Astral Imaging at Dogwood Ridge Observatory

Latitude: 37°48'51.0" N"
Longitude:78°23'41.0"W
Scottsville, Virginia 24590
 

(click on thumbnails to go to that image's page)

 

 
 

 
   

Strange Artifact

So now 3 years later and some of the same issues on various images without any idea why. These additional images posted here are thumbnails that when mouse clicked on will open 1600px images .

 

OK so the artifact is in the lower right corner here, 2 in the lower left, 1 in the upper left and middle top.

Looks like 3 in the lower left corner, 1 in the upper left as well as upper right.

Same as above except not stretched as much.

Faint arc going from middle right to top right.

Double arc in lower right.

There's Helmet at a PA of 154.

Same image center as above but a PA of 323. Apparently this artifact follows the rotation.

 

 

 

 

 

 

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Equipment and Location Information

Date  
Location Dogwood Ridge Observatory
Optics Optical Guidance Systems 12.5" RC @f/9
Mount Astro Physics AP1200GTO
Camera SBIG STL-11002M/CW8
Filters Baader LRGB Ha 7nm,SII 8nm, OIII 8.5nm - 50.8mm Unmounted Filters
Conditions Temperature low to mid 50s - 60s with moderate to good  seeing. Transparency good.

   
    
  Last Modified :10/02/12 01:10 PM