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Hemisphere:  Northern  ·  Contains:  Leo Triplet  ·  M 65  ·  M 66  ·  M65  ·  M66  ·  NGC 3623  ·  NGC 3627  ·  NGC 3628  ·  NGC3628
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Leo Trio (M65, M66, NGC 3628), 


            Gary Lopez
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Leo Trio (M65, M66, NGC 3628)

Imaging telescopes or lenses: Orion 6" Ritchey-Chretien  ·  TS Optics 8" f/5 ONTC Newton

Imaging cameras: Canon 70D  ·  ZWO ASI1600MM Cooled PRO

Mounts: Orion Atlas EQ-G  ·  Orion Sirius EQ-G

Guiding telescopes or lenses: Orion 50mm Guide Scope with helical focusing

Guiding cameras: ZWO ASI120MM-S  ·  Lacerta M-Gen II Autoguider

Focal reducers: Sky-Watcher Quattro Coma Corrector

Software: Adobe Lightroom CC  ·  Backyard EOS 3.1.13  ·  Photoshop CC  ·  PHD2 PHD 2.6.2  ·  Main Sequence Software Sequence Generator Pro, v3.0  ·  Pleaides PixInsight Core 1.8

Filters: Astrodon L Gen 2 E-series 31mm  ·  Orion 2" Skyglow Filter

Dates:April 2, 2017April 3, 2017April 9, 2019

Orion 2" Skyglow Filter: 101x180" ISO1600
Astrodon L Gen 2 E-series 31mm: 153x60" (gain: 0.00) -15C bin 1x1

Integration: 7.6 hours

Darks: ~30

Bias: ~50

Avg. Moon age: 5.69 days

Avg. Moon phase: 33.09%

Bortle Dark-Sky Scale: 4.00 job: 2641998

RA center: 11h 19' 43"

DEC center: +13° 17' 27"

Pixel scale: 0.781 arcsec/pixel

Orientation: -85.188 degrees

Field radius: 0.581 degrees

Resolution: 4276x3233

Locations: Monterey Pines Observatory, Monterey, California, United States

Data source: Backyard


This is another experiment combining DSLR RGB data with HDR luminance from a cooled CMOS camera. In this case the RGB was collected two years ago using a Canon 70D (unmodified) mounted on a 6"RC, and the luminance data was collected with an ZWO ASI1600MM Pro mounted on a 8" Newtonian. Once again, I really like the look. The colors provided by the DSLR are subtle (although there is a lack of reds and a bit of a blue-green shift, characteristic of the unmodified Canon70D), while the luminance layer brings the image into remarkable clarity.



Gary Lopez
License: None (All rights reserved)

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Leo Trio (M65, M66, NGC 3628), 


            Gary Lopez