View allAll Photos Tagged Optolong
After two months of clouds, I finally saw some clear skies...
IC 5146 (the Cocoon Nebula) is a reflection /emission nebula (lower left) located about 2,500 light-years away in the constellation Cygnus.
Barnard 168 is a dark nebula that surrounds IC 5146 and forms the dark lane extending up and to the right in this image.
Reflection nebulae are clouds of interstellar dust which reflect the light of a nearby star or stars.
An emission nebula is a nebula formed of ionized gases that emit light of various wavelengths. The most common source of ionization is high-energy ultraviolet photons emitted from a nearby hot star.
A dark nebula or absorption nebula is a type of interstellar cloud, particularly molecular clouds, that is so dense that it obscures the visible wavelengths of light from objects behind it, such as background stars and emission or reflection nebulae.
Dark nebulae appear so because of sub-micrometer-sized dust particles, coated with frozen carbon monoxide and nitrogen, which effectively block the passage of light at visible wavelengths. Also present are molecular hydrogen, atomic helium, C18O (CO with oxygen as the 18O isotope), CS, NH3 (ammonia), H2CO (formaldehyde), c-C3H2 (cyclopropenylidene) and a molecular ion N2H+ (diazenylium), all of which are relatively transparent. These clouds are the spawning grounds of stars and planets, and understanding their development is essential to understanding star formation.
The history pertaining to the discovery of molecular clouds is closely related to the development of radio astronomy and astrochemistry. During World War II, at a small gathering of scientists, Henk van de Hulst first reported he had calculated the neutral hydrogen atom should transmit a detectable radio signal. This discovery was an important step towards the research that would lead to detecting molecular clouds.
The neutral hydrogen atom consists of a proton with an electron in its orbit. Both the proton and the electron have a spin property. When the spin state flips from a parallel condition to antiparallel, which contains less energy, the atom gets rid of the excess energy by radiating a spectral line at a frequency of 1420.405 MHz.
This frequency is generally known as the 21-cm line, referring to its wavelength in the radio band. The 21-cm line is the signature of HI and makes the gas detectable to astronomers back on earth. The discovery of the 21-cm line was the first step towards the technology that would allow astronomers to detect compounds and molecules in interstellar space.
Hydrogen is the most abundant species of atom in molecular clouds, and under the right conditions it will form the H2 molecule. Despite its abundance, the detection of H2 proved difficult. Due to its symmetrical molecule, H2 molecules have a weak rotational and vibrational modes, making it virtually invisible to direct observation.
The solution to this problem came when Arno Penzias, Keith Jefferts, and Robert Wilson identified CO in the star-forming region in the Omega Nebula. Carbon monoxide is a lot easier to detect than H2 because of its rotational energy and asymmetrical structure. CO soon became the primary tracer of the clouds where star-formation occurs. (WIKI)
Rio Rancho NM Bortle 5 zone, July 9 to forever, 2024
William Optics Redcat 51
ZWO 183mm pro
ZWO 30mm f/4 mini guide scope and ZWO 120 Mini
Optolong Ha G B filters
ZWO ASI Air Pro
Sky-Watcher HEQ5 (misbehaved, disassembled, changed nothing, cursed, reassembled...works again)
Darks GraXpert dithering
Gain 111 at -10C
Processed in DSS GraXpert and PS
Details:
Gain 125
Lights: 17x180s + 3x300s
Darks: 45x180s + 15x300s
Equipment:
William Optics Redcat51
ASI533MCPro
Sky Watcher EQ5Pro Goto
ASIAirPro
Optolong L-Extreme triband filter
DSS + Pixinsight + Adobe Photoshop + Topaz DeNoise AI
Annotated version:
Prints, cards and more are available via the website: shiny.photo/photo/Lobster-Claw-and-Bubble-Nebulae-020c146...
For the first time I can remember, we had an entire week of consecutive clear nights. No option but to make the most of it. So despite it being low on the northern horizon, I pointed my smaller refractor telescope at a well-known part of Cassiopeia.
There's a lot happening in this region of space. All the rusty orange-red is Hydrogen-alpha emission nebulosity; the bright blue is Oxygen-III emission nebula. At the bottom is the well-known Lobster-Claw nebula (Sh2-157); upper left is the Bubble Nebula (Sh2-162 or NGC 7635) - a giant molecular cloud being excited and pushed away by its central star; toward the upper right is a small bright emission nebula NGC7538 in neighbouring Cepheus surrounded by the Ha haze of Sh2-161.
I accumulated a total integration of 19 hours using a mixture of Optolong L-eNhance and IDAS NBZ dual-narrowband filters for the nebulae and Neodymium for the stars (so the colours are very realistic). In the process, the image became not just about the obvious bright glowing bits but also about the subtle veins of dark nebulae running through the Bubble and the large Y-shaped expanse in the upper third.
Whilst exploring in great detail, I stumbled across a rather fuzzy looking star just above the centre of the image, left of the top "claw" - with some research, it transpires this is HH-170, the first time I've spotted a HerbigâHaro object (a tiny reflection nebula, jets of partially ionized gas interacting with more gas and dust surrounding newly formed stars).
