M27 Dumbbell Nebula : 1350 Light-years from Earth - apparent size : 8' × 5'.6 - Pentax Q10 + SkyGlow Filter + SkyWatcher 1000mm f/5 Newton prime focus = 50 exposures of 30 seconds @ ISO 1600 ! For that reach : Celestron C14 or Pentax Q ? ( Shot at sea level in a well lit city : lots of light-pollution & turbulence ! )