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The last full moon of 2020 as it rises above the mountain which protects a nearby bay from the northern winds. Orion is bright enough to be visible against the bright moonshine. I hope the next full moon will find our planet in a better shape.
Technical Details:
Canon 6D at ISO 800. Tamron 24-70mm f/2.8 at 24mm f/8, 10 second exposure time.
More details at AstroBin.
A deep field attempt at capturing Markarian's Chain and surrounding Ha gas.
More than 92 hours of exposure in Ha, Lum and RGB did not reveal as much data as I expected but very happy with the deep field view of all the background galaxies in this fascinating group.
Imaged over three months in April, May and June 2025 at Los Coloraos, Gorafe, Spain. Unfortunately the weather was not kind and many of the frames were discarded due to clouds.
Markarian's Chain is a stunning string of galaxies located within the larger Virgo Cluster. From our perspective on Earth, these galaxies appear to form a gently curving line across the night sky, creating a beautiful cosmic alignment. It was named after Armenian astrophysicist Benjamin Markarian, who in the 1960s discovered their shared motion through space.
This "chain" is not just a visual coincidence; many of the galaxies are gravitationally interacting, influencing each other's shapes and movements. Notable members include the famous Messier galaxies M84 and M86, along with the "Eyes Galaxies" (NGC 4435 and NGC 4438), which show clear signs of a past close encounter.
Markarian's Chain offers a fascinating glimpse into galaxy evolution and interactions within a dense cluster environment. It's a popular target for amateur astronomers, showcasing a variety of galaxy types, from elliptical to spiral, all bound together in a grand cosmic dance.
High resolution download and more information, visit AstroBin:
Description
First image captured with the new dual rig configuration.
More than 56 hours of integration time. (Usually I am integrating 25 hours.. now dual rig :D is working ).
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575.
The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. (Desc creditcs: Wikipedia)
Technical card
Imaging telescopes or lenses:Altair Astro RC250-TT 10" RC Truss Tube, Teleskop Service TS Photoline 107mm f/6.5 Super-Apo
Imaging cameras:ZWO ASI183MM-Cool, ZWO ASI1600MM-Cool
Mounts:Mesu 200 Mk2, Skywatcher EQ6R Pro
Guiding telescopes or lenses:Teleskop Service TSOAG9 Off-Axis Guider, Celestron OAG Deluxe
Guiding cameras:ZWO ASI174 Mini, ZWO ASI290 Mini
Focal reducers:Riccardi Reducer/Flattener 0.75x, Telescope-Service TS 2" Flattener
Software:Main Sequence Software Seqence Generator Pro, Pleiades Astrophoto PixInsight
Filters:Optolong OIII 6.5nm 36mm, Optolong SII 6.5nm 36mm, Astrodon HA 36mm - 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm, Astrodon S-II 36mm - 5nm, Astrodon O-III 36mm - 5nm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30, MoonLite CSL 2.5" Focuser with High Res Stepper Motor
Resolution: 2090x1760
Dates:Oct. 1, 2019, Oct. 11, 2019, Oct. 16, 2019, Oct. 18, 2019, Oct. 23, 2019, Oct. 28, 2019
Frames:
Astrodon B Gen.2 E-series 36mm: 70x30" (gain: 75.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 70x30" (gain: 75.00) -20C bin 1x1
Astrodon HA 36mm - 5nm: 162x600" (gain: 200.00) -20C bin 1x1
Optolong OIII 6.5nm 36mm: 83x600" (gain: 111.00) -15C bin 1x1
Astrodon R Gen.2 E-series 36mm: 70x30" (gain: 75.00) -20C bin 1x1
Astrodon S-II 36mm - 5nm: 82x600" (gain: 111.00) -15C bin 1x1
Integration: 56.2 hours
Avg. Moon age: 12.78 days
Avg. Moon phase: 51.26%
Astrometry.net job: 3037365
RA center: 350.189 degrees
DEC center: 61.178 degrees
Pixel scale: 1.007 arcsec/pixel
Orientation: 270.802 degrees
Field radius: 0.382 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
Astrobin Top Pick
Kronberger 63 is a planetary nebula in the constellation of Orion . It was discovered by Austrian Mattias Kronberger who is a member of the amateur group Deep Sky Hunters.
It is very faint and thus rarely imaged. Indeed my searches have found only one other image, produced by the Chart32 team in Chile.