It was sufficiently low on the northern horizon that I had to abandon shooting for an hour each night while the neighbours' house got out the way. Shooting at near-full moon through the thickest part of the atmosphere made for a lot of light pollution which took some work removing in post. I look forward to reshooting throughout the season.
Much of the work with stacking and extracting Ha and OIII channels and fixing the star shapes and colours happened in PixInsight, but the final combination was performed in Affinity Photo for a dynamic precise control of how far the OIII intersected overlapping the Ha signal, most notable in the Lobster Claw.
Resultado al mezclar información de 3 horas 20 min totales con filtro Askar Ha-O3 y 1 horas con filtro Optolon Lpro de integración fotográfica utilizando Cámara dedicada QHY 183C, con una humedad relativa 75% y temperatura 10.8°C ambientales.
Tomas individuales de larga exposición de 300 seg, Ganancia 11 , Offset 30 y una temperatura de -20°C utilizando filtro Askar Ha-O3 y tomas 180 seg con los mismos parámetros que las anteriores mencionadas esta vez con filtro Optolong Lpro. Todas las tomas fueron realizadas en sector Roa , Región del Bio-Bio, Chile. (Bortle 4-5).
Se ha utilizado telescopio refractor TS 65mm apertura y 420mm df cuádruple, filtro Askar Ha-O3, Filtro Optolong LPro, dew heater ,montura CEM 40, PPB y cámara QHY 183C.
Apilado y procesado por PixInsight.
Fotografías realizadas en noches del 09 y 10 de Enero 2024. Sin dithering.
Magnitud:
NGC 2359 es una nebulosa de emisión en la constelación de Canis Major situada a algo más de 8 grados de Sirio (α Canis Majoris). Su inusual forma, semejante al casco de un guerrero vikingo, ha llevado a que sea conocida también como nebulosa del Casco de Thor. Puede ser observada, en cielos oscuros, con telescopios pequeños a 47x con la ayuda de filtros del tipo Oxígeno III.
La estrella que se encuentra en el interior de la burbuja, denominada WR 7 (HD 56925), posee magnitud aparente 11,5. Es una estrella de Wolf-Rayet y es la fuente que ilumina esta nebulosa de Wolf-Rayet. La nebulosidad es el resultado de la interacción entre el viento estelar procedente de la caliente estrella y la materia interestelar. El viento comprime la materia interestelar produciéndose una burbuja de gas en torno a la estrella. La masa de la burbuja se estima en unas 20 masas solares. Aunque de naturaleza similar a la nebulosa Burbuja (NGC 7635), la interacción con una nube molecular vecina parece haber contribuido a moldear la compleja forma de la nebulosa. (Wikipedia)
Messier 13, the Great Globular Cluster in Hercules, comprised of several hundred thousand stars. A senior citizen of the universe at 11.66 billion years of age. Located 22,180 ly from earth with a radius of 72.5 ly.
The galaxy visible in the lower left is NGC 6207, discovered by William Herschel on 16 May, 1787. It is located about 30 Mly from earth.
Rio Rancho NM Bortle 5/6 zone
April 14-15, 2022
William Optics Redcat 51
ZWO 183mc pro
ZWO 30mm f/4 mini guide scope and ZWO 120 Mini
Optolong L-Pro filter
ZWO ASI Air Pro
Sky-Watcher HEQ5
228 X 300s lights with darks, bias, dithering
Gain 111 at -10C
Processed in DSS and PS
March 5th 2021
Williams Optics Redcat 51
ZWO183mc pro
Optolong l-pro filter
ZWO air pro
Sky-Watcher HEQ5 Pro
10 x180s lights. Flats , darks and bias.
Gain 122 at -10C
Processed in APP and Pixinsight
LDN 1622 The Bogeyman Nebula is situated in the constellation of Orion a few degrees North of Orion's belt. In this view to the left is the bright nebula of Barnards Loop.
This image is a combination of RGB and Ha to enhance the nebulosity surrounding the dark cloud of the Bogeyman Nebula and Barnards Loop
Location: Gergal, Spain
Scope: William Optics GT 81
Camera: ZWO ASI2600MC Pro
Mount: Celestron CGX
Filters: Baader Moon & Sky Glow, Optolong L-Ultimate Dual Narrow band
Integration: 116x 600s L-Ultimate, 34x 300s & 600s Moon & Sky Glow
Total Integration: 22h 25m
This is the Rho Ophiuchi region shot with my Nikon D7000 and Rokinon 85mm f1.4 lens on an iOptron Skytracker mount. This is the first image I've done with the Optolong UHC filter as well, which added a tremendous amount of signal to the red channel.
I did two sets of exposures, one with the filter in and one without, each set is ISO 400 and f2.5, 2x 4 minutes, 2x 2 minutes, and 2x 1 minute exposures. Stacked with Deep Sky Stacker and edited with PixInsight and Photoshop. Shot from a Bortle 4/5 zone at Rockport Reservoir, Utah.
