Jim Burnell's CCD Images - M4
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M4 Globular Cluster in Scorpius
Object: M4 (NGC6121)
Globular Cluster
 Const.: Scorpius
Camera: SXV-H9 Scope: Tele Vue NP-101 Mount: Losmandy Titan
Filter(s): IR block Exposure: 6x120s blank
M4 - Globular Cluster in Scorpius. A stack of 6 two minute exposures using an SXV-H9 CCD camera through a 4" f/5.4 Tele Vue NP-101 refractor. The images were calibrated, defect-corrected, stacked, deconvolved and tangent histogram shaped using AIP4WIN V2. This image has been resampled down from its original size of 1392x1040.
 
M4 Globular Cluster in Scorpius
Object: M4 (NGC6121)
Globular Cluster
 Const.: Scorpius
Camera: HX916 Scope: AP130 Mount: AP1200 GTO
Filter(s): IR block Exposure: 9x60s blank
M4 - Globular Cluster in Scorpius. A stack of 9 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.