Astrodon Blue: 21x300"
Astrodon Green: 20x300"
Astrodon Red: 20x300"
Astrodon OIII: 48x1800s bin 2x2
Astrodon Ha: 26x1800s bin 2x2
Total Integration: 42 hours
Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length)
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS
NGC 6914 is a reflection nebula located at approximately 6,000 light-years away in the constellation of Cygnus
Technical card
Imaging telescope or lens:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo
Imaging camera:ZWO ASI1600MM-Cool
Mount:Astro-Physics Mach-1 GTO CP4
Guiding telescope or lens:Celestron OAG Deluxe
Guiding camera:QHYCCD QHY5III174
Focal reducer:Riccardi Reducer/Flattener 0.75x
Software:Main Sequence Software Seqence Generator Pro, Astro-Physics AAPC, Pleiades Astrophoto PixInsight
Filters:Astrodon HA 36mm - 5nm, Astrodon S-II 36mm - 5nm, Astrodon O-III 36mm - 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30
Resolution: 4480x3355
Dates: July 23, 2017, Aug. 3, 2018, Aug. 5, 2018
Frames:
Astrodon B Gen.2 E-series 36mm: 15x10" (gain: 200.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 15x10" (gain: 200.00) -20C bin 1x1
Astrodon HA 36mm - 5nm: 25x300" (gain: 200.00) -20C bin 1x1
Baader Planetarium Ha 1.25" 7nm: 38x120" (gain: 200.00) -20C bin 1x1
Astrodon O-III 36mm - 5nm: 21x300" (gain: 200.00) -20C bin 1x1
Astrodon R Gen.2 E-series 36mm: 15x10" (gain: 200.00) -20C bin 1x1
Astrodon S-II 36mm - 5nm: 25x300" (gain: 200.00) -20C bin 1x1
Integration: 7.3 hours
Avg. Moon age: 14.63 days
Avg. Moon phase: 35.09%
Astrometry.net job: 2200954
RA center: 306.191 degrees
DEC center: 42.489 degrees
Pixel scale: 1.471 arcsec/pixel
Orientation: 269.573 degrees
Field radius: 1.143 degrees
Locations: Berga Resort, Berga, Barcelona, Spain
Data source: Backyard
Takahashi Epsilon 160 ED
Montura CGE PRO - DIY ONSTEP
Cámara QHY268C con filtro L genérico
Guiado con Astromania 60/240mm y ASI 178MM
105x300s, -20°, Gain 0, Offset 30, photographic mode
Darks, flats, bias flats
Procesada en PI y Darktable
Ahuacatepec, Jalisco, México, Marzo del 2023
Instagram: @fdopc
astrobin: www.astrobin.com/users/DrChaos/
RGB data is a kindness of my dear Friend Leandro Fornaziero
English Below:
Localizada na constelação de ARA (do latim O ALTAR), essa linda nebulosa foi descoberta por John Herschel em 1836, usando um telescópio refletor de 18 polegadas.
No topo da imagem podemos ver um belo aglomerado: NGC 6193, responsável pela nebulosa de reflexão dentro de 6188. Esse aglomerado está envolto em espessas nuvens de gás e poeira.
As estrelas mais quentes do aglomerado, duas gigantes do tipo O HD 150135 e HD 150136, (as estrelas brilhantes na imagem) são a fonte de iluminação da nebulosa de emissão NGC 6188.
Há uma interessante curiosidade a cerca de uma estrela em particular: HD 150136 é um notável sistema binário composto por uma enorme estrela do tipo O3 e uma estrela do tipo O6V que estão quase em contato uma com a outra. A colisão dos ventos estelares do par pode ser responsável pela emissão de raios X deste sistema estelar.
Além da nebulosa de emissão, é bom destacar os incríveis filamentos negros que aparecem na imagem. Muitos deles tem dezenas de anos luz de comprimento.
A distância estimada é de 4000 anos-luz, e toda a região de emissão está envolta em uma grande nuvem escura.
A região é densamente constituída por estrelas jovens, potencializando o brilho e os ventos nebulosos.O campo desta imagem tem o tamanho aproximado de 4 luas cheias e corresponde a cerca de 150 anos luz de diâmetro.
Os fortes ventos estelares das estrelas do aglomerado moldaram essa linda nebulosa. Comummente ela é chamada de “Batalha de Dragões de Ara”, devido ao formato parecido ao de dois Dragões duelando.
English:
Located in the constellation ARA (from the Latin THE ALTAR), this beautiful nebula was discovered by John Herschel in 1836, using an 18-inch reflecting telescope.
At the top of the image we can see a beautiful cluster: NGC 6193, responsible for the reflection nebula within 6188. This cluster is wrapped in thick clouds of gas and dust.
The hottest stars in the cluster, two giants of the type O, HD 150135 and HD 150136, (the bright stars in the image) are the source of illumination of the emission nebula NGC 6188.
