| 
		
   
   
		  
		  
		  
		  
		  
		  
		  
		  
		   | 
		
		
			
				|   | 
				
				Object | 
				
				Star Trails, looking north over Tom Clark’s observatory dome | 
			 
			
				|   | 
				
				Telescope (Photo) | 
				
				18-55mm zoom lens at 18mm (f/4.5) | 
			 
			
				|   | 
				
				Telescope (Guiding) | 
				
				N/A | 
			 
			
				|   | 
				
				Camera (Photo) | 
				
				Canon 20Da DSLR | 
			 
			
				|   | 
				
				Camera (Guiding) | 
				
				N/A | 
			 
			
				|   | 
				
				Exposure Detail | 
				
				“Maximum” combination of 36 images at 120 seconds each, ISO400; 
				RAW file conversion, full calibration (bias, flat, dark), and 
				initial image processing using ImagesPlus 2.75; final image 
				processing using Photoshop CS2 | 
			 
			
				|   | 
				
				Location | 
				
				 
				Chiefland Astronomy Village, Florida 
				(N29.409, W82.860)  | 
			 
			
				|   | 
				
				Date | 
				
				03/03/06 | 
			 
		 
		  
		
		 
		 
		 
		 
		 
		  |