——— STRUMENTAZIONE ———
Telescopio: Askar acl200
Camera: Zwo Asi 2600 mc duo
Montatura: Zwo Am5
Filtro Optolong L-ultimate
Software d'acquisizione Sgpro
————— FOTO ————
temp 0 con dark, flat e darkflat
120 x 300s
————— ELABORAZIONE ———
Pixinsight
Photoshop
We are super excited to share our latest deep-sky project, a collaborative effort that brings a fresh perspective on the Carina Nebula and its surrounding mysteries.
The Mission: Our goal was to create a comprehensive view of the Carina Nebula ( only visible from the southern hemisphere), revealing the faint supernova remnants lurking in its shadows. This project was also a perfect opportunity to put my Redcat 51, a prize from a competition, to the test.
The Team: Logan Carpenter, Ken Hall, and myself, Steeve Body (also handling the processing). Together, we embarked on this journey, blending data from four different telescopes and focal lengths to capture the nebula's essence.
The Journey: Spanning a total of 152 hours of exposure, we navigated through capturing foundational images with a Redcat 51 and a 6200mc, crafting a detailed mosaic around the Southern Witch's Broom SNR, and exploring the Ha-rich regions near the Banana Nebula.
Highlights to Look Out For:
The Southern Witch's Broom Nebula, possibly a supernova remnant with its mesmerizing filaments.
Mysterious Ha structures near the Banana Nebula, hinting at the tales of stars long gone.
Noteworthy planetary nebulae sprinkled across the sky, each with its own story.
Hi Res: steevebody.com/portfolio/the-carina-nebula-and-surroundings/
Astrobin: www.astrobin.com/ybaj9k/
Details:
Telescopes:
Askar 107PHQ · Askar 65PHQ · Celestron RASA 11" V2 · William Optics Redcat 51
Cameras:
QHYCCD QHY600PH M · ZWO ASI1600MM Pro · ZWO ASI2600MM Pro · ZWO ASI6200MC Pro
Dates:
Jan. 28, 2024
Feb. 4 - 5, 2024
Feb. 7 - 8, 2024
Feb. 10, 2024
Feb. 28, 2024
Frames:
Antlia 3nm Narrowband H-alpha 36 mm: 120×600″(20h) (gain: 100.00) f/7.5 -10°C bin 1×1
Antlia 3nm Narrowband H-alpha 36 mm: 45×600″(7h 30′) (gain: 139.00) f/7 -10°C bin 1×1
Antlia 3nm Narrowband Oxygen III 36 mm: 281×600″(46h 50′) (gain: 100.00) f/7.5 -10°C bin 1×1
Antlia 3nm Narrowband Oxygen III 36 mm: 45×600″(7h 30′) (gain: 139.00) f/7 -10°C
Astronomik H-alpha CCD MaxFR 6nm 2": 95×600″(15h 50′) (gain: 100.00) f/2 -10°C
Optolong L-eXtreme 2": 294×600″(49h) (gain: 100.00) f/4.9 -10°C bin 1×1
ZWO UV IR CUT 2": 321×60″(5h 21′) (gain: 100.00) f/4.9 -10°C bin 1×1
Integration:
152h 1′
NGC 4565 (Needle Galaxy o Caldwell 38) è una galassia a spirale nella costellazione della Chioma di Berenice.
Mag: 9,7
Distanza: 52.000.000 a.l.
Data: 23-24/04/2020
Luogo: palmanova (UD) - ITALY
Telescopio: Newton Skywatcher 200/1000 F5
Montatura: n-eq6 pro
Camera: Canon 50d Super UV-IR cut
Filtro: Optolong L-Pro 2"
Guida: WO ZenithStar 66/388 + ZWO Asi 120mc
46 x 240" - 3 ore totali
Software: ATP, DDS, PS CS6, AA5
© Michael Ronutti
California Nebula.
30 Nov 2020 - Full Moon
Optolong L-Extreme filter, William Optics Redcat 51, ASI183MC Pro at -10C. 15 x 5 minute exposures at Gain 200 , 20 dark frames, 20 flat fields, 50 Bias frames.
Sky Watcher Sky Adventurer
Processed in APP and Pixinsight .
This is the mesmerizing Western side of the Veil Supernova remnant.
