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OUTFIT: OPH – Kerrdy Winter (also for playing GOLF)
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Antares and Rho oph region
Credit: Giuseppe Donatiello
Photographic test to verify the effectiveness of the SVBONY SV231 2" Color Correction Filter in removing residual purple fringe in my 110/250mm f/2.2 astrograph. The Antares region contains a good sample of spectral classes, making it suitable for this purpose.
I notice a clear benefit.
Antares and Rho Ophiuchi clouds complex
Credit: Giuseppe Donatiello
(Antares) RA 16 29 24.460 DEC -26 25 55.21
The Rho Ophiuchi cloud complex is a dark nebula of gas and dust that is located 1° south of the star ρ Ophiuchi. At an estimated distance of 131 ± 3 parsecs, this cloud is one of the closest star-forming regions to the Solar System. This cloud covers an angular area of 4.5° × 6.5° in the Sky.
The brightest star in this image is Antares (Alpha Scorpii or α Sco), the fifteenth brightest star in the sky and the brightest star in the constellation Scorpius.
Well visible also Messier 4 (NGC 6121), a globular cluster, approximately at 7,200 light years.
Antares is a red supergiant M1.5 Iab variable star and the brightest star in Scorpius (mag +1.07). It is one of the largest known, with a radius approximately 680 times that of the Sun. Being in an advanced stage of evolution, with a current mass 15 times that of the Sun, it is destined to explode as a supernova within 100,000 years [The Perkins Catalog of Revised MK Types for the Cooler Stars].
It forms a binary system with a smaller, hotter companion, Antares B [A&A, 700, A36 (2025)] [MNRAS, Volume 529, Issue 4, April 2024, Pages 3630–3650].
Like all red supergiants, it is losing mass at a rapid rate and is producing a cloud of dust. This material is particularly evident in the mid-infrared, but the star's light is sufficient to produce scattering on neutral dust clouds. Scattering causes the "reflected" light to shift slightly to shorter wavelengths, which is why the cloud surrounding the star appears distinctly orange/yellow instead of red.
Galactic Environment
Antares is part of the Scorpius-Centaurus stellar association, one of the closest OB associations to Earth. This association is divided into three subgroups, and Antares belongs to the Superior Scorpius subgroup [John M. Carpenter et al 2025 ApJ 978 117].
Messier 80 (top right) is a globular cluster located approximately 32,600 light-years (10kpc) [A&A 558, A53 (2013)].
NGC 6144 is a small globular cluster at 8.1 kpc (about 32,000 light-years) [The Astronomical Journal, Volume 119, Issue 4, pp. 1793-1802].
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Astrograph 110/250mm f/2.2
EOS 4000D
The Rho Oph region, Antares and the galactic center. Total exposure time of 12 minutes, ISO 3200s, subexposures of 40s. Tracking with the Polarie mount, Canon 6D and 70-200mm 2.8 IS II, from Cerro Tololo, Chile.
Antares and Rho Oph regions
Credit: Giuseppe Donatiello
The Ophiuchus Molecular Cloud Complex is a nearby region of low-mass star formation in the Gould Belt. In reality this is a generic name to indicate a certain number of substructures located at different distances and not necessarily connected.
The complex includes two dense clouds, LDN1688 and 1689, located at the ends of large-scale filaments extending in a northeasterly direction (Loren et al. 1990).
More strictly, the dense dark cloud LDN1688, 134 pcs away, is called the Ophiuchus Molecular Cloud. LDN1689 is instead found at 144 pc based on Gaia DR2 measurements (Ortiz-Leon et al. 2018).
The stellar content of the Ophiuchus star-forming complex has long been studied, revealing a rich environment of young stellar objects (YSOs), protostellar sources and prestellar cores at various evolutionary stages. While LDN1688 hosts dense star formation activity, L1689 is more quiescent (Nutter et al. 2006). Despite its significant mass, L1689 does not exhibit the same star formation activity as other regions of the Gould Belt, such as M16.
The entire Ophiuchus complex is under the strong influence and feedback of the Sco OB2 association.
Antares (α Scorpii) is a red supergiant about 170 pc (550 light years) away, therefore it is placed prospectively behind the molecular complex. Nonetheless, it is shrouded in a large reflection nebula that diffuses its light. The yellower color of this nebula is not a calibration error but an effect due to scattering which tends to shift the peak of light to shorter wavelengths. The star is a double view. Antares B is a sequence and mag 5.5 star of spectral type B2.5V (Evans 1966).
