<![CDATA[ScienceDownEast - ScienceDownEast Astrophotography - M33 Triangulum Galaxy (Latest images)]]> https://www.sciencedowneast.com/zenphoto Sat, 08 Aug 2026 05:29:49 -0300 Sat, 08 Aug 2026 05:29:49 -0300 http://blogs.law.harvard.edu/tech/rss Zenphoto RSS Generator <![CDATA[M33 (Triangulum Galaxy) (M33 Triangulum Galaxy)]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=M33+Triangulum+Galaxy.jpg M33 (Triangulum Galaxy)Click on the image to view it at full resolution, then click again for actual size.

Messier 33, the Triangulum Galaxy, is a face-on spiral galaxy in the constellation Triangulum and the third-largest member of the Local Group after the Milky Way and Andromeda. It lies approximately 2.7 million light-years away, with a true diameter of roughly 60,000 light-years. Unlike the more dramatic M31, M33 has a comparatively low surface brightness, making it more challenging to image well from light-polluted skies despite its relatively large apparent size. Its loosely wound spiral arms host numerous star-forming HII regions, most notably NGC 604, one of the largest known star-forming regions in the Local Group. M33 rewards long, dark-sky exposures that bring out its faint spiral structure and pink-tinged nebular knots.

[Source: Wikipedia, en.wikipedia.org/wiki/Triangulum_Galaxy]

Moon PhaseWaxing Crescent
CameraToupTek ATR2600C
OpticsSkywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date2025-09-24
PixInsight Processing
Drizzle Integration (x2)
Channel Combination (x2)
PixelMath

Date: July 28, 2026 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=M33+Triangulum+Galaxy.jpg Wed, 24 Sep 2025 00:00:00 -0300 <![CDATA[M33 (Triangulum Galaxy) (M33 Triangulum Galaxy)]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=masterLight_BIN-1_1080x1920_EXPOSURE-30.00s_FILTER-IRCUT_RGB_drizzle_2x_%281%29_2.jpg M33 (Triangulum Galaxy)Click on the image to view it at full resolution, then click again for actual size.

Messier 33, the Triangulum Galaxy, is a face-on spiral galaxy in the constellation Triangulum and the third-largest member of the Local Group after the Milky Way and Andromeda. It lies approximately 2.7 million light-years away, with a true diameter of roughly 60,000 light-years. Unlike the more dramatic M31, M33 has a comparatively low surface brightness, making it more challenging to image well from light-polluted skies despite its relatively large apparent size. Its loosely wound spiral arms host numerous star-forming HII regions, most notably NGC 604, one of the largest known star-forming regions in the Local Group. M33 rewards long, dark-sky exposures that bring out its faint spiral structure and pink-tinged nebular knots.

[Source: Wikipedia, en.wikipedia.org/wiki/Triangulum_Galaxy]

Moon PhaseNew Moon
CameraSeestar S30
Optics150 mm focal length, f/5, 30 mm aperture (APO triplet)
Date2025-12-18
PixInsight Processing
Fast Integration (x2)
BlurXTerminator (AI deconvolution) (x3)
GraXpert (gradient removal) (x2)
Spectrophotometric Color Calibration (x2)
NoiseXTerminator (AI denoise) (x2)
StarXTerminator (star removal) (x2)
Generalized Hyperbolic Stretch (x9)
PixelMath (x2)
HDR Multiscale Transform
Drizzle Integration
Curves Transformation

Date: July 28, 2026 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=masterLight_BIN-1_1080x1920_EXPOSURE-30.00s_FILTER-IRCUT_RGB_drizzle_2x_%281%29_2.jpg Thu, 18 Dec 2025 00:00:00 -0400 <![CDATA[M33 using S30 - 6 hours (M33 Triangulum Galaxy)]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=masterLight_BIN-1_1080x1920_EXPOSURE-30.00s_FILTER-IRCUT_RGB_drizzle_2x_-1-_2.jpg M33 using S30 - 6 hoursClick on the image to view it at full resolution, then click again for actual size.

The M33 The Triangulum Galaxy is a spiral galaxy and is the third-largest member of the Local Group, after the Milky Way and the Andromeda Galaxy. It was originally known as the Triangulum Nebula and is cataloged as Messier 33, M33, and NGC 598. M33 has a D25 isophotal diameter of about 18.7 kiloparsecs (61,000 light-years) and is approximately 850 kpc (2.7 million light-years) from Earth. The galaxy’s name comes from the constellation Triangulum, the small northern constellation in which it is located. The Triangulum Galaxy has a total mass estimated to be on the order of 50 billion solar masses, making it significantly less massive than both the Milky Way and the Andromeda Galaxy. Unlike Andromeda, M33 does not have a prominent central bulge and is considered a relatively pure spiral galaxy. It is notable for its high rate of star formation and for containing some of the largest known H II regions, including NGC 604. M33 is gravitationally bound to the Andromeda Galaxy and is thought to be a satellite member of the Local Group. [from Wikipedia]

Total image time was 5.975 hours.

