https://sciencedowneast.com/zenphoto Thu, 22 Oct 2026 11:49:58 -0300 Thu, 22 Oct 2026 11:49:58 -0300 http://blogs.law.harvard.edu/tech/rss Zenphoto RSS Generator https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=NGC+7331+Wizard.jpeg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC...

Total image time was 57 minutes.

Moon Phase	First Quarter
Camera	Seestar S50 Pro (4K Sony IMX585 sensor)
Optics	260 mm focal length, f/5.2, 50 mm aperture
Filter	IRCUT
Binning	1x1
Stacking	StackingWizard, 57 frames
Date	2026-09-18
AstroWizard Processing	Crop (x2) GraXpert background extraction (0.5) Flatten sky background Color calibration BlurXTerminator (0.3) NoiseXTerminator (linear, 0.6) (x2) Stretch (deep) Stretch (deep) (starless) Star removal (StarXTerminator) Darken background (x3) Saturation adjustment Contrast (pop) adjustment NoiseXTerminator (non-linear, 0.6) Star recombination (screen blend)

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=NGC+7331+Wizard.jpeg Fri, 18 Sep 2026 00:00:00 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs+copy.jpg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC 7331 anchors a loose foreground grouping nicknamed the Deer Lick Group, sharing the field with several much fainter, far more distant background galaxies (NGC 7335, 7336, 7337, and 7340) that appear nearby only by chance alignment. It is a popular wide-field target alongside the more distant compact cluster known as Stephan's Quintet, roughly half a degree away.

[Source: Wikipedia, en.wikipedia.org/wiki/NGC_7331; Wikipedia, en.wikipedia.org/wiki/NGC_7331_Group]

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-07-29
PixInsight Processing	Image Integration (x4) Background Neutralization Automatic Background Extraction Dynamic Background Extraction BlurXTerminator (AI deconvolution) NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x3) SCNR Curves Transformation Dynamic Crop

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs+copy.jpg Tue, 29 Jul 2025 00:00:00 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_v2.jpg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC 7331 anchors a loose foreground grouping nicknamed the Deer Lick Group, sharing the field with several much fainter, far more distant background galaxies (NGC 7335, 7336, 7337, and 7340) that appear nearby only by chance alignment. It is a...

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-07-29
PixInsight Processing	Background Neutralization Automatic Background Extraction Dynamic Background Extraction Spectrophotometric Color Calibration BlurXTerminator (AI deconvolution) (x2) Integer Resample NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x11) Image Integration (x2) Drizzle Integration PixelMath Curves Transformation (x3) SCNR

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_v2.jpg Tue, 29 Jul 2025 00:00:00 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=drizzle_integration_ADBE_Annotated.jpg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC 7331 anchors a loose foreground grouping nicknamed the Deer Lick Group, sharing the field with several much fainter, far more distant background galaxies (NGC 7335, 7336, 7337, and 7340) that appear nearby only by chance alignment. It is a popular wide-field target alongside the more distant compact cluster known as Stephan's Quintet, roughly half a degree away.

[Source: Wikipedia, en.wikipedia.org/wiki/NGC_7331; Wikipedia, en.wikipedia.org/wiki/NGC_7331_Group]

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-07-29

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=drizzle_integration_ADBE_Annotated.jpg Tue, 29 Jul 2025 00:00:00 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_clone+copy.jpg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC 7331 anchors a loose foreground grouping nicknamed the Deer Lick Group, sharing the field with several much fainter, far more distant background galaxies (NGC 7335, 7336, 7337, and 7340) that appear nearby only by chance alignment. It is a popular wide-field target alongside the more distant compact cluster known as Stephan's Quintet, roughly half a degree away.

[Source: Wikipedia, en.wikipedia.org/wiki/NGC_7331; Wikipedia, en.wikipedia.org/wiki/NGC_7331_Group]

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-07-29
PixInsight Processing	Image Integration (x4) Background Neutralization Automatic Background Extraction Dynamic Background Extraction BlurXTerminator (AI deconvolution) NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x3) SCNR Curves Transformation Dynamic Crop

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_clone+copy.jpg Tue, 29 Jul 2025 00:00:00 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs.jpg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC 7331 anchors a loose foreground grouping nicknamed the Deer Lick Group, sharing the field with several much fainter, far more distant background galaxies (NGC 7335, 7336, 7337, and 7340) that appear nearby only by chance alignment. It is a...