"Called the Veil Nebula, the debris is one of the best-known supernova remnants, deriving its name from its delicate, draped filamentary structures. The entire nebula is 110 light-years across, covering six full moons on the sky as seen from Earth, and resides about 2,100 light-years away in the constellation Cygnus, the Swan."
www.nasa.gov/image-feature/veil-nebula-supernova-remnant
Technical Info:
Optics: SGO 6" f/4 Imaging Newtonian @ 610mm FL
Explore Scientific 2" HR Coma Corrector
Camera: ZWO ASI533MC Pro
Filter: 2" Optolong L-Enhance
Mount: Losmandy GM8
Guiding: QHY Mini Guide Scope + PHD2 Software
Acquisition: Sequence Generator Pro
Exposure: Light (Gain 200) - 45 subs @ 240 Seconds (3 hours 0 Minutes)
Calibration: 30 Darks, 50 Bias
Processing: Deep Sky Stacker, Adobe Photoshop, Topaz Denoise AI, Astronomy Action Set plug in for PS, Astro Flat Pro plug in for PS
Eagle nebula (M16). This emission nebula is a star forming gas cloud. The ultraviolet radiation from the newly formed stars ionize the Hydrogen gas and let it emits red light. Its distance fro Earth is 5700 ly. Gear setup: iOptron GEM 45, WO 73 Douplet f/5.9, ZWO 294 MC cooled @ zero. ZWO mini guide scope, ZWO 120MM S, Optolong CLS. Acquisition by APT 25 x 300 sec subs with total integration of 2 hr & 5 min, 20 Darks, 50 Bias and 20 Flats. Processed by PS and Topaz Denoise AI.
Target: Flying Bat and Squid Nebulae, Sh2-129 and Ou4, Cepheus.
Location:8,15 and 16 Aug 2023, Aberdaron, Wales, Bortle 2, 45% Moon on 8th, no Moon on 15th and 16th.
Acquisition:66x 540s L-eXtreme calibrated with Bias, Darks, Dark-Flats and Flats. Total integration 9.9 hours.
Equipment:Altair 60EDF, 1x Flat 60. Optolong L-eXtreme. ZWO ASI2600MC-Pro, EAF, AM5.
Guiding:Altair MG32mini. ZWO ASI120MM-mini.
Software:NINA, PHD2 on Mele Quieter 3.
Processing:Affinity Photo2 with NoiseXTerminator, StarXTerminator and HLVG plug ins, GraXpert, Siril and AstroSharp.
Comments:I had sunk 19 hours into this target from my home Bortle 7 sky but the Squid was being swamped by the light pollution so I abandoned the project and started again with the same gear from the Welsh Bortle 2 skies getting this result in under 10 hours.
Northfield, OH
Oct 21, 28, Nov 22, 2022
Equipment--
Telescope: Explore Scientific ED 80, field flattener (no reducer), 480mm focal length
Mount: Sky-Watcher EQ6R-Pro
Camera: ZWO ASI204MC-Pro
Guide scope: Williams Optics 50mm guide scope
Guide camera: ZWO ASI120MM-S
Software: NINA, PHD2
Imaging--
Lights: 80x300s
Darks, Flats, DarkFlats, Bias: assorted
Sensor temp: -10.0
Filter: Optolong L-Pro
Sky: Bortle 6 (nominal)
Post processing--
Software: PixInsight, Photoshop
Dans la constellation du cygne, NGC 7000 est l’une des plus vastes nébuleuses du ciel boréal : elle représente dans le ciel une surface équivalente à plus de 4 pleine Lune (quasiment 6° au total).
Newton SkyWatcher 200/1000
Monture EQ6-r pro
ZWO ASI2600 MC pro
Correcteur de coma Baader MPCC Mk III
ZWO OAG + ZWO ASI 290mm mini
ZWO EAF
ASIAIR Pro
Filtre Optolong l-eXtreme 2"
Traitement PixInsight + Photoshop CC
Montage HOO
Acquisition sur trois nuits, les 7 8 et 09/06/2021
TOTAL : 107*300" => 8h55'
Jan 16th 2023
Celestron RASA 8"
ZWO183mc pro
ZWO EAF
Optolong L-Pro
ZWO air pro
Sky-Watcher HEQ5 Pro
50x 30s, 30*5s Lights, Flats , Darks and Bias.
Gain 122 at -10C
Processed in Pixinsight and Photoshop and GraXpert
Albanyà - Girona - Spain June 2020
Equipment used :
Canon 6D mod
Askar FRA 400mm + reducer f3.9
RGB 15 x 900" ISO 3200 Optolong L-eXtreme
Sky Watcher EQ6 Mount
Guide camera ASI120MM
Flats, Darks & Bias
Calibrated, stacked and processed with Pixinsight,
final tweaks with Lightroom
Camera: Canon RP (Astro modified)
Telescope: Askar FMA180 Pro
Mount: SW EQ6-R Pro
Expo: 282 x 300s (23.5h)
Filter: Optolong L-Pro clip-in
2025.09.19.-21. Várpalota, Hungary
WR63 (Supernova Remnant known as W63), Propeller Nebula, PM 1-320 (Planetary Nebula at bottom left), Cygnus...taken with Askar 65PHQ, ZWO ASI 2600MC, Optolong Ultimate, ZWO ASI AM5, 20x600", from Aosta Valley Western Alps.
June 8th 2021
Williams Optics Redcat 51
ZWO183mc pro
Optolong l-extreme filter
ZWO air pro
Sky-Watcher HEQ5 Pro
90 mins Lights. Flats , Darks and Bias.
