M 3,NGC 5272
© Don GoldmanRGB unbinned (no luminance) 25 min
Astrodon Gen 2 RGB filters
Apogee U16M at -25C.
Data collected automatically using CCDAutoPilot running MaximDL and PinPointPro for plate solving.
Guided with Starlight XPress Lodestar in an Astrodon MonsterMOAG.
Data calibrated and pre-processed in CCDStack.
Final processing in Photoshop CS3
Taken in mag 4.5 Sacramento skies on a portable rig that was leveled with JMI wheeley bars on thin cement near my pool. Polar alignment using a laser at the side of the PME hitting a mark on the south wall of the house.