<![CDATA[ScienceDownEast - ScienceDownEast Astrophotography - Antares (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[IC 4604 (Rho Ophiuchi / Antares region) (Antares)]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Deep-Sky/Antares&image=IC+4604+masterLight_BIN-1_2160x3840_EXPOSURE-30.00s_FILTER-IRCUT_RGB_drizzle_2x.jpg IC 4604 (Rho Ophiuchi / Antares region)Click on the image to view it at full resolution, then click again for actual size.

IC 4604 is a reflection nebula surrounding the multiple star system Rho Ophiuchi, near the Antares region on the Ophiuchus/Scorpius border. It forms part of the larger Rho Ophiuchi cloud complex (also including IC 4603, IC 4605, and the dusty nebulosity around Antares itself), one of the closest active star-forming regions to the Sun, with distance estimates generally in the range of about 400-560 light-years. The region is prized by astrophotographers for its striking color palette: blue reflection nebulosity around Rho Ophiuchi, yellow-brown dust clouds, and the reddish glow associated with nearby Antares, all threaded with dark Barnard dust lanes. Because the nebulosity is faint and covers a wide field (roughly 4.5 by 6.5 degrees), it favors wide-field broadband imaging from a dark sky site over narrowband techniques.

[Source: general astronomical references, incl. deepskycorner.ch and Wikipedia Rho Ophiuchi cloud complex]

Moon PhaseFirst Quarter
CameraSeestar S30 Pro (4K Sony IMX585 sensor)
Optics160 mm focal length, f/5.3, 30 mm aperture (APO quadruplet)
FilterIRCUT
Date2026-05-23
PixInsight Processing
Fast Integration
Drizzle Integration
Dynamic Crop
BlurXTerminator (AI deconvolution)
Gradient Correction
Spectrophotometric Color Calibration
NoiseXTerminator (AI denoise)
StarXTerminator (star removal)
Generalized Hyperbolic Stretch (x6)
PixelMath
Curves Transformation

Date: July 28, 2026 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Deep-Sky/Antares&image=IC+4604+masterLight_BIN-1_2160x3840_EXPOSURE-30.00s_FILTER-IRCUT_RGB_drizzle_2x.jpg Sat, 23 May 2026 00:00:00 -0300 <![CDATA[IC 4604 (Rho Ophiuchi / Antares region) (Antares)]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Deep-Sky/Antares&image=masterLight_BIN-1_2160x3840_EXPOSURE-30.00s_FILTER-IRCUT_RGB_drizzle_2x_MAS.jpg IC 4604 (Rho Ophiuchi / Antares region)Click on the image to view it at full resolution, then click again for actual size.

IC 4604 is a reflection nebula surrounding the multiple star system Rho Ophiuchi, near the Antares region on the Ophiuchus/Scorpius border. It forms part of the larger Rho Ophiuchi cloud complex (also including IC 4603, IC 4605, and the dusty nebulosity around Antares itself), one of the closest active star-forming regions to the Sun, with distance estimates generally in the range of about 400-560 light-years. The region is prized by astrophotographers for its striking color palette: blue reflection nebulosity around Rho Ophiuchi, yellow-brown dust clouds, and the reddish glow associated with nearby Antares, all threaded with dark Barnard dust lanes. Because the nebulosity is faint and covers a wide field...

Moon PhaseFirst Quarter
CameraSeestar S30 Pro (4K Sony IMX585 sensor)
Optics160 mm focal length, f/5.3, 30 mm aperture (APO quadruplet)
FilterIRCUT
Binning1x1
Date2026-05-23
PixInsight Processing
Fast Integration
Drizzle Integration (x2)
Dynamic Crop
BlurXTerminator (AI deconvolution) (x2)
Gradient Correction
Spectrophotometric Color Calibration (x2)
NoiseXTerminator (AI denoise) (x2)
StarXTerminator (star removal)
Generalized Hyperbolic Stretch (x6)
PixelMath
Curves Transformation (x2)
Image Integration (x2)
Multiscale Adaptive Stretch
Multiscale Linear Transform