Antares is a red supergiant M1.5 Iab variable star and the brightest star in Scorpius (mag +1.07). It is one of the largest known, with a radius approximately 680 times that of the Sun. Being in an advanced stage of evolution, with a current mass 15 times that of the Sun, it is destined to explode as a supernova within 100,000 years [The Perkins Catalog of Revised MK Types for the Cooler Stars].
It forms a binary system with a smaller, hotter companion, Antares B [A&A, 700, A36 (2025)] [MNRAS, Volume 529, Issue 4, April 2024, Pages 3630–3650].
Like all red supergiants, it is losing mass at a rapid rate and is producing a cloud of dust. This material is particularly evident in the mid-infrared, but the star's light is sufficient to produce scattering on neutral dust clouds. Scattering causes the "reflected" light to shift slightly to shorter wavelengths, which is why the cloud surrounding the star appears distinctly orange/yellow instead of red.
Galactic Environment
Antares is part of the Scorpius-Centaurus stellar association, one of the closest OB associations to Earth. This association is divided into three subgroups, and Antares belongs to the Superior Scorpius subgroup [John M. Carpenter et al 2025 ApJ 978 117].
NGC 6144 is a small globular cluster at 8.1 kpc (about 32,000 light-years) [The Astronomical Journal, Volume 119, Issue 4, pp. 1793-1802].
The two globular clusters are much more distant. M4 is about 2.2 kpc (7500 light years) away while NGC 6144 is even 8.1 kpc 8 (about 32,000 light years).
flussistellari.wordpress.com/2023/06/22/un-lavoro-in-cors...
Oph and my tiny minimalistic "tree" ;)
Merry Doll Round Ophelia
Faceup Irrealdoll, hair Jpop
Necklace & headband by me
Dust and clouds in the Scorpius.
Taken with Canon 6D, Samyang 135mm lens, AP1200 mount.
Location: Tivoli Southern Sky, Namibia, June 2022.
The recurrent nova RS Oph (middle star) that lies about 5000 light-years away is currently in a rare outburst and easily visible with a magnitude of 4.6. The last outburst dates dates of 2006. The normal magnitude of this star is 9.6-13.5.
Read more at: www.cbat.eps.harvard.edu/iau/cbet/005000/CBET005013.txt
Color image taken at the remote observatory from the E-Eye site in Spain.
The image is composed of 40 minutes of exposure time with the ZWO ASI-2600MC color camera using a Takahashi Epsilon 180-ED Astrograph, riding on a 10 micron GM-2000.
En Opus #4 publicaron mi serie de ilustraciones dedicadas a las tazas de té, también un lindo cuestionario que me encantó responder:
P Oph Nebula IC 4604 , testing mod to Canon 1100D , some star trailing might due to heavy Nikon D7000 with lens piggy backing on setup or coma problem
I did not want to chuck the data because of the trailing as clear nights are few and far between.
26x360 lights ,20x darks,5x flats
SW200P,EQ6,Canon 1100D
A widefield DSLR Lens Astrophotography test of the large beautiful Rho Ophiuchi Cloud Complex with the wispy Blue Horsehead Nebula (IC 4592) visible in the top left (using a standard unmodified Nikon D750 and Nikon 105mm Lens without any filters).
The Rho Ophiuchi Cloud Complex:
Rho Ophiuchi is a dark nebula of gas and dust that is located 1° south of the star ρ Ophiuchi of the constellation Ophiuchus (close to the red Supergiant star Antares).
About the Interstellar Cloud Colors:
Fine dust illuminated from the front by starlight produces blue reflection nebulae. The atoms of gaseous clouds that are excited by ultraviolet starlight produce reddish emission nebulae. Back-lit dust clouds block light and appear dark. Antares (a red Super-giant star, and one of the brighter stars in the night sky), lights up the yellow-red dust clouds. Rho Ophiuchi lies at the center of the blue nebula. Interstellar clouds are even more colorful than we can see in visible light, emitting light across a large portion of the electromagnetic spectrum.
About this image:
While I was imaging a closer view of the Cloud Complex with my Telescope, I literally just pointed the D750 at the red Supergiant star Antares, and set the Intervalometer to shoot 3 minute exposures at ISO 1600. I used my Nikkor-Micro 105mm f2.8 Lens (stopped down from f/2.8 to f/4).
A BIG thank you to Nikon South Africa for letting me test their D750 for my latest Astrophotography events in Southern Africa.
Gear:
Nikon D750 DSLR.
Nikon AF-S VR Micro-Nikkor 105mm f/2.8G IF-ED (N Series) Lens.
Hahnel Giga T Pro II 2.4GHz Wireless Remote for Nikon.
