https://sciencedowneast.com/zenphoto Tue, 14 Apr 2026 15:29:50 -0300 Tue, 14 Apr 2026 15:29:50 -0300 http://blogs.law.harvard.edu/tech/rss Zenphoto RSS Generator https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/M51-Whirlpool-Galaxy&image=M51_CombineImagesTarget_no_bunnies_CT-standard-scale-2_00x-gigapixel-DeNoiseAI-severe-noise-SharpenAI-softness.jpg The Whirlpool Galaxy, also known as Messier 51 with its adjacent NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus. It lies in the constellation Canes Venatici, and was the first galaxy to be classified as a spiral galaxy. Its distance is estimated to be 31 million light-years away from Earth. A work in progress. This image does not have any narrow band data added.

Exposure	282@300 sec (23.5 hours)
ISO	800
Camera	Nikon Z7 [8856 x 5504]
Optics	Skywatcher Esprit 120mm Refractor, 840 mm focal length
Filter	Clear
Guiding	Phd2 using a ZWO 224MC on an Orion 60x240mm Guide scope
Controller	Images taken using Kstars on an Odroid-N2 (Raspberry Pi clone)
Location	Lower Sackville, Nova Scotia.
Date	2021-06-21
PixInsight Processing	WeightedBatchPreprocessing Script Dynamic Crop Automatic Background Extractor PhotometricColourCalibration MultiscaleLinearTransform HistogramTransform CurvesTransformation
Further tweaking in ImagesPlus to remove the dust bunnies; Lightroom; Topaz DeNoise AI, Sharpen AI and GigaPixel AI.

Date: March 26, 2025 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/M51-Whirlpool-Galaxy&image=M51_CombineImagesTarget_no_bunnies_CT-standard-scale-2_00x-gigapixel-DeNoiseAI-severe-noise-SharpenAI-softness.jpg Tue, 22 Jun 2021 22:02:55 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/M51-Whirlpool-Galaxy&image=masterLight_BIN-1_EXPOSURE-300.00s_FILTER-Clear_RGB_LIGHT-Clear_Pro-DeNoiseAI-low-light-SharpenAI-softness-standard-scale-2_00x-gigapixel.jpg The Whirlpool Galaxy, also known as Messier 51 with its adjacent NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus. It lies in the constellation Canes Venatici, and was the first galaxy to be classified as a spiral galaxy. Its distance is estimated to be 31 million light-years away from Earth. A work in progress. This image does not have any narrow band data added.

Exposure	80@300 sec (6.6 hours)
ISO	800
Camera	Nikon Z7 [8856 x 5504]
Optics	Skywatcher Esprit 120mm Refractor, 840 mm focal length
Filter	Clear
Guiding	Phd2 using a ZWO 224MC on an Orion 60x240mm Guide scope
Controller	Images taken using Kstars on an Odroid-N2 (Raspberry Pi clone)
Location	Lower Sackville, Nova Scotia.
Date	2021-06-13
PixInsight Processing	WeightedBatchPreprocessing Script Dynamic Crop Automatic Background Extractor PhotometricColourCalibration MultiscaleLinearTransform HistogramTransform CurvesTransformation
Further tweaking in Lightroom; Topaz DeNoise AI, Sharpen AI and GigaPixel AI.

Date: March 26, 2025 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/M51-Whirlpool-Galaxy&image=masterLight_BIN-1_EXPOSURE-300.00s_FILTER-Clear_RGB_LIGHT-Clear_Pro-DeNoiseAI-low-light-SharpenAI-softness-standard-scale-2_00x-gigapixel.jpg Tue, 15 Jun 2021 20:10:42 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/M51-Whirlpool-Galaxy&image=NGC5194_integrated_LRGB_c_r_DBE2.jpg M51 Whirlpool Galaxy as taken by the Burke-Gaffney Observatory Robot Planewave CDK24.
Exposure 10@60 sec sub frames for each of Red, Green, Blue and Luminance
ISO
Camera Planewave CDK24 [2048 x 2048]
Optics 3962 mm 610 mm Aperture.
Location St. Mary's University.
Date 2016-12-26
Processing After initial processing by the BGO robot, additional processing in PixInsight. The steps/tools followed were: LRGB Combination on the R,G,B, ScreenTransferFunction (for previewing), Dynamic Background Extraction, Background Neutralization, Colour Calibration, Dynamic Background Extraction (now on the luminance image), Histogram Transformation on both, HDR Multiscale (wavelet) Transformation, LRGB Combination on Lum and RGB, and finally SCNR (noise reduction) and tweaked in Lightroom.

Date: March 26, 2025 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/M51-Whirlpool-Galaxy&image=NGC5194_integrated_LRGB_c_r_DBE2.jpg Wed, 26 Mar 2025 17:50:04 -0300