Date: July 28, 2026 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Deep-Sky/Antares&image=masterLight_BIN-1_2160x3840_EXPOSURE-30.00s_FILTER-IRCUT_RGB_drizzle_2x_MAS.jpg Sat, 23 May 2026 00:00:00 -0300 <![CDATA[Antares Annotated (Antares)]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Deep-Sky/Antares&image=masterLight_BIN_1_6034x4028_EXPOSURE_60_70s_FILTER_NoFilter_RGB_integration_Annotated.jpg Antares Annotated
Antares is a bright reddish star in the constellation Scorpius deriving its name from the Greek "Rival of Mars". "It has the Bayer designation α Scorpii, which is Latinised to Alpha Scorpii. Often referred to as "the heart of the scorpion", Antares is flanked by σ Scorpii and τ Scorpii near the center of the constellation. Distinctly reddish when viewed with the naked eye, Antares is a slow irregular variable star that ranges in brightness from an apparent visual magnitude of +0.6 down to +1.6. It is on average the fifteenth-brightest star in the night sky. Antares is the brightest and most evolved stellar member of the Scorpius–Centaurus association, the nearest OB association to the Sun. It is located about 170 parsecs from Earth at the rim of the Upper Scorpius subgroup, and is illuminating the Rho Ophiuchi cloud complex in its foreground. Classified as spectral type M1.5Iab-Ib, Antares is a red supergiant, a large evolved massive star and one of the largest stars visible to the naked eye." - Wikipedia

Total image time was 10 minutes.

Note: click on the image to view it at the full resolution of the uploaded image, then click again for actual size.
Exposure10 x 1 min.
ISO3200
CameraNikon D600 [6615 x 4016]
Optics70 mm Nikkor lens at F5.6
GuidingNone
ControllerBenro Polaris
FilterNone
LocationKejimkjuik National Park, Nova Scotia.
Date2024-06-05
ProcessingProcessed in PixInsight

Date: March 26, 2025 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Deep-Sky/Antares&image=masterLight_BIN_1_6034x4028_EXPOSURE_60_70s_FILTER_NoFilter_RGB_integration_Annotated.jpg Wed, 26 Mar 2025 17:50:04 -0300 <![CDATA[Antares (Antares)]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Deep-Sky/Antares&image=masterLight_BIN-1_6034x4028_EXPOSURE-60.70s_FILTER-NoFilter_RGB_stretched.jpg Antares
Antares is a bright reddish star in the constellation Scorpius deriving its name from the Greek "Rival of Mars". "It has the Bayer designation α Scorpii, which is Latinised to Alpha Scorpii. Often referred to as "the heart of the scorpion", Antares is flanked by σ Scorpii and τ Scorpii near the center of the constellation. Distinctly reddish when viewed with the naked eye, Antares is a slow irregular variable star that ranges in brightness from an apparent visual magnitude of +0.6 down to +1.6. It is on average the fifteenth-brightest star in the night sky. Antares is the brightest and most evolved stellar member of the Scorpius–Centaurus association, the nearest OB association to the Sun. It is located about 170 parsecs from Earth at the rim of the Upper Scorpius subgroup, and is illuminating the Rho Ophiuchi cloud complex in its foreground. Classified as spectral type M1.5Iab-Ib, Antares is a red supergiant, a large evolved massive star and one of the largest stars visible to the naked eye." - Wikipedia

Total image time was 10 minutes.

Note: click on the image to view it at the full resolution of the uploaded image, then click again for actual size.
Exposure10 x 1 min.
ISO3200
CameraNikon D600 [6615 x 4016]
Optics70 mm Nikkor lens at F5.6
GuidingNone
ControllerBenro Polaris
FilterNone
LocationKejimkjuik National Park, Nova Scotia.
Date2024-06-05
ProcessingProcessed in PixInsight

Date: March 26, 2025 ]]> https://www.sciencedowneast.com/zenphoto/index.php?album=Deep-Sky/Antares&image=masterLight_BIN-1_6034x4028_EXPOSURE-60.70s_FILTER-NoFilter_RGB_stretched.jpg Wed, 26 Mar 2025 17:50:03 -0300