There is an interesting curiosity about a particular star: HD 150136 is a remarkable binary system composed of a huge O3-type star and an O6V-type star that are almost in contact with each other. The collision of the stellar winds of the pair may be responsible for the X-ray emission of this stellar system.
Besides the emission nebula, it is good to highlight the incredible black filaments that appear in the image. Many of them are tens of light-years in length.
The estimated distance is 4000 light-years, and the whole emission region is shrouded in a large dark cloud.
The region is densely constituted by young stars, enhancing brightness and cloudy winds. The field of this image is approximately 4 full moons in size and corresponds to about 150 light years in diameter.
The strong stellar winds of the cluster stars shaped this beautiful nebula. Commonly it is called "Battle of Ara Dragons", due to the shape similar to that of two dueling Dragons.
10hr 48' with all 4 minutes exposures at iso-1250
⚙️ Taken with Unmodified Canon 60d through an Orion 8” newtonian astrograph with coma correcter & apature ring, autoguided with a orion starshoot autoguider 60mm guide scope, all on a Celestron AVX mount.
💻 Processing: deepsky stacker for regester, stacking. Pixlinsight: Background ext, noisexterminator, blur terminator, histogram stretch, added mask curves saturations, starmask for star reduction. Photoshop: selective color adjustments, levels, color balance, unsharp mask.
📍Clarksdale Missouri Bortel skies 3
For a higher resolution click link:app.astrobin.com/u/jb-astro?i=25bcao#gallery
M16 contains two famous pillar groups: the Pillars of Creation, made famous by the iconic 1995 HST image, and the other major pillar which looks to me like a dragon head, also recorded in extreme resolution by the HST.
This image is the result of 4.5 hours of imaging on June 10 and 13, 2013 at Sugar Grove Observatory. See some more information at www.astrobin.com/45246
1100mm/F7.3 telescope
Pentax 645z (astro-modified)
total exposure time = 17.6 hr
see more technical details at: www.astrobin.com/uhnnh1/
NGC 2070, The Tarantula Nebula redux version
Completely reprocessed from scratch… it took me 3 months to understand how to process this one…
This image consist of 22.5h of narrowband data with an additional 1.5h for the RGB stars
Astrobin: www.astrobin.com/by3ftp/
🔭: Askar 107 PHQ
📷: ASI 1600mm Pro
Mount: Skywatcher EQ6-R
️: -10
⚫️: Antlia Ha 3nm 45x 600s
⚫️: Antlia Oiii 3nm 45x 600s
⚫️: Antlia Oiii 3nm 45x 600s
🔴: Antlia Pro Red 40 x 45s
: Antlia Pro Green 40 x 45s
🔵: Antlia Pro Blue 40 x 45s
Integration:
24h
The Lambda Orionis Ring resembles a red flower and this image brings it together with the most famous rose in the winter night sky, the Rosette Nebula. Maybe it is the upcoming Valentine's Day to blame for my wild imagination. With this image I am hoping to give you the opportunity to spark your imagination and love, and why not, share it with your loved one!
This is a 3-panel mosaic made from old, lost data. Processed with the new Starnet version 2 in PixInsight, on a salvaged JPEG file. Some final touches done with love in Lightroom Classic 2022.
Technical Details:
Three hours of total exposure (3 x 60 x 60 sec frames) using an unmodified Canon 6D at ISO 1600 and a Samyang 135mm f/2 lens wide-open. The frames were taken under suburban skies (Bortle 5) on January 5, 2019. Tracked with a Star Adventurer Mini bundle. The image was down-sampled by a factor of two, to counteract for the low tracking quality present in the source data. More details at AstroBin.
NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices.
It lies close to the North Galactic Pole and has a visual magnitude of approximately 10.
It is known as the Needle Galaxy for its narrow profile.
For this picture I selected only the best 257 images (from initial 404 frames of 180s.) on Luminance channel to stack.
It was a long and detailed process to confirm only the best of the best captures, I called them superframes :D
(desc. credits: wikipedia)
I like so much to compare with my first image of this target www.astrobin.com/287894/B two years ago and see my progress :D
A link to the annotated image:
astro.carballada.com/wp-content/uploads/2019/04/LRGB_L_An...