Gain 122 at -10C
Processed in APP and Pixinsight
Continuing to work on the SHO palette
Target:IC 1848 Soul Nebula, Cassiopeia.
Location:17-1-24, St Helens, UK, Bortle 7, 48% moon, ambient -5c.
Acquisition:50x 540s L-eXtreme calibrated with bias, darks, flats and dark-flats. Total integration 7.5 hours.
Equipment:Altair 60EDF, 1x Flat60; Optolong L-eXtreme; ZWO ASI2600MCpro, EAF, AM5.
Guiding:Altair MG32mini, ZWO ASI120MMmini.
Software:NINA, PHD2 on Mele Quieter3.
Processing:Affinity Photo 2 with GraXpert, NoiseXTerminator, StarXTerminator and HLVG plug-ins; Siril; AstroSharp.
The Iris Nebula, NGC7023 is a bright reflection nebula. Distance 1,300 light-years away and is six light-years across. Data was collected using the Celestron RASA 8” telescope and Sony IMX071 CMOS sensor.
Camera: ASI071MC-Pro
Telescope: Celestron RASA 8
Aperture: f2.0
Mount: Celestron CGX
Filter: RASA8 LPS (Astrodon)
Frames: 97X30sec
Gain: 90 Offset: 20
OAT: 10°C
Camera Temp: -10°C
Guiding: ASI385MC
Bias: 50 frames
Darks: 50 frames
Post Processing: Pixinsight, PS, LR
My 2023 version of the Great Nebula in Orion (M42) and the Running Man Nebula (Sh2-279). Captured on 2/13/23 from my back yard in rural Pennsylvania under Bortle 4 skies, with a Nikon D750 and Sigma 150-500mm lens, using an Optolong L-Pro clip-in filter. Exposure settings were 168 x 32”, f/6.3, ISO 3200. This lens, though not the fastest, is pretty sharp at f/6.3 and is fast enough for a bright target like this. Even though this is one of the most photographed astro objects, and I myself have captured it many times, each Winter I can’t resist capturing it. It’s brightness and beautiful colors are too hard to resist. I hope you enjoy the image!
ZWO ASI533MC Pro
Optolong L-Extreme dual narrowband filter
Sky-Watcher Quattro 200P
Sky-Watcher Quattro Coma Corrector
Orion Atlas Mount EQ-G
ZWO ASI 120mm guide camera
Orion 50mm guide scope
ZWO ASIAir Mini
22 / 300sec exposures
10 Dark frames / 37 Flat frames
Bortle 6 skies
Processed with Pixinsight and Lightroom Classic
Costellazione del Cigno,
si pensa che tra le sue immense zone di idrogeno tempo fa è esplosa una supernova.
I resti di questa esplosione sono oggi visibili e prendono il nome di Nebulosa Crescent (NGC6888).
Questa immensa bolla in espansione (16 anni luce di diametro), destinata ad estinguersi nell’arco di qualche millennio, presenta delle zone ricche di atomi di ossigeno, che donano la caratteristica colorazione azzurrognola. Questi sembrano avvolgere come uno scudo i filamenti degli atomi di idrogeno ionizzato dalla stessa stella che ha causato la violentissima espulsione di materiale.
Elaborazione HaOIIIrgb
DATI DI SCATTO:
Telescopi o obiettivi di acquisizione: GSO 200/800 F/4
Camere di acquisizione: Nikon D5100 full Spectrum Modded
Montature: Losmandy G11
Telescopi o obiettivi di guida: Sky-Watcher 80/400 f5 acro
Camere di guida: QHYCCD5L-II-M
Software: PixInsight, Astro Photography Tool - APT Astro Photography tool, Adobe Photoshop CC Photoshop CC 2017
Filtri:Optolong UV/IR Cut, Optolong L-eNhance 2"
Accessori: OnStep by Howard Dutton OnStep, Explore Scientific HRCC Coma Corrector, Selfmade Peltier CoolingBox
Date:23 Aprile 2020, 22 Luglio 2020, 25 Luglio 2020, 26 Luglio 2020, 27 Luglio 2020
Pose:
Optolong L-eNhance 2": 85x600" ISO200 10C
Optolong UV/IR Cut: 16x300" ISO200 0C bin 1x1
Optolong UV/IR Cut: 55x300" ISO200 10C
Integrazione: 20.1 ore
Dark: ~30
Flat: ~20
Bias: ~100
Scala del Cielo Scuro Bortle: 4.00
Temperatura: 21.60
Risoluzione: 4725x2959
Origine dei dati: Giardino
[Reprocessed] This has been a challenging target. As usual the weather has not been cooperating for the last couple of months, so initially I was only getting a few hours of clear skies here and there. I also had to discard a lot of subs due to low clouds/fog, etc..., so I was very close to giving up at one point. Luckily, I had a few clear(ish) nights over the last week and managed to get overall >23 hours integration time with different filters. All is well that ends well!! :-)
* Telescope: William Optics FLT132 w/ Flat8 0.72x reducer
* Camera: ZWO ASI2600MC Pro cooled colour camera
* Filters: Optolong L-Ultimate 3nm dualband (Ha & Oiii), Antlia ALP-T 5nm dualband (Ha & Oiii) and Antlia ALP-T 5nm dualband (Hb & Sii)
* Mount: ZWO AM5 with ASIAir Plus
* Integration: 23h18m
* Post-Processing: PixInsight + Affinity Photo 2
I didn't think the Hb + Sii filter would get much signal, but at 10 minutes subs, I was able to see the contour of the core of the nebula in reddish (Sii) and the inside in blue (Hb). So, I'm glad I dedicated some time to the Hb+Sii filter.
