https://www.sciencedowneast.com/zenphoto Sat, 08 Aug 2026 06:27:09 -0300 Sat, 08 Aug 2026 06:27:09 -0300 http://blogs.law.harvard.edu/tech/rss Zenphoto RSS Generator https://www.sciencedowneast.com/zenphoto/index.php?album=Clusters/M5&image=Leo+Triplety.jpg Click on the image to view it at full resolution, then click again for actual size.

Messier 5 (M5, NGC 5904) is a globular cluster in the constellation Serpens (Serpens Caput), and among the largest and oldest star clusters belonging to the Milky Way. It lies roughly 24,500-25,000 light-years from Earth and spans about 165 light-years in diameter, home to several hundred thousand stars whose ages are estimated at more than 12 billion years, making it one of the oldest known stellar populations in the Galaxy. At magnitude 5.6, M5 is faintly visible to the naked eye under dark skies and resolves in amateur telescopes into a dense, richly textured swarm of stars concentrated toward a bright core. It hosts over 100 known variable...

Moon Phase	Waning Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-04-24
PixInsight Processing	Image Integration (x2) Drizzle Integration Background Neutralization Automatic Background Extraction Dynamic Background Extraction Spectrophotometric Color Calibration BlurXTerminator (AI deconvolution) (x2) Integer Resample NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x2) HDR Multiscale Transform Curves Transformation (x3) StarXTerminator (star removal) PixelMath (x3)

Date: July 28, 2026 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Clusters/M5&image=Leo+Triplety.jpg Thu, 24 Apr 2025 00:00:00 -0300 https://www.sciencedowneast.com/zenphoto/index.php?album=Clusters/M5&image=drizzle_integration_ADBE.jpg Click on the image to view it at full resolution, then click again for actual size.

Messier 5 (M5, NGC 5904) is a globular cluster in the constellation Serpens (Serpens Caput), and among the largest and oldest star clusters belonging to the Milky Way. It lies roughly 24,500-25,000 light-years from Earth and spans about 165 light-years in diameter, home to several hundred thousand stars whose ages are estimated at more than 12 billion years, making it one of the oldest known stellar populations in the Galaxy. At magnitude 5.6, M5 is faintly visible to the naked eye under dark skies and resolves in amateur telescopes into a dense, richly textured swarm of stars concentrated toward a bright core. It hosts over 100 known variable stars, mostly RR Lyrae types, adding scientific interest to what is already one of the finest globular clusters visible from northern latitudes.

[Source: Wikipedia, en.wikipedia.org/wiki/Messier_5]

Moon Phase	Waning Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-04-24
PixInsight Processing	Image Integration (x3) Drizzle Integration Background Neutralization Automatic Background Extraction Dynamic Background Extraction Spectrophotometric Color Calibration BlurXTerminator (AI deconvolution) (x2) Integer Resample NoiseXTerminator (AI denoise) Generalized Hyperbolic Stretch (x2) Curves Transformation

Date: July 28, 2026 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Clusters/M5&image=drizzle_integration_ADBE.jpg Thu, 24 Apr 2025 00:00:00 -0300 https://www.sciencedowneast.com/zenphoto/index.php?album=Clusters/M5&image=drizzle_integration1_ADBE.jpg Click on the image to view it at full resolution, then click again for actual size.

Messier 5 (M5, NGC 5904) is a globular cluster in the constellation Serpens (Serpens Caput), and among the largest and oldest star clusters belonging to the Milky Way. It lies roughly 24,500-25,000 light-years from Earth and spans about 165 light-years in diameter, home to several hundred thousand stars whose ages are estimated at more than 12 billion years, making it one of the oldest known stellar populations in the Galaxy. At magnitude 5.6, M5 is faintly visible to the naked eye under dark skies and resolves in amateur telescopes into a dense, richly textured swarm of stars concentrated toward a bright core. It hosts over 100 known variable stars, mostly RR Lyrae types, adding scientific interest to what is already one of the finest globular clusters visible from northern latitudes.

[Source: Wikipedia, en.wikipedia.org/wiki/Messier_5]

Moon Phase	Waning Crescent
Camera	ToupTek ATR2600C
Optics	Skywatcher Esprit 120ED, 840 mm focal length, f/7 (120 mm aperture, APO triplet)
Date	2025-04-24
PixInsight Processing	Background Neutralization (x2) Automatic Background Extraction (x2) Dynamic Background Extraction (x2) Spectrophotometric Color Calibration (x2) BlurXTerminator (AI deconvolution) (x4) Integer Resample (x2) NoiseXTerminator (AI denoise) (x2) Generalized Hyperbolic Stretch (x4) Curves Transformation (x3) Image Integration (x2) Drizzle Integration HDR Multiscale Transform

Date: July 28, 2026 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Clusters/M5&image=drizzle_integration1_ADBE.jpg Thu, 24 Apr 2025 00:00:00 -0300