Technical card
Imaging telescope or lens:Altair Astro RC250-TT 10" RC Truss Tube
Imaging camera:ZWO ASI1600MM-Cool
Mount:Astro-Physics Mach-1 GTO CP4
Guiding telescope or lens:Celestron OAG Deluxe
Guiding camera:QHYCCD QHY5III174
Focal reducer:Riccardi Reducer/Flattener 0.75x
Software:Main Sequence Software Seqence Generator Pro, Astro-Physics AAPC, Pleiades Astrophoto PixInsight
Filters:Astrodon L Gen.2 E-series 36mm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30
Resolution: 2283x1738
Dates:March 8, 2019, March 10, 2019, March 12, 2019, March 29, 2019
Frames:
Astrodon B Gen.2 E-series 36mm: 77x180" (gain: 75.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 74x180" (gain: 75.00) -20C bin 1x1
Astrodon L Gen.2 E-series 36mm: 257x180" (gain: 75.00) -20C bin 1x1
Astrodon R Gen.2 E-series 36mm: 76x180" (gain: 75.00) -20C bin 1x1
Integration: 24.2 hours
Avg. Moon age: 8.49 days
Avg. Moon phase: 20.99%
Astrometry.net job: 2621366
RA center: 189.082 degrees
DEC center: 25.992 degrees
Pixel scale: 1.006 arcsec/pixel
Orientation: 89.576 degrees
Field radius: 0.401 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
Reprocessed the image as to not have black blotches and posterization in the low signal areas. Details below are copied from my original post:
The Orion Molecular Cloud Complex presented in SHO
My Winter project shows the Sulfur, Hydrogen, and Oxygen emissions in and around the Orion constellation in a very widefield view. In this false-color modified "Hubble-pallet" I show the Sulfur and Hydrogen emissions as the warm red-orange colors and the Oxygen emissions as Blue. As a bonus, towards the bottom of the image you can see the Rosette and Cone Nebula pair in the constellation Monoceros.
In the Winter months, Even in the brightest cities, you can make out the large rectangle constellation of Orion with the 3 belt stars down the middle. In my image you can see the bright red star Betelgeuse at the bottom-left of the rectangle. If you can imagine just how large the Orion constellation appears to your naked eye you can see the sky is most certainly not empty! Some of the most popular nebula reside in this constellation, try to find the Orion Nebula (M42) and The Horsehead Nebula (IC434) sitting within all the dust.
When I was thinking of a target to shoot this last Winter, I really wanted to pair a widefield lens with my astronomy camera to capture the rich Hydrogen emissions around Orion. This is not new and has been done many times, usually in the form of HaRGB (using a Hydrogen-alpha filter to enhance a natural color image). A thought came to my mind that what if we were much further away from Barnard's Loop (the smile-shaped nebula) and were imaging it in narrowband. When imaging in narrowband, most nebula have strong Ha signal, moderate Sii signal, and faint diffuse Oiii signal. This combination creates those rainbow-esque images you often see from the Hubble scope. So where there is strong Ha signal, Sii typically follows, and I was puzzled why I could not find any examples of a wide narrowband view of Barnard's Loop. So after capturing plenty of Ha data I tried for some Sii exposures and to my surprise the signal was quite strong and showing up in a single exposure! So from that exposure I committed to going full SHO on Orion.
Now here is where it gets interesting (or maybe not). Oiii emissions were expected around M42, The Horsehead, and Rosette Nebula, were a pleasant surprise on the "head" of Orion (SH2-264), but completely unexpected as a large-scale diffuse signal around Barnard's Loop. With a discerning eye you can see in the individual Oiii channel a very diffuse background glow extending around and below Barnard's Loop. I know from my data that it was signal well above the noise floor, but I cannot say for certain that it is in fact diffuse Oxygen emissions until someone else goes after this widefield view with the same results.
For individual channel views refer to the revisions on Astrobin (astrob.in/405837/0/)
Equipment:
Lens: Rokinon 24mm f/1.4 (stopped to f/4)
Mount: Orion Sirius EQ-G (HEQ-5)
No autoguiding used
Imaging camera: ZWO ASI1600MM-Cool
Accessories:
QHYCCD PoleMaster
Software:
SGP
PHD2
CdC
StarNet
PixInsight
Acquisition:
Location: Atoka, OK (Bortle 3)
Dates: 1/4/19, 1/5/19, 1/27/19, 1/30/19, 2/7/19, 3/5/19
Gain: 200 Offset: 50
Camera temp: -20C
Sii: 53x600" Astrodon 3nm
Ha: 42x600" Astrodon 5nm
Oiii: 43x600" Astrodon 3nm
Total integration time: 23hr
64x darks per calibration (master from library)
30x flats per calibration
200x bias per calibration (master from library)
Messier 7 - Aglomerado de Ptolomeu
TS 115/800
ZWO ASI 100 MONO COOLED
LRGB - 66 minutos
L: 30 minutos (subs 3 minutos)
R: 16 minutos (subs 2 minutos)
G: 10 minutos (subs 2 minutos)
B: 10 minutos (subs 2 minutos)
PixInsight + PS6
2400mm/F8 telescope
Pentax 645z (astro-modified)
total exposure time = 4.6 hr (3.3 hr with no filter, 1.3 hr with H-alpha narrow-band filter)
see www.astrobin.com/h3u08h/?utm_source=astrobin&&... for more technical details.