More acquisition details in Astrobin: astrob.in/437k1m/J/
Clear Skies!!
========
Some basic info on NGC7822 from Wikipedia:
NGC 7822 is a young star forming complex in the constellation of Cepheus approximately 2,935 light years away. The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800–1000 pc distant, with the younger components aged no more than a few million years.
=====
Thanks for looking.
Clear Skies
The Crab nebula in Taurus, the remnant of a star which exploded in a supernova in 1054 AD.
This is an SHO tonemap and an integration of 6 hours data shot with each of Optolong S, H and O filters. The camera was a QHY163M and the scope was a WO FLT110. Image sequencing was managed via SGP and PHD2, post-processing was done in PixInsight.
Observed from Prachinburi, Thailand
Nébuleuse de l’Iris (NGC 7023)
📍 Constellation de Céphée | Distance : ~1 300 années-lumière
Je vous présente ma dernière image de la nébuleuse de l’Iris, une nébuleuse par réflexion située dans la constellation de Céphée. Illuminée par l’étoile HD 200775, cette région du ciel révèle de magnifiques volutes de poussière interstellaire, baignées dans une lumière bleutée caractéristique.
Cette image met en évidence les contrastes subtils entre les zones réfléchissantes et les structures sombres du nuage moléculaire environnant. Elle a été réalisée à partir de plusieurs sessions d’acquisition réparties sur deux périodes : mai 2025 et juin 2023.
Données techniques :
• Instrument : Sky-Watcher Equinox 80ED
• Caméra : Omegon veTEC 533C
• Monture : Orion Atlas EQ-G
• Filtre : Optolong L-Pro
• Temps d’intégration total : 100 x 5 minutes (soit 8 h 20 min)
• Traitement : Siril, PixInsight, Photoshop
My second Sombreiro Galaxy record (M 104). Processing is very laborious, and there is still a lot to improve. This record sums up the frames captured in the record I conducted in 2020 with the frames captured in 2021, totaling 15 hours and 10 minutes of exposure.
"With an apparent magnitude of 8, the Sombrero galaxy is beyond the limit of naked-eye visibility but can be spotted through small telescopes most easily during May. M104 is located 28 million light-years away in the constellation Virgo, and with a mass equal to 800 billion suns, it is one of the most massive objects in the Virgo galaxy cluster". Source: nasa.gov
Sky-Watcher 203mm F/5 EQ5 reflector with Onstep and ZWO EAF electronic focuser, Canon T6 (primary focus) modified, Optolong L-eNhance Filter (in part of the frames). 50mm Guidescope with ASI 290MC. 182 light frames (148x300" ISO 800 + L-eNhance: 34x300" ISO 1600), 80 dark frames. Processing: Sequator, PixInsight, Camera Raw and Fitswork.
@LopesCosmos
IC 443, better known as the Jellyfish nebula, is a supernova remnant in the constellation of Gemini.
This image was taken with a William Optics FLT110 telescope and a QHY268C OSC camera. It is a blend of 12 hours data shot with no filter and another 7 hours of narrowband data taken with an Optolong L-Ultimate filter. All post-processing was carried out in PixInsight.
The Pelican Nebula has been on my bucket list since I've been in my 20s. I'm delighted to have finally captured it!
The Pelican is an emission nebula close to the bright star Deneb in Cygnus, the Swan. Named for its resemblance to a pelican, (although my wife says it looks like a pteradactile!)
the nebula is associated with the neighbouring North America Nebula. It is a particularly active mix of star formation and evolving gas clouds.
