Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  IC 4277  ·  IC 4278  ·  M 51  ·  NGC 5169  ·  NGC 5173  ·  NGC 5194  ·  NGC 5195  ·  NGC 5198  ·  Whirlpool Galaxy
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M51 - The Whirlpool Galaxy (Combined first light data from DSLR & recent data from ASI), Greg Mason
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M51 - The Whirlpool Galaxy (Combined first light data from DSLR & recent data from ASI)

Revision title: M51-The Whirlpool Galaxy (Combined 1st Light DSLR data w/recent ASI2600 data and ASI1600 HaLRGB stars)

Getting plate-solving status, please wait...
M51 - The Whirlpool Galaxy (Combined first light data from DSLR & recent data from ASI), Greg Mason
Powered byPixInsight

M51 - The Whirlpool Galaxy (Combined first light data from DSLR & recent data from ASI)

Revision title: M51-The Whirlpool Galaxy (Combined 1st Light DSLR data w/recent ASI2600 data and ASI1600 HaLRGB stars)

Equipment

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Acquisition details

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Description

I first got this telescope in early 2020.  My first target was M51.  The original revision on the Astrobin page is the result of that first imaging session.  It was taken with essentially the same gear, except for the camera. 

The original was taken with a stock Canon 77D. 

Revision C was taken 4 years later with an ASI2600MC Pro. 

Revision D is both sets of data combined.

Revision G added Ha data to the galaxies from my ASI1600 and then replaced the stars with LRGB from the same camera.

PixInsight Workflow

Weighted Batch Pre-Processing:

2X Drizzle Integration
Autocrop

Post-Processing:

GradientCorrection
SpectrophotometricColorCalibration w/BackgroundNeutralization
BlurXterminator
TGVDenoise
MultiScaleMedianTransform
ArcsinhStretch
HistogramTransformation - Black Point for contrast
LocalHistogramEqualization
MultiscalLinearTransform
CurvesTransformation - Saturation

Comments

Revisions

  • M51 - The Whirlpool Galaxy (Combined first light data from DSLR & recent data from ASI), Greg Mason
    Original
  • M51 - The Whirlpool Galaxy (Combined first light data from DSLR & recent data from ASI), Greg Mason
    C
  • M51 - The Whirlpool Galaxy (Combined first light data from DSLR & recent data from ASI), Greg Mason
    D
  • Final
    M51 - The Whirlpool Galaxy (Combined first light data from DSLR & recent data from ASI), Greg Mason
    G

C

Title: M51 -- The Whirlpool Galaxy (First Light comparison with today)

Description: Cropped new image to be similar to original, first light image.

Uploaded: ...

D

Title: M51 - Whirlpool (First Light Comparison with Today)

Description: Combined original DSLR data with ASI2600 data.

Uploaded: ...

G

Title: M51-The Whirlpool Galaxy (Combined 1st Light DSLR data w/recent ASI2600 data and ASI1600 HaLRGB stars)

Description: (Combined 1st Light DSLR data w/recent ASI2600 data and ASI1600 HaLRGB stars)

Uploaded: ...

Sky plot

Sky plot

Histogram

M51 - The Whirlpool Galaxy (Combined first light data from DSLR & recent data from ASI), Greg Mason

In these public groups

ZWO ASI 2600MC PRO
Texas Astronomy