Astrophotography with the Nexstar SLT 102

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.
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M65/66 - 3690s, SLT, ISO800/1600
2x2 bin, 1/4/2010 + 29+30/3/2012 (part Scotland)

M1 - 870s, SLT, ISO800 (no LP)
4x4 bin, 17/01/10

M4 and NCG6144 - 1085s, SLT
4x4 bin, 28+30/6/2011 (from Wales)

M8 - 540s, SLT
4x4 bin, 30/6/2011 (from Wales)

M9 - 750s, SLT
2x2 bin, 7/8/2013 (from Weymouth)

M10 - 720s, SLT
2x2 bin, 5/8/2013 (from Weymouth)

M10 - 720s, SLT
4x4 bin, 5/8/2013 (from Weymouth)

M12 - 540s, SLT
2x2 bin, 5/8/2013 (from Weymouth)

M12 - 540s, SLT
4x4 bin, 5/8/2013 (from Weymouth)

M14 - 660s, SLT
2x2 bin, 6/8/2013 (from Weymouth)

M16 - 1860s, SLT
4x4 bin, 13/9/2012+7/8/2013 (Suffolk+Weymouth)

M17 - 639s, SLT, ISO400
4x4 bin, 28/6/2011 (from Wales)

M17 - 639s, SLT, ISO400
2x2 bin, 28/6/2011 (from Wales)

M20 - 900s, SLT
2x2 bin, 30/6/2011 + 21/8/2015 (from Wales + Hemingby)

M20 - 900s, SLT
4x4 bin, 30/6/2011 + 21/8/2015 (from Wales + Hemingby)

M21 - 570s, SLT
2x2 bin, 21/8/2015 (from Hemingby)

M22 - 450s, SLT
2x2 bin, 21/8/2015 (from Hemingby)

M22+NGC6642 - 450s, SLT
5x5 bin, 21/8/2015 (from Hemingby)

M26 - 390s
4x4 bin, 7/8/2013 (from Weymouth)

M27 - 870s, SLT
4x4 bin, 8/9/2012 (from Suffolk)

M28 - 480s, SLT
2x2 bin, 21/8/2015 (from Hemingby)

M31 - ~1hr (no LP)
scaled to fit, 30/1+02/2/10

M31 - 5640s, SLT
scaled to fit, 11/13/18/9/2012 (part Suffolk)

M31 - 3210s
scaled to fit, 21/10/2015

M33 -3000s, ISO1600
2x2 bin, 21+22/10/2015

M33 -3000s, ISO1600
4x4 bin, 21+22/10/2015

M35+NGC2158 - 1590sec, SLT, ISO800 (no LP) + ISO1600 LP
4x4 bin, 18/01/10 + 10/2/2016

M37 - 320sec, SLT, ISO800 (no LP)
4x4 bin, 28/12/09

M37 - 320sec, SLT, ISO800 (no LP)
2x2 bin, 28/12/09

M37 - 1560sec, ISO800 (no LP)
full frame, 1/03/10

M38+NGC1907 - 190sec, SLT, ISO800 (no LP)
4x4 bin, 28/12/09

M38 - 190sec, SLT, ISO800(no LP)
2x2 bin, 28/12/09

M42 - 1380sec
full frame, 11/2/2016

M44 - 570s
5x5 bin, 6/4/2016

M45 - 1080sec, SLT, ISO800 (no LP)
4x4 bin, scaled slightly, 17/01/10

M45 - 2820sec, ISO800 (no LP)
4z4 bin, 17+31/01/10

M51 - 6300s, ISO800/1600
unbinned, 17/1/10 + 28/2 + 6+7/3/2016

M51 - 6300s, ISO800/1600
2x2 bin, 17/1/10 + 28/2 + 6+7/3/2016

M51 - 6300s, ISO800/1600
4x4 bin, 17/1/10 + 28/2 + 6+7/3/2016

M54 - 570s, SLT
2x2 bin, 21/8/2015 (from Hemingby)

M55 - 540s, SLT
2x2 bin, 21/8/2015 (from Hemingby)

M57 - 235sec, SLT, ISO800 (no LP)
4x4 bin, 28/12/09

M57 - 235sec, SLT, ISO800 (no LP)
2x2 bin, 28/12/09

M59/60 - 2070s, part SLT
2x2 bin, 26+29/3/2012 (from Scotland) + 31/3/2016

M59/60 - 2070s, part SLT
4x4 bin, 26+29/3/2012 (from Scotland) + 31/3/2016

M61 - 750s, SLT
4x4 bin, 30/3/2012 (from Scotland)

M65/66 - 3690s, SLT, ISO800/1600
2x2 bin, 1/4/2010 + 29+30/3/2012 (part Scotland)