#pelicannebula #Sh2-117 #IC5070
#astrophotography #astroeverywhere #astrobackyard #losmandy #losmandygm8 #zwo #asi533mcpro #optolong #l-enhance
Technical Info:
Optics: SGO 6" f/4 Imaging Newtonian @ 610mm FL
Explore Scientific 2" HR Coma Corrector
Camera: ZWO ASI533MC Pro
Filter: 2" Optolong L-Enhance
Mount: Losmandy GM8
Guiding: QHY Mini Guide Scope + PHD2 Software
Acquisition: Sequence Generator Pro
Exposure: Light (Gain 300) - 33 subs @ 180 Seconds
Calibration: 50 Bias, 30 Darks, 50 Flats
Processing: Deep Sky Stacker, Adobe Photoshop, Topaz Denoise AI, Astronomy Action Set plug in for PS, Astro Flat Pro plug in for PS
* Setup:
Telescope: Refractor Orion ED80
Focal Length: 600mm
Camera: QHY163M
Mount: Veronica CEM
Filters: LRGB Optolong and H-Alpha Baader
*Exposure:
L: 2.8 hours (subs 180s) bin1x1
Ha: 4.2 hours (subs 300s) bin1x1
R: 0.5 min. (subs 60s) bin2x2
G: 0.5 min. (subs 60s) bin2x2
B: 0.5 min. (subs 60s) bin2x2
Total: 8.5 hours
Mosaico di 2 pannelli
——— STRUMENTAZIONE ———
Telescopio: Skywatcher evostar ed80
Camera: Zwo Asi 294 mc
Montatura: Skywatcher AZ-EQ5
Autoguida: 60mm UltraGuide Artesky con zwo asi 224mc
Correttore 0.85x ed80 skywatcher
Filtro Optolong L-extreme
Software d'acquisizione Sgpro
————— FOTO ————
temp -10 con dark, flat e darkflat
148 x 300s
—— ELABORAZIONE ——
Pixinsight
Photoshop
astrobin: www.astrobin.com/icph8v/
Telescopio: Meade 115 6000 series
Cámara: ZWO ASI1600 MM-C
Filtros: Ha (Optolong 12nm) - R, G, B ZWO Premium Filters
Autoguiado: EZG-60 + Orion Starshoot Autoguider
Montura: Celestron CGEM
Ha: 50x300s
R: 60x60s
G: 60x60s
B: 60x60s
Temperatura: -10°C
Bin: 1x1
HaRGB
Pixinsight 1.8
Observatorio Astronómico Altaír
Poncitlán Jalisco México
Guillermo Cervantes Mosqueda
I like this lovely planetary nebula. It locates near the north celestial pole, and autoguiding did not work precisely.
Here is a frame taken without filter December 2013:
www.flickr.com/photos/hiroc/11990084845
equipment: AstroPhysics 130GTX "Granturismo," Field Flattener at f/6.7 focal length 873mm, 22.1mm Spacer, EOS Adapter, Kipon EOS-EOS R adapter, Optolong L-ultimate Dual 3nm Filter, and Canon EOS R-SP4II, modified by Seo-san on SkyWatcher CQ350 Pro Equatorial Mount without autoguiding
exposure: 15 times x 600 seconds, 6 x 240 sec, and 7 x 60 seconds at ISO 6,400 and f/6.8
site: 1,449m above sea level at lat. 35 24 30 North and long. 138 38 23 East near Mt.Fuji in Asagiri Shizuoka 静岡県朝霧高原. SQML was up to 20.93 after moonset at the night, though moon was in the sky during the session. Atmospheric turbulence was poor, and guiding error RMS was around 1,5". Wind was mild. Ambient temperature was around -1 degree Celsius or 30 degrees Fahrenheit.
February 6th 2022 from 22:06
Edinburgh Bortle 7/8 zone
Celestron RASA 8"
ZWO 183mc pro
ZWO EAF
Optolong l-pro
ZWO air pro
Sky-Watcher HEQ5 Pro
197x30ss lights with flats, darks and bias
Gain 122 at -10C
Processed in APP , Pixinsight and Photoshop
petit test du filtre optolong l ultimate sur la nébuleuse de la méduse ,IC443, dans la constellation des gémeaux
et NGC2175 , nébuleuse de la tête de singe dans la constellation d'Orion.
225 poses de 300s avec une asi 2600mc pro
lunette Askar FMA 230
ioptron GEM28
asiair pro
D.O.F
siril, photoshop, pixinsight.
ciel Bortle 6/7
Part of the NGC 7822 star forming complex in Cepheus constellation.
The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800–1000 pc distant.
RASA 11 on CEM60 mount
ZWO ASI2600mc duo camera with Optolong L-Pro filter
118 subframes 60s each
1 h 58m of exposure total
*Setup: Orion ED80 + QHY163M + Optolong LRGB filters
*Exposure: 2.2 hours for RGB and 4 hours for luminance
*Date: June 16, 2017.
*Local: Silvânia/GO/Brazil
The Whirlpool Galaxy, also known as Messier 51a (M51a) or NGC 5194, is an interacting grand-design spiral galaxy in the constellation Canes Venatici. It is somewhere between 23 and 30 million light years away and was discovered by Charles Messier on October 13, 1773, right after dinner, weeks before the annual Beaujolais nouveau festival.
M51's companion galaxy, NGC 5195, is a dwarf galaxy connected to M51 by a dust-rich tidal bridge.
An RGB image -- about 15 hours for each filter.