------------------------------------------------------
• Sky-Watcher Quattro 250P
• Sky-Watcher EQ8-R Pro
• ZWO ASI294MM-Pro
• Astronomik L: 117x300s bin1 gain 0
• Astronomik RGB: 83x300s bin2 gain 125
(total integration 16.6h)
• ZWO OAG & ASI290Mini guide cam
• TS GPU coma corrector
• ZWO EFW, ZWO EAF & Pegasus Astro Ultimate Powerbox 2
Trevinca, Valding, Spain
Bortle 3, SQM 21.8
processed with Pixinsight
This image is the composition of frames recorded by a Planewave 17" + SBIG STL-11000M, itelescope, Nerpio.
L: 12x300s
RGB: (1, 1, 1)x120s binning 2 + (3, 3, 3)x300s binning 1
Data: Colombari/Coverta
Processing: Colombari
_________________________________________
NGC 457 (also known as the Owl Cluster, the ET Cluster, or Caldwell 13) is an open star cluster in the constellation Cassiopeia. It was discovered by William Herschel in 1787,[2] and lies over 7,900 light years away from the Sun. It has an estimated age of 21 million years.[1] The cluster is sometimes referred by amateur astronomers as the Owl Cluster, Kachina Doll Cluster,[2] the ET Cluster (due to its resemblance to the movie character) or the "Skiing Cluster". Two bright stars, magnitude 5 Phi-1 Cassiopeiae and magnitude 7 Phi-2 Cassiopeiae can be imagined as eyes. The cluster features a rich field of about 150 stars of magnitudes 12-15.[2]
Source: Wikipedia
Technical card
Imaging telescope or lens: Teleskop Service TS Photoline 107mm f/6.5 Super-Apo
Imaging camera: ZWO ASI1600MM-Cool
Mount: Skywatcher AZ EQ-6 GT
Guiding telescope or lens: Celestron OAG Deluxe
Guiding camera: QHYCCD QHY5III174
Focal reducer: Riccardi Reducer/Flattener 0.75x
Software: Main Sequence Software Seqence Generator Pro, Pleiades Astrophoto PixInsight
Filter: Baader Planetarium Ha 1.25" 7nm
Accessory: ZWO EFW
Resolution: 4596x3424
Dates: July 23, 2017
Frames: Baader Planetarium Ha 1.25" 7nm: 39x120" (gain: 200.00) -20C bin 1x1
Integration: 1.3 hours
Avg. Moon age: 29.06 days
Avg. Moon phase: 0.25%
Astrometry.net job: 1665080
RA center: 306.212 degrees
DEC center: 42.477 degrees
Pixel scale: 1.468 arcsec/pixel
Orientation: 90.541 degrees
Field radius: 1.169 degrees
Locations: Berga Resort, Berga, Barcelona, Spain
Fujifilm GFX-50R and GF 250mm/F4 @ F4
Nikon D800 and 250mm/F5 telescope
4-frame mosaic for the GFX and 8-frame mosaic for D800
total exposure time = 21.3 hr
For more technical details, see www.astrobin.com/o6z7nj/
Two panel mosaic from Barnard's Loop to the Great Orion Nebula
Cam: Canon EOS 6Da
Scope: Sky-Watcher Esprit ED80 Triplet Apo
Astromount: Sky-Watcher HEQ5 Pro
Autoguider: Lacerta M-GEN plus Finderscope 9x50
My Astrobin My 500px My Facebook
© Claus Steindl
This is a narrow 2 panels mosaic from DSW with a Takahashi FSQ106EDXIII and QSI683.
S: 16x1800s + 17x1800s
H: 16x1800s + 18x1800s
O: 18x1800s + 16x1800s
Copyright: R. Colombari
____________________________
Messier 52 (also known as M 52 or NGC 7654) is an open cluster in the Cassiopeia constellation. It was discovered by Charles Messier in 1774. M52 can be seen from Earth with binoculars.
Due to interstellar absorption of light, the distance to M 52 is uncertain, with estimates ranging between 3,000 and 7,000 light years. One study identified 193 probable members of the cluster, with the brightest member being magnitude 11.[1]
NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region[1] emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7[1] magnitude young central star, the 15 ± 5 M☉[4] SAO 20575 (BD+60 2522).[7] The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.[7] It was discovered in 1787 by William Herschel.[5] The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.
Source: Wikipedia
Two panel mosaic of the dusty region between the Pleiades and the California Nebula.
