Pencil sketch with the colors inverted using a 10-inch Newtonian reflector @ 183x.  

The following image was made by Dr. James Dire of Hawaii, using an Orion 190 mm Maksutov-Newtonian with an exposure of 60 minutes (6 x 10) 

Please click on the following link for the entire Las Vegas Astronomical Society, Observers Challenge Report:     MARCH 2015 OBSERVERS CHALLENGE – NGC-2683-1