M65/66 + NGC3826 - 3690s, SLT, ISO800/1600
4x4 bin, 1/4/2010 + 29+30/3/2012 (part Scotland)

M69 - 540s, SLT
2x2 bin, 21/8/2015 (from Hemingby)

M70 - 540s, SLT
2x2 bin, 21/8/2015 (from Hemingby)

M75 - 540s, SLT
2x2 bin, 21/8/2015 (from Hemingby)

M81 - 4140s ISO800(no LP)/1600
2x2 bin, 18/1+16/4/2010 + 28/2/2016

M81/2 - 2400sec, ISO800 (no LP)
4x4 bin, 18/01+16/04/10

M82 - 1200sec, SLT, ISO800 (no LP)
unbinned, 18/01/10

M84/6 and friends - 3210s, SLT, ISO800/1600
4x4 bin, 14/4/2010 + 26+30/3/2012 + 31/3/2016 (part Scotland)

M87 - 780s, SLT
4x4 bin, 27/3/2012 (from Scotland)

M88/91 - 840s
4x4 bin, 27/3/2012 (from Scotland)

M89/90 - 1860s, SLT
4x4 bin, 26+29/3/2012 (from Scotland)

M95(+supernova)/96 - 2970s, SLT
4x4 bin, 26+27+30/3/2012 (from Scotland)

M97 - 3000sec, ISO1600/800 (no LP)
unbinned, 20/02+16/04/10

M98 - 840s, SLT
4x4 bin, 29/3/2012 (from Scotland)

M99 - 2070s, part SLT
4x4 bin, 29/3/2012 (from Scotland) + 6/4/2106

M100 - 3090s, part SLT
4x4 bin, 27+30/3/2012 (Scotland) + 31/3+5+6/4/2016

M101 - 3000sec, ISO800 (no LP)
2x2 bin, 12+15/04/10

M101 - 3000sec, ISO800 (no LP)
4x4 bin, 12+15/04/10

M104 - 2520s, SLT
2x2 bin, 27+30/3/2012 (from Scotland)

M104 - 1680s, SLT
4x4 bin, 27+30/3/2012 (from Scotland)

M107 - 600s, SLT
2x2 bin, 5/8/2013 (from Weymouth)

M107 - 600s, SLT
4x4 bin, 5/8/2013 (from Weymouth)

M108 - 3000sec, ISO1600/800 (no LP)
unbinned, 20/02+16/04/2010

M97+M108 - 3000sec, ISO1600/800 (no LP)
4x4 bin, 20/02+16/04/2010

NGC147+NGC185 - 2490s
5x5 bin, 6+7/11/2015

NGC281 - 3020s
4x4 bin, 11/12/2015 + 10+11/2/2016

NGC752 - 1260s
5x5 bin, 22/1/2016

NGC869+884 - 1800sec, ISO800 (no LP)
5x5 bin, 04/03/2010

NGC891 - 1800sec (no LP)
2x2 bin, 30/1/2010

NGC891 - 1800sec (no LP)
4x4 bin, 30/1/2010

NGC957 - 1800s
4x4 bin, 22/1/2016

NGC1499 - 1320s
5x5 bin, 11/12/2015

NGC1746 - 540s
5x5 bin, 11/12/2015

NGC2024 - 900sec (no LP)
5x5 bin, 31/01/10

NGC2244 - 3420sec
full frame, 10+28/2/2016

NGC2264 - 4184s
2x2 bin, 7+31/3/2016 + 5/4/2016

NGC2264 + Cone Nebula - 4184s
4x4 bin, 7+31/3/2016 + 5/4/2016

NGC2903 - 1800sec (no LP)
2x2 bin, 20/02/2010

NGC6939/46 - 3600s
4x4 bin, 22+24/10/2015

NGC6946 - 3600s
2x2 bin, 22+24/10/2015

NGC6960 - 1020s, SLT
5x5 bin, 13/9/2012 (from Suffolk)

Stephans Quintet - 2950s
unbinned, 6+7/11/2015

NGC 7331 - 2950s
2x2 bin, 6+7/11/2015

NGC7380 - 3540s
4x4 bin, 10+11/12/2015

NGC7635 + M52 - 3600s
4x4 bin, 22+24/10/2015

IC405 - 3485s
4x4 bin, 7/11/2015 + 11/12/2015

Comet Hergenrother - 1200s, SLT
2x2 bin, 9/10/2012

Comet Lovejoy 2014 - 900s
5x5 bin, 30/1/2015

Comet Cataline C/2013 US10 - 3090s
4x4 bin, 22/1/2016

Comet Cataline C/2013 US10 - 1560s
4x4 bin, 11/2/2016

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