The Deer Lick Group (right) is a group of galaxies with NGC 7331 in the foreground, and the galaxies surrounding it. NGC 7331 is approximately 40 million light years away, with the other Deer Lick members ~300 million light years behind it. Stephan's Quintet (left) is a grouping of 5 galaxies. It was also one of the first targets photographed by the JWST
Much like deerlick, one of them is in the foreground ~40 Mly away from us, and the other 4 are 210-340 Mly distant. These distant galaxies are interacting and will eventually merge together. Here is an annotated image showing more galaxies in the uncropped FOV. Captured on November 16th, 17th, and 18th, 2020 from a bortle 6 zone.
Acquisition: 12 hours 38 minutes (Camera at Unity Gain, -15°C)
Lum- 235x120"
Red- 48x120"
Green- 47x120
Blue- 49x120"
Darks- 30
Flats- 30 per filter
Capture Software:
Captured using N.I.N.A. and PHD2 for guiding and dithering.
PixInsight Processing:
BatchPreProcessing
SubframeSelector
StarAlignment
Blink
ImageIntegration
DrizzleIntegration (Luminance only)
DynamicCrop
DynamicBackgroundExtraction
Luminance:
EZ Decon and Denoise (Luminance only)
ArcsinhStretch
HistogramTransformation
RGB
StarAlign RGB stacks to Drizzled Lum
LinearFit to Green
ChannelCombintion
PhotometricColorCalibration
HSV Repair
ArcsinhStretch
HistogramTransformation
LRGBCombination with Lum
Nonlinear:
Several CurveTransformations to adjust lightness, contrast, saturation, etc
ACDNR
LocalHistogramEqualization
More Curves
EZ Star Reduction
Resample to 60%
DynamicCrop
Annotation
As someone who takes EXTREMELY amateur astrophotography pics with a 600mm lens, I am blown away by the time and work that went into this shot. Please keep posting
The Deer Lick Group (right) is a group of galaxies with NGC 7331 in the foreground, and the galaxies surrounding it. NGC 7331 is approximately 40 million light years away, with the other Deer Lick members ~300 million light years behind it. Stephan's Quintet (left) is a grouping of 5 galaxies. It was also one of the first targets photographed by the JWST
Much like deerlick, one of them is in the foreground ~40 Mly away from us, and the other 4 are 210-340 Mly distant. These distant galaxies are interacting and will eventually merge together. Here is an annotated image showing more galaxies in the uncropped FOV. Captured on November 16th, 17th, and 18th, 2020 from a bortle 6 zone.
Places where I host my other images:
Flickr
Equipment:
TPO 6" F/4 Imaging Newtonian
Orion Sirius EQ-G
ZWO ASI1600MM-Pro
Skywatcher Quattro Coma Corrector
ZWO EFW 8x1.25"/31mm
Astronomik LRGB+CLS Filters- 31mm
Astrodon 31mm Ha 5nm, Oiii 3nm, Sii 5nm
Agena 50mm Deluxe Straight-Through Guide Scope
ZWO ASI-120MC for guiding
Moonlite Autofocuser
Acquisition: 12 hours 38 minutes (Camera at Unity Gain, -15°C)
Lum- 235x120"
Red- 48x120"
Green- 47x120
Blue- 49x120"
Darks- 30
Flats- 30 per filter
Capture Software:
PixInsight Processing:
BatchPreProcessing
SubframeSelector
StarAlignment
Blink
ImageIntegration
DrizzleIntegration (Luminance only)
DynamicCrop
DynamicBackgroundExtraction
Luminance:
EZ Decon and Denoise (Luminance only)
ArcsinhStretch
HistogramTransformation
RGB
StarAlign RGB stacks to Drizzled Lum
LinearFit to Green
ChannelCombintion
PhotometricColorCalibration
HSV Repair
ArcsinhStretch
HistogramTransformation
LRGBCombination with Lum
Nonlinear:
Several CurveTransformations to adjust lightness, contrast, saturation, etc
ACDNR
LocalHistogramEqualization
More Curves
EZ Star Reduction
Resample to 60%
DynamicCrop
Annotation
As someone who takes EXTREMELY amateur astrophotography pics with a 600mm lens, I am blown away by the time and work that went into this shot. Please keep posting
Will do!