Orion StarShoot Autoguider (with PHD Guiding).
Orion Mini 50mm Guide Scope.
Celestron SkySync GPS Accessory.
Celestron AVX Mount.
Celestron StarSense.
QHYCCD PoleMaster.
Lights/Subs:
35 x 180 sec. ISO 1600 RAW (NEF) exposures.
Calibration Frames:
30 x Bias
20 x Darks
Processing:
Pre-Processing and Linear workflow in PixInsight,
and finished in Photoshop.
Astrometry Info:
Center RA, Dec: 247.865, -23.181
Center RA, hms: 16h 31m 27.671s
Center Dec, dms: -23° 10' 52.726"
Size: 14.1 x 10.9 deg
Radius: 8.922 deg
Pixel scale: 31.8 arcsec/pixel
Orientation: Up is 90.8 degrees E of N
View an Aannotated Sky Chart for this image.
View this image in the World Wide Telescope.
&creditsUrl=&ra=246.467103&dec=-27.551071&x=1293.6&y=767.8&rotation=89.21&thumb=http://nova.astrometry.net/image/4953943){kind=link}
Download mh_Astro_Tools Suite:
(or from GitHub)
Also see:
Photo usage and Copyright:
Medium-resolution photograph licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Terms (CC BY-NC-ND 4.0). For High-resolution Royalty Free (RF) licensing, contact me via my site: Contact.
Martin
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Alexander Dennis E40D, ADL Enviro 400MMC (H47/32F)
Stagecoach South
Hard Interchange, Portsmouth
13 July 2023
Very first collaboration with the very beautiful Ophélie.
Please help me by following my Instagram account :
Nottinghamshire Fire & Rescue Service - Scania P280 - Rescue Pump - Currently based at Arnold Fire Station
This truck i bought last year started life as a RMC mixer and then fitted with a hopper body and used for Lime spreading on fields etc...but now its a tipper with a proper period 'muck body'
Recurrent nova RS Oph in outburst. I observed it with the naked eye and estimated: +4.6 mag. I took photos from Yuzhno-Morskoy (near Nakhodka), Russia, on August 9, 2021, from 15:19 to 15:22 UT. I have been waiting for several hours, and sky cleared for few minutes.
FN63OPH Nottinghamshire Fire and Rescue Service ET 24 P1 Scania emergency one based at Eastwood Fire Station
Assisting Derbyshire Fire and Rescue 6 pump 1 arial fire in disused building Heanor Road Ilkeston 10th June 2026
Thanks for viewing my photos on Flickr. I can also be found on Twitter and You Tube please subscribe to see the latest videos
Nottinghamshire Fire & Rescue Service - Scania P280 - Rescue Pump - Currently based at Arnold Fire Station
Seen here responding to a reported house fire
Stagecoach in Chester.
Alexander Dennis E20D MMC B41F, new in 2016.
Photographed in Chester, April 2017.
Very first collaboration with the very beautiful Ophélie.
Please help me by following my Instagram account :
Rho Oph
Credit: Giuseppe Donatiello
Tair-3S 300mm f/4.5 + Canon EOS 4000D on Avalon M-zero Obs mount
Antares is a red supergiant M1.5 Iab variable star and the brightest star in Scorpius (mag +1.07). It is one of the largest known, with a radius approximately 680 times that of the Sun. Being in an advanced stage of evolution, with a current mass 15 times that of the Sun, it is destined to explode as a supernova within 100,000 years [The Perkins Catalog of Revised MK Types for the Cooler Stars].
It forms a binary system with a smaller, hotter companion, Antares B [A&A, 700, A36 (2025)] [MNRAS, Volume 529, Issue 4, April 2024, Pages 3630–3650].
Like all red supergiants, it is losing mass at a rapid rate and is producing a cloud of dust. This material is particularly evident in the mid-infrared, but the star's light is sufficient to produce scattering on neutral dust clouds. Scattering causes the "reflected" light to shift slightly to shorter wavelengths, which is why the cloud surrounding the star appears distinctly orange/yellow instead of red.
Galactic Environment
Antares is part of the Scorpius-Centaurus stellar association, one of the closest OB associations to Earth. This association is divided into three subgroups, and Antares belongs to the Superior Scorpius subgroup [John M. Carpenter et al 2025 ApJ 978 117].
NGC 6144 is a small globular cluster at 8.1 kpc (about 32,000 light-years) [The Astronomical Journal, Volume 119, Issue 4, pp. 1793-1802].
Taken from Piano Visitone (1420m), Pollino National Park, Italy in August 2021.