Astrophotography with the Nexstar SLT 102

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Star clusters only:

Images processed with GIMP and/or DSS.

All taken with an 102mm F6.5 Celestron Nexstar refractor and Canon 1000D DSLR at prime focus with a Skywatcher LP filter at ISO1600 (unless stated otherwise). Most are taken with the telescope mounted on the HEQ5 mount, but those marked 'SLT' were taken using the original alt-az mount.

Each object is shown either 4x4 binned ( ~8''/pixel) or 2x2 binned (~4''/pixel), both cropped to 600x400. Occasionally the full frame (3888x2592) is scaled to 600x400.

Click on any image icon to see the enlarged version ...


M4 and NCG6144 - 1085s, SLT
M9 - 1200s, SLT
M10 - 1140s, SLT
M10 - 1140s, SLT

M11 - 1140s, SLT
M11 - 1140s, SLT
M12 - 540s, SLT
M12 - 540s, SLT

M14 - 1170s, SLT
M14 - 1170s, SLT
M16 - 1860s, SLT
M18 - 510s, SLT

M21 - 570s, SLT
M22 - 450s, SLT
M22+NGC6642 - 450s, SLT
M25 - 630s, SLT

M26 - 1080s, SLT
M26 - 1080s, SLT
M28 - 480s, SLT
M30 - 600s, SLT

M35+NGC2158 - 1590sec, SLT, ISO800 (no LP) + ISO1600 LP
M37 - 320sec, SLT, ISO800 (no LP)
M37 - 320sec, SLT, ISO800 (no LP)
M37 - 1560sec, ISO800 (no LP)

M38+NGC1907 - 190sec, SLT, ISO800 (no LP)
M38 - 190sec, SLT, ISO800(no LP)
M41 - 2100s, SLT
M44 - 570s

M46 - 2100s, SLT
M47 - 450s, SLT
M48 - 1230s, SLT
M50 - 690s, SLT

M52 - 1620s, SLT
M52 + NGC7635 - 1620s, SLT
M54 - 570s, SLT
M55 - 540s, SLT

M69 - 540s, SLT
M70 - 540s, SLT
M75 - 540s, SLT
M93 - 1590s, SLT

M107 - 600s, SLT
M107 - 600s, SLT
NGC752 - 1260s
NGC869+884 - 1800sec, ISO800 (no LP)

NGC957 - 1800s
NGC1746 - 540s
NGC2362 - 630s, SLT
NGC2506 - 750s, SLT

NGC6633 - 390s, SLT

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