Cam: Canon EOS 6Da
Lens: Walimex Pro 135mm f/2.0
Astromount: Sky-Watcher HEQ5 Pro
Autoguider: Lacerta M-GEN plus Finderscope 9x50
Processing: PixInsight, PS
More details: www.astrobin.com/319742/?nc=user
My Astrobin My 500px My Facebook My Instagram
© Claus Steindl
Rising Scorpion and Milky Way Core behind Ötscher mountain in the Lower Austrian Alps.
There are a number of features in the sky you can observe in this shot:
> in the Milky Way by hydrogen glowing Lagoon, Trifid, Omega and Eagle Nebula.
> the Scorpion head / Rho Ophiuchi region with the yellow reflexion nebula around Antares, the star cluster M4 and above upside down the Blue Horsehead.
Canon EOS 6Da | Sigma 24mm 1.4 Art | iOptron SkyTracker v2
Sky: 5x 240 | ISO1600 | f/4.0
Foreground: 5x 240sec | ISO1600 | f/4.0
Fitswork | PixInsight | PS
My Astrobin My 500px My Facebook
© Claus Steindl
The Crescent Nebula is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792.
I've been imaging the Crescent Nebula area over the last week when I got clear nights. I managed to get 5 nights with an average of 4+ hours each night, for an integration time over 20 hours. This is by far the longest integration time I've ever acquired. I wanted to experiment with longer integration times with an OSC camera (ASI2600MC Pro).
I used the FLT132 with the FLAT8 reducer (0.72x) to get a slightly wider field of view; it just about includes the Soap Bubble at the top left(ish) corner. I also used a combination of narrowband filters (Optolong L-Ultimate 3nm Ha & Oiii, IDAS NBZ and Antlia ALP-T 5nm Ha & Oiii) as well as a more broadband filter, Antlia Triband RGB Ultra. I think the combination of all the filters provides a more balanced set of colours, including a decent amount of Oiii detail in the Crescent Nebula.
Processed in PixInsight and Affinity Photo 2.
More acquisition details in Astrobin: astrob.in/08co9c/0/
Thanks for looking!
CS
Eduardo
The Lobster Claw Nebula is an emission nebula located around 11,000 light-years from Earth in the constellation of Cassiopeia. The deep red and yellow regions are formed of Hydrogen Alpha with the blue regions being composed of double ionised oxygen. It’s located very close to NGC 7635 or Sh2 162 the Bubble Nebula, an image I recently posted.
4 good nights in a row at the complex in Los Coloraos, Spain for this little gem.
I decided to have a little creative fun with colour mapping the L-Ultimate narrow band filter. Most of the processing was done in PixInsight including the calibration, stacking, combining, deconvolution etc before send over to Photoshop for some palette mixing and recombining of the stars.
Perhaps not to everyone’s taste, but I loved the way it turned out which I guess in the end is why we do this hobby.
A high resolution image with imaging details can be found on my Astrobin page at: astrob.in/4p9lk5/0/
Technical summary:
Captured: 4 Nights in August 2024
Location: Turismo Astronómico, Los Coloraos, Gorafe, Spain
Bortle Class: 3
Total Integration: 26 hours 30 mins
Filter: Optolong L-Ultimate
Astrobin Top Pick
A planetary nebula in the constellation of Bootes. It was discovered in 1995 by George Jacoby. It's allegedly one of the faintest planetary nebulae This really was a challenge but eventually I managed to drag out of it some structural detail. But then I did have to capture over 42 hours of OIII at bin 3x3! Not for the faint hearted!
finally i've taken this image with the big "old-new" mount, a Losmandy G11 "upgraded" with HQ Motors and StarGo controller from the italian Avalon.
I wasn't so lucky in this 2018, so this result is very important for me, is good for morals and especially because and given the weight of the mount (difficult for me as astro-traveler) and given the unfortunate weather on the weekends i finally took a good chance to shoot in a beautiful night (SQM ~ 21.15) , hurray! :)
it's about 4 hours of total integration time, with LRGB (200/300 sec each) and H-alpha 7nm baader (500sec)
The TOA is an RC8 reduced and corrected with 0.67x (~1200mm F.L.)
Guiding with lacerta mgen, processing with PixInsight and PS
astrobin: www.astrobin.com/384870/
The Triangulum Galaxy is a spiral galaxy approximately 3 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598, and is sometimes informally referred to as the Pinwheel Galaxy, a nickname it shares with Messier 101. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Milky Way and the Andromeda Galaxy. It is one of the most distant permanent objects that can be viewed with the naked eye.
The galaxy is the smallest spiral galaxy in the Local Group and it is believed to be a satellite of the Andromeda Galaxy due to their interactions, velocities and proximity to one another in the night sky. It also has an H-II nucleus.
