Jim Burnell's CCD Images - M3 Clicking on an image will display a high-resolution view.  

Object: M3 (NGC5272)	Globular Cluster	Const.: Canes Venatici
Camera: STL11000M	Scope: Vixen VC200L	Mount: Losmandy Titan
Filter(s): L:R:G:B	Exposure: 8x8m:4x8m:4x8m:4x8m	Binned 2x2
M3 - Globular Cluster in Canes Venatici. This image uses a stack of 8 eight-minute exposures for the luminance channel and stacks of 4 eight-minute exposures taken through red, green and blue filters for the colors. The images were acquired using an STL11000M CCD camera on a Vixen VC200L 8" f/9 Cassegrain reflector. The raw images were calibrated, defect-corrected and stacked. They were then deconvolved with 32 iterations of Richardson-Lucy deconvolution. Finally the color channels were combined and auto-balanced. All processing was performed using AIP4Win V2 This image has been resampled down from its original size of 1980x1320.

 

Object: M3 (NGC5272)	Globular Cluster	Const.: Canes Venatici
Camera: HSXV-H9	Scope: NP101	Mount: Losmandy Titan
Filter(s): IR block	Exposure: 20x2m	blank
M3 - Globular Cluster in Canes Venatici. A stack of 20 two minute exposures using a 4" f/5.4 refractor. Image processing performed using AIP4WIN. This image has been resampled down from its original size of 1392x1040.

 

Object: M3 (NGC5272)	Globular Cluster	Const.: Canes Venatici
Camera: HX916	Scope: AP130	Mount: AP1200GTO
Filter(s): IR block	Exposure: 5x60s	blank
M3 - Globular Cluster in Canes Venatici. A stack of 5 one minute exposures using a 5" f/6 refractor. Image processing performed using AIP4WIN. This image has been resampled down from its original size of 1300x1030.