Moon PhaseWaning Crescent 1.3% - Waxing Crescent 1.1%
Exposure143 x 60 sec + 431 x 30 sec
Gain200
CameraZWO SeeStar S30 [1920 x 1080] IMX662
OpticsZWO SeeStar S30 EQ mode [Focal length 150, Aperture 30 mm, f/5]
GuidingNA
ControllerNA
FilterIR Cut
LocationLower Sackville, Nova Scotia.
Date2025-12-18 and 2025-12-20
ProcessingProcessed in PixInsight.
WeightedBatchPreprocessing Script [ 1x drizzle ]
BlurXTerminator
GraXpert
NoiseXTerminator
StarXTerminator
Generalized Hyperbolic Stretch on both the stars and starless images
HDRMultiScaleTransform on the Starless image
PixelMath to recombine the images
CurveTransformation


Date: December 21, 2025 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=masterLight_BIN-1_1080x1920_EXPOSURE-30.00s_FILTER-IRCUT_RGB_drizzle_2x_-1-_2.jpg Sun, 21 Dec 2025 11:50:25 -0400 <![CDATA[M 33 (M33 Triangulum Galaxy)]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=Stacked_144_M-33_60.0s_IRCUT_20251218-215044.jpg M 33Click on the image to view it at full resolution, then click again for actual size.

The M33 The Triangulum Galaxy is a spiral galaxy and is the third-largest member of the Local Group, after the Milky Way and the Andromeda Galaxy. It was originally known as the Triangulum Nebula and is cataloged as Messier 33, M33, and NGC 598. M33 has a D25 isophotal diameter of about 18.7 kiloparsecs (61,000 light-years) and is approximately 850 kpc (2.7 million light-years) from Earth. The galaxy’s name comes from the constellation Triangulum, the small northern constellation in which it is located. The Triangulum Galaxy has a total mass estimated to be on the order of 50 billion solar masses, making it significantly less massive than both the Milky Way and the Andromeda Galaxy. Unlike Andromeda, M33 does not have a prominent central bulge and is considered a relatively pure spiral galaxy. It is notable for its high rate of star formation and for containing some of the largest known H II regions, including NGC 604. M33 is gravitationally bound to the Andromeda Galaxy and is thought to be a satellite member of the Local Group. [from Wikipedia]

Total image time was about 2 hours.

Moon PhaseWaning Crescent 1.3%
Exposure144 x 60 sec
Gain200
CameraZWO SeeStar S30 [1920 x 1080] IMX662
OpticsZWO SeeStar S30 EQ mode [Focal length 150, Aperture 30 mm, f/5]
GuidingNA
ControllerNA
FilterIR Cut
LocationLower Sackville, Nova Scotia.
Date2025-12-18
ProcessingProcessed in PixInsight.
Slight PixInsight Processing
WeightedBatchPreprocessing Script [ 1x drizzle ]
BlurXTerminator
GraXpert
NoiseXTerminator
StarXTerminator
Generalized Hyperbolic Stretch on both the stars and starless images
HDRMultiScaleTransform on the Starless image
PixelMath to recombine the images
CurveTransformation


Date: December 20, 2025 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=Stacked_144_M-33_60.0s_IRCUT_20251218-215044.jpg Sat, 20 Dec 2025 11:35:46 -0400 <![CDATA[M_33 Stacked by PixInsight (M33 Triangulum Galaxy)]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=M_33_126x60sec_T16degC_2025-12-18_2.jpg M_33 Stacked by PixInsightClick on the image to view it at full resolution, then click again for actual size.

The M33 The Triangulum Galaxy is a spiral galaxy and is the third-largest member of the Local Group, after the Milky Way and the Andromeda Galaxy. It was originally known as the Triangulum Nebula and is cataloged as Messier 33, M33, and NGC 598. M33 has a D25 isophotal diameter of about 18.7 kiloparsecs (61,000 light-years) and is approximately 850 kpc (2.7 million light-years) from Earth. The galaxy’s name comes from the constellation Triangulum, the small northern constellation in which it is located. The Triangulum Galaxy has a total mass estimated to be on the order of 50 billion solar masses, making it significantly less massive than both the Milky Way and the Andromeda Galaxy. Unlike Andromeda, M33 does not have a prominent central bulge and is considered a relatively pure spiral galaxy. It is notable for its high rate of star formation and for containing some of the largest known H II regions, including NGC 604. M33 is gravitationally bound to the Andromeda Galaxy and is thought to be a satellite member of the Local Group. [from Wikipedia]

Total image time was about 2 hours.

Moon PhaseWaning Crescent 1.3%
Exposure126x 30 sec
Gain200
CameraZWO SeeStar S30 [1920 x 1080] IMX662
OpticsZWO SeeStar S30 EQ mode [Focal length 150, Aperture 30 mm, f/5]
GuidingNA
ControllerNA
FilterIR Cut
LocationLower Sackville, Nova Scotia.
Date2025-12-09
ProcessingProcessed in PixInsight.
PixInsight Processing
WeightedBatchPreprocessing Script [ 1x drizzle ]
BlurXTerminator
GraXpert
NoiseXTerminator
StarXTerminator
Generalized Hyperbolic Stretch on both the stars and starless images
HDRMultiScaleTransform on the Starless image
PixelMath to recombine the images
CurveTransformation


Date: December 20, 2025 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Galaxies/M33-Triangulum-Galaxy&image=M_33_126x60sec_T16degC_2025-12-18_2.jpg Sat, 20 Dec 2025 14:21:11 -0400