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Observing Log for Mike Durkin
          
4/27/2015 about 10:00PM-11:00PM 
Locust Valley, NY 
Transparency: 8/10, Seeing 3/5 
Temperature: about 45-55 degrees 
Equipment: 10x50 binoculars 
 
Quick look at some variable stars.  UU Aur, SS Vir, and ST Uma.  The quarter moon was a bit bright and interfered a bit. 
 
 
 
4/25/2015 about 8:00PM-10:00PM  
Theodore Roosevelt Nature Center, Jones Beach, NY 
Transparency: 5/10, Seeing 3/5 
Temperature: about 40-50 degrees 
Equipment: 127mm Mak and 15x70 binoculars 
 
AOS public observing session at Jones Beach.  There was a layer of thin clouds throughout the whole 
evening. 
Started by showing Venus, which was about 60% illuminated. 
Also showed the crowd the moon, which was near 50% illuminated.  Supposedly during the evening
the Lunar X was going to be visible. 
I also showed one couple Jupiter and it's 4 moons.  
During the evening I also used by cellphone to take images of the moon and Jupiter through the
17mm eyeiece. 
Also interesting during the night there was a partial halo around the moon due to the thin cloud 
layer 
 
 
 
4/11/2015 about 8:00PM-3:00AM  
Locust Valley, NY 
Transparency: 9/10, Seeing 3/5 
Temperature: about 35-50 degrees 
Equipment: Canon Tebel T3i 
 
Decided to get back to taking a pretty picture of astrophotography, and finally tried a target
I've been interested in for a long time, M51. 
After looking at the images, I was disappointed that the focus shifted during the imaging run.
I ended up excluding about half of the light frames due to the bad focus.  Something must have
been a bit too loose wich allowed the camera to move. 
 
 
 
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Camera: Canon Rebel T3i 
Telescope: Celestron Ultima 8 with PEC 
Focal length: 2000mm @f/10 
Exposure: 19x4 minutes (76 minutes) 
Location: Locust Valley, NY 
Calibrated with dark and flat frames using MaximDL 
Processed with Photoshop 
  
The focus is a little bit off. There is also a faint streak from a satellite. 
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