...more @ en.wikipedia.org/wiki/Triangulum_Galaxy
Distance from Earth: 965 Light years.
NGC 1333 is a reflection nebula located in the northern constellation Perseus, positioned next to the southern constellation border with Taurus and Aries. It was first discovered by German astronomer Eduard Schönfeld in 1855.
Within the nebula are 20 young stellar objects producing outflows, including Herbig–Haro objects (in bright red), and a total of 95 X-ray sources that are associated with known members of embedded star clusters. [Wikipedia]
21 hours of imaging taken over 5 nights in February 2024 from the Complejo Astronómico Los Coloraos in Gorafe, Spain using my C11 f/7 Edge HD telescope with RGB filters.
Imaged with NINA, processed with PixInsight and Adobe Lightroom Classic.
For all the technical details and a full resolution image please visit my Astrobin page at: astrob.in/1lrjg2/0/
Thank you for looking!
This is one of the most photographed galaxies, so I'm just adding my own image of this beautiful spiral galaxy to the mix. I captured this image with my William Optics FLT132 w/ FLAT8 0.72x reducer, so this image is a crop of the original wider field image.
Integration time was 4 hours over two nights, using a ZWO ASI2600MC Pro with Antlia Triband RGB Ultra 2" filter.
More information and wide field image in Astrobin: astrob.in/ez9s8t/C/
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Information about M51:
"Discovered by Charles Messier in 1773, M51 is located 31 million light-years from Earth in the constellation Canes Venatici. The Whirlpool's most striking feature is its two curving arms, a hallmark of so-called grand-design spiral galaxies. These arms serve an important purpose in spiral galaxies. They are star-formation factories, compressing hydrogen gas and creating clusters of new stars.
Some astronomers believe that the Whirlpool's arms are so prominent because of the effects of a close encounter with NGC 5195, the small, yellowish galaxy at the outermost tip of one of the Whirlpool's arms. At first glance, the compact galaxy appears to be tugging on the arm. However, a very detailed image taken by the Hubble telescope shows that NGC 5195 is passing behind the Whirlpool. The small galaxy has been gliding past the Whirlpool for hundreds of millions of years. See NASA's website for more information: science.nasa.gov/mission/hubble/science/explore-the-night...
"
Nebulosa da Cabeça de Cavalo. Nas próximas oportunidades, tentarei fazer mais frames para obter melhores registros finais. Enquanto não chegam as novas correias (maiores) que encomendei, adaptei uma correia da minha montagem anterior em um dos eixos. Houve relevante melhora no funcionamento. Vou tentar adaptar uma dessas correias também no outro eixo para testes até chegarem as novas.
Refletor Sky-Watcher 200mm F/5 EQ5, Canon T6 (Foco Primário) não modificada. Processamento: DeepSkyStacker, PhotoScape e PS Express. Guiagem via Onstep, utilizando Guidescope 50mm e ASI 120MC-S.
Nebulosa da Chama e Cabeça de Cavalo: 10 light frames (08x120s + 01x300s + 01x30s, totalizando 21 minutos e 30 segundos de exposição), 10 dark frames, 10 bias frames. ISO 800.
I wanted to get this one finished before xmas... but clouds had other ideas... anyhow I finally managed to finish this image!
Description:
NGC 2264 is a star-forming region located in the constellation Monoceros. It is also known as the Cone Nebula due to its shape, which is formed by a dark, cone-shaped dust cloud that appears to be pointing towards a bright cluster of stars known as the Christmas Tree Cluster. The Cone Nebula is a popular target for astronomical observation due to its striking shape and the bright young stars that can be found within it. The Christmas Tree Cluster, officially named NGC 2264, is an open cluster of stars located within the Cone Nebula. It is so named because it appears to resemble a Christmas tree with the bright stars of the cluster forming the shape of a tree and the dark nebula resembling the trunk and branches.
More details and Hi Res on Astrobin: www.astrobin.com/0cdiiu/
🔭: Askar 107 PHQ
📷: ASI 1600mm Pro
Mount: Skywatcher EQ6-R
️: -10
⚫️: Antlia Ha 3nm 50x 600s
⚫️: Antlia Oiii 3nm 37x 600s
⚫️: Antlia Oiii 3nm 28x 600s
🔴: Antlia Pro Red 25 x 45s
: Antlia Pro Green 25 x 45s
🔵: Antlia Pro Blue 25 x 45s
Total integration: 20h 6′ 15″
The North America Nebula NGC7000 in bi-color captured earlier this year using the QHY367 Pro C full frame one shot color 36 Megapixel CMOS camera mounted on the Takahashi 130 FSQ.
