View allAll Photos Tagged OPH
One of my all time favourite regions of the night sky, shot under bortle 3 sky on July 30 2022.
Equipment:
- Nikon D300 modified
- Nikon 50mm lens with f1.8
- SkyWatcher Star Adventurer
Frames:
- 60 lights at ISO1600 x 180sec
- 52 darks
- 42 bias
- 38 flats
Processing software:
APP, PI, Adobe Lightroom
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.
Macro shot of the Pumpkin Pancakes from our weekly breakfast spot in Austin called "Original Pancake House". You can see the real maple syrup and a dusting of cinnamon! Yum!!
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...
Equipo Principal: Nikon D5100 (ISO 800) + Nikon 70-300 mm ED a 70 mm y F4 + SW Star Adventurer
Equipo Guía: Hercules Guidescope 130/32 + ZWO ASI 178mc
42 Lights 180" ISO 800
45 Darks
90 Bias
Procesado: Pixinsight 1.8.6 y PS
Dust and clouds in the Scorpius.
Taken with Canon 6D, Samyang 135mm lens, AP1200 mount.
Location: Tivoli Southern Sky, Namibia, June 2022.
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
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
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.
Stagecoach Merseyside & South Lancashire 26053 SN16 OPH on Chester Park & Ride route PR2 in Foregate Street, Chester. Bank Holiday Monday 27th May 2019. DSCN49071.
Alexander Dennis-Enviro200 (MMC).
Nottinghamshire Fire & Rescue Service - Scania P280 - Rescue Pump - Currently based at Arnold Fire Station
Nottinghamshire Fire & Rescue Service - Scania P280 - Rescue Pump - Currently based at Arnold Fire Station
Seen here responding to a reported house fire
Title:zeta OPH to SCO
Optics:Sigma 85mm Art(F=2.2)
Camera:Nikon D810A
Exposure:ISO2500 150sec x25(North) 150sec x 26(South）
Mount:Vixen SXD2
Date:2018/4/20@Ohdaigahara
Stagecoach in Chester.
Alexander Dennis E20D MMC B41F, new in 2016.
Photographed in Chester, April 2017.
This is an Augmented Reality (AR) Sky Projection on my iPhone 7 Plus camera's field of view.
It's a cloudy night. Only Venus was visible to my unaided eyes.
The star D OPH in Ophiuchus is circled in AR and is identified at the bottom.
This is an augmented reality projection of what this app knows about the sky in the southwest direction I am pointing the camera. I adjusted my orientation to capture both Venus and Jupiter which was about to move below my western building.
Note: I have not done any image post-processing at this point in time. I think I can sharpen the swimming pool and increase the contrast.
Augmented Reality is finally enabling me to do things I have wanted to do for most of my 84 years on this, our beautiful planet, Earth. And, I’m able to hold it in my hand❣️ it really is amazing and wonderful. ....... The computer in my iPhone 7 Plus is already outmoded and superseded by newer models. Still, it is many times faster and more powerful than the first IBM computer I managed and operated during the night shift At MIT’s Nuclear Physics computing facility. That was in 1964. If you want to see the computer and associated large tape drive units, try to find the movie “Hidden Figures.” We had one of the first ones as did NASA working on getting our first man in orbit. Do you remember Hollerith cards?
Tags:
"iPhone 7 Plus" Apps Sky Visualizing Visualization "Hand Held" "Augmented Reality" AR Night Day Backyard Astronomy Zodiac Stars Planets Mercury Venus Mars Jupiter Saturn Neptune Uranus Pluto Asteroids "International Space Station" "ISS Passes" FOV "Field Of View" "Sky View" "Sky Week" "Sky Guide" "Day & Night Map" "Star Walk" "Night Sky" "Sky Live" "Space Images" COSMOS Cosmology "Cosmic Zoom" "ISS Pass Finder" APOD "Day & NIght" "Golden Hour" "Lunar Solar Calendar" LunarSolCal Lunar Solar Calendar NASA
IMG_1587
Very first collaboration with the very beautiful Ophélie.
Please help me by following my Instagram account :