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-07-29
PixInsight Processing	Background Neutralization Automatic Background Extraction Dynamic Background Extraction Spectrophotometric Color Calibration BlurXTerminator (AI deconvolution) (x2) Integer Resample NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x11) Image Integration (x2) Drizzle Integration PixelMath Curves Transformation (x3) SCNR

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs.jpg Tue, 29 Jul 2025 00:00:00 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_clone+copy+2.jpg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC 7331 anchors a loose foreground grouping nicknamed the Deer Lick Group, sharing the field with several much fainter, far more distant background galaxies (NGC 7335, 7336, 7337, and 7340) that appear nearby only by chance alignment. It is a popular wide-field target alongside the more distant compact cluster known as Stephan's Quintet, roughly half a degree away.

[Source: Wikipedia, en.wikipedia.org/wiki/NGC_7331; Wikipedia, en.wikipedia.org/wiki/NGC_7331_Group]

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-07-29
PixInsight Processing	Image Integration (x4) Background Neutralization Automatic Background Extraction Dynamic Background Extraction BlurXTerminator (AI deconvolution) NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x3) SCNR Curves Transformation Dynamic Crop

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_clone+copy+2.jpg Tue, 29 Jul 2025 00:00:00 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_v3.jpg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC 7331 anchors a loose foreground grouping nicknamed the Deer Lick Group, sharing the field with several much fainter, far more distant background galaxies (NGC 7335, 7336, 7337, and 7340) that appear nearby only by chance alignment. It is a...

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-07-29
PixInsight Processing	Background Neutralization Automatic Background Extraction Dynamic Background Extraction Spectrophotometric Color Calibration BlurXTerminator (AI deconvolution) (x2) Integer Resample NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x11) Image Integration (x2) Drizzle Integration PixelMath Curves Transformation (x3) SCNR

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_v3.jpg Tue, 29 Jul 2025 00:00:00 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_v3_cropped.jpg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC 7331 anchors a loose foreground grouping nicknamed the Deer Lick Group, sharing the field with several much fainter, far more distant background galaxies (NGC 7335, 7336, 7337, and 7340) that appear nearby only by chance alignment. It is a...

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-07-29
PixInsight Processing	Background Neutralization Automatic Background Extraction Dynamic Background Extraction Spectrophotometric Color Calibration BlurXTerminator (AI deconvolution) (x2) Integer Resample NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x11) Image Integration (x2) Drizzle Integration PixelMath Curves Transformation (x3) SCNR Dynamic Crop

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_v3_cropped.jpg Tue, 29 Jul 2025 00:00:00 -0300 https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_clone.jpg Click on the image to view it at full resolution, then click again for actual size.

NGC 7331 is a large, unbarred spiral galaxy in the constellation Pegasus, located roughly 39-40 million light-years away and often cited as one of the closest visual analogs to our own Milky Way in overall size and structure. Discovered by William Herschel in 1784, it is inclined steeply to our line of sight, showing an elongated disk, a prominent central bulge, and a dust lane along one edge; unusually, its bulge is known to rotate in the opposite direction to its outer disk. NGC 7331 anchors a loose foreground grouping nicknamed the Deer Lick Group, sharing the field with several much fainter, far more distant background galaxies (NGC 7335, 7336, 7337, and 7340) that appear nearby only by chance alignment. It is a popular wide-field target alongside the more distant compact cluster known as Stephan's Quintet, roughly half a degree away.

[Source: Wikipedia, en.wikipedia.org/wiki/NGC_7331; Wikipedia, en.wikipedia.org/wiki/NGC_7331_Group]

Moon Phase	Waxing Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-07-29
PixInsight Processing	Image Integration (x4) Background Neutralization Automatic Background Extraction Dynamic Background Extraction BlurXTerminator (AI deconvolution) NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x3) SCNR Curves Transformation Dynamic Crop

Date: October 11, 2026 ]]> https://sciencedowneast.com/zenphoto/index.php?album=Galaxies/NGC7331-Deer-Lick-Group&image=Supernova+2025rbs_clone.jpg Tue, 29 Jul 2025 00:00:00 -0300