Gregg's Astronomy & Astrophotography Page
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Welcome to

Gregg's Astronomy & Astrophotography Page

Albert L. Ruppel Observatory

Updated:  Saturday, March 08, 2014

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New Images (3/8/2014)

Sh2-284 Emission nebula in Monoceros.  The constellation Monoceros (the Unicorn) is home to numerour clouds of ionized hydrogen gas. Sh2-284 is one of the larger accumulations of ionized gas in the Sharpless catalog of HII regions.  The cloud is associated with star cluster Dolidze 25 which are the brighter stars near the center in this image.  Sh2-284 appears to be part of a group of star forming regions that includes Sh2-283 to Sh2-286, all lying in the outer arm of the Milky Way (Norma arm).  This grouping has been described as the "Monoceros Arc".  For additonal information about Sh2-284 see the Galaxy Map page.  Some additonal views can be found at Dean Salman's excellent web site and on the NOAO site.
My image was made from
February 27 to March 4 ,2014.  Hα and RGB data was collected through an AstroDon filters, with an ASA10N astrograph and STL11000 CCD on an AP900 GTO, and  stacked in MaximDL.   Final processing  was done in  Photoshop.  Click the thumbnails below for images of the  Hα data and an inverted view of the central region.




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.

Visitor   ida_logo.gif (9871 bytes) International Dark Sky Association 


                                    All text and images Gregg L. Ruppel 1998-2014.