STL11000M camera and have previously used a SBIG and Starlight Xpress cameras, as well as a Cookbook 245 camera that I built myself. Most of the images were actually taken from my backyard near a busy street with several street lights. Not only is the CCD camera a great imaging tool, but it allows "real time" observation of objects not normally visible in areas with moderate-severe light pollution.

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                                    All text and images © Gregg L. Ruppel 1998-2010.