Rio Rancho NM Bortle 5 zone,
March 9, 2024 - April 5, 2024
William Optics Redcat 51
ZWO 183mm pro
ZWO 30mm f/4 mini guide scope and ZWO 120 Mini
Optolong R G B filters
ZWO ASI Air Pro
Sky-Watcher HEQ5
Darks GraXpert dithering
Gain 111 at -10C
Processed in DSS and PS
Na grande constelação do Escorpião, situada entre as estrelas Zeta e Mu Scorpii encontra-se esta nebulosa de emissão, catalogada como IC 4628 e conhecida no meio astrofotográfico como Nebulosa do Camarão. A nebulosa é uma das regiões gigantes de hidrogênio brilhante que delineia os braços espirais em nossa galáxia [1]. Ao lado esquerdo da nebulosa, encontram-se estrelas azuis extremamente quentes de classes espectrais B. Estas estrelas fazem parte do aglomerado estelar aberto catalogado como Trumpler 24. O tamanho angular deste objeto no céu equivale ao tamanho de uma lua cheia.
Mas o que estaria moldando o formato inusitado desta nebulosa? Fora do campo desta imagem, no lado esquerdo, há um outro aglomerado estelar aberto jovem conhecido como NGC 6231, distante de nós 4077 anos-luz [2]. Estudos apontam que a nuvem molecular em que NGC 6231 se formou já se dissipou mas que no entorno ainda existem nuvens moleculares [3]. Uma dessas nuvens é justamente a nebulosa desta imagem. O formato de IC 4628 estaria relacionado com o surgimento de NGC 6231, que dispersou a nuvem molecular através da radiação ultravioleta das estrelas do aglomerado, ventos estelares e até mesmo por uma explosão de supernova que pode ter ocorrido há 3 milhões de anos atrás. Esta explosão inclusive lançou no espaço sua estrela companheira binária HD 153919, uma estrela de alta massa que encontra-se a 4° distante de NGC 6231.
Fontes:
[1] Stars and Planets - page 320, Pasachoff J. M. - Peterson Field Guides, Fourth Edition
[3] The Structure of the Young Star Cluster NGC 6231. II. Structure, Formation, and Fate - Kuhn M. A., Getman K. V. et al - The Astronomical Journal, Volume 154, Number 6 - November, 2017
Registrei esta imagem durante três noites, em 15, 16 e 17 de julho de 2018 na comunidade rural Riacho do Mato - município de São Romão - Minas Gerais - Brasil. Um local com escala de Bortle entre 1 e 2.
Dados técnicos:
Gain: 0, Offset: 10, temperatura da câmera: -20°C, exposição total de 4h30m, darks, flats e dark flats aplicados.
O filtro H-Alpha foi utilizado tanto para enriquecer o canal Vermelho como para o canal de luminância.
Diante disto a composição da imagem é dita como HaHaRGB.
Filtros
H-Alpha: 24 x 300s / Bin 1x1
Vermelho: 10 x 300s / Bin 1x1
Verde: 10 x 300s / Bin 1x1
Azul: 10 x 300s / Bin 1x1
Equipamento:
- Montagem Equatorial Orion Atlas EQ-G
- Telescópio GSO Ritchey-Chretien 8" F8 Fibra de Carbono
- Câmera ZWO ASI1600MM Cooled
- Redutor focal Astro-Physics 67 CCDT
- Auto guiagem com câmera ZWO ASI120MM em OAG
- Roda de Filtros ZWO 8 posições
- Filtros Optolong 1,25" H-Alpha 7nm, Red, Green, Blue
Softwares
- Captura: APT - Astro Photography Tool 3.50
- Processamento: PixInsight 1.8 e Adobe Photoshop CS5
- Guiagem: PHD2
- Controle: EQMOD e SkyTechX
Resolução .............. 0.651 arcsec/px
Rotação ................ 90.474 deg
Distância focal .......... 1204.47 mm
Pixel size .............. 3.80 um
Campo de visão ........... 49' 49.5" x 37' 2.3"
Centro da imagem ............ RA: 16 56 56.286 Dec: -40 27 16.37
Lower's nebula is an emission nebula in Orion. It is #261 in the Sharpless catalog. In addition to hydrogen ion emissions, it is also quite strong in Sii and there is some Oiii as well.
For this image I combined 9 hours of data shot with an Optolong L-Ultimate filter on a William Optics FLT110 telescope and QHY268C camera; 3 hours of luminance data taken on the same scope and camera; 4 hours of Sii data captured with an ASI294MM camera on a WO Zenithstar 103 scope.
All post-processing was carried out in PixInsight.
Williams Optics Redcat 51
ZWO183mc pro
Optolong l-extreme filter
ZWO air pro
Sky-Watcher HEQ5 Pro
15x300s lights. Flats , darks and bias.
Gain 122 at -10C
Processed in APP and Pixinsight.
Will reprocess as there are some artifacts introduced during star masking.
The Monkey Head nebula on the border of Gemini and Orion. This image is an SHO blend with RGB stars shot with a WO FLT110 scope and QHY163M camera using Antlia 3nm filters and Optolong RGB filters. Around 6 hours of data in each NB channel and 2 hours in each of RGB. Image acquisition was managed via SGP, all post-processing was carried out in PixInsight.
Observed from Prachinburi, Thailand.