Often ignored in images of The North America Nebula is the immense patch of shadows, the dark nebula LDN 935 appearing prominently (left of center) with the Cygnus Wall (at bottom left) and The Pelican Nebula IC 5070 (at center). The dust from this dark nebula obscures the emission nebula to form the region known as The Gulf of Mexico. This detailed image surely visualizes the nature of dust and gas clouds that populate the universe.
In this Narrowband version (HOO) the H-Alpha is mapped to red OIII is mapped to the blue channel and blended to the green channel, with RGB data used for the natural star color.
Captured over 5 nights in May and June 2020 for a total acquisition time of 16.5 hours.
The data used in this image is available from Grand Mesa Observatory Subscriptions, System 1.
View High Resolution
Astrobin: www.astrobin.com/j2ljjs/
Technical Details
Captured and processed by: Terry Hancock
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
Dates of Capture May 21, 29, June 10, 12, 15 2020
RGB 290 min 29 x 600 sec
HA 495 min 33 x 900 sec
OIII 210 min 14 x 900 sec
Narrowband Filters by Chroma (5nm)
Camera: QHY367 ProC full frame one shot color CMOS
Filter Wheel: QHYCFW3 Large
Gain 2850, Offset 76
Calibrated with dark, Bias and Flat Frames
Optics: Walter Holloway's Takahashi FSQ 130 APO Refractor @ F5
Image Scale: 1.56 arcsec/pix
Field of View: 3d 7' 41.0" x 2d 3' 5.3 (127.3 x 190.1 arcmin)
EQ Mount: Paramount ME
Image Acquisition software Maxim DL6 Pre Processing in Pixinsight Post Processed in Photoshop CC and Starnet.
On website with details and technical data: www.astropixel.it/ngc-6888-the-crescent-nebula/
On Astrobin: www.astrobin.com/196798/
Automated by Voyager software.starkeeper.it
Iris Nebula is dramatic reflection nebula in the constellation Cepheus.
With plenty of dark interstellar dust is illuminated by a central hot star named SAO 19158 which is 10 times the mass of our sun.
It lies 1,300 light-years away and is six light-years across.
It was integrated only 15 hours, 50% best frames of the total valid frames taken between May and June of 2019.
PD: I am glad to check my improvements when I compare to this other capture from three years ago. :D
Technical card
Imaging telescope or lens:Altair Astro RC250-TT 10" RC Truss Tube
Imaging camera:ZWO ASI1600MM-Cool
Mount:Astro-Physics Mach-1 GTO CP4
Guiding telescope or lens:Celestron OAG Deluxe
Guiding camera:QHYCCD QHY5III174
Focal reducer:Riccardi Reducer/Flattener 0.75x
Software:Main Sequence Software Seqence Generator Pro, Astro-Physics AAPC, Pleiades Astrophoto PixInsight
Filters:Astrodon L Gen.2 E-series 36mm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30
Resolution: 2318x1665
Dates:June 1, 2019
Frames:
Astrodon B Gen.2 E-series 36mm: 41x180" (gain: 75.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 40x180" (gain: 75.00) -20C bin 1x1
Astrodon L Gen.2 E-series 36mm: 177x180" (gain: 75.00) -20C bin 1x1
Astrodon R Gen.2 E-series 36mm: 42x180" (gain: 75.00) -20C bin 1x1
Integration: 15.0 hours
Avg. Moon age: 27.55 days
Avg. Moon phase: 4.36%
Astrometry.net job: 2777189
RA center: 315.429 degrees
DEC center: 68.162 degrees
Pixel scale: 1.007 arcsec/pixel
Orientation: 270.122 degrees
Field radius: 0.399 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
Astrobin Top Pick
NGC 7008 is a planetary nebula in the constellation Cygnus at a distance of 2800 light years.
Image captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 Refractors
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS
H-Alpha 13x900"
Blue 16x300"
Green 20x300"
Lum 20x300"
OIII 16x1800" + 11x900"
Total integration: 20.3 hours
M8 The Lagoon Nebula
M8 in Narrowband with RGB stars
This was probably one of the first nebula I captured using my DSLR when I started astrophotography a couple years ago. I'm glad to see this target back in our southern skies this season. I only got a mono camera since January this year and this Nebula does not disappoint. Similar to Orion it can be quite tricky to processed as the luminosity in the core of the nebula is quite intense compared to the rest of the nebula. Great target to practice narrowband imaging as Ha, Sii and Oiii signal are quite strong.
The Lagoon Nebula was discovered in 1654 by astronomer Giovanni Battista Hodierna.
This star forming cloud of gas in located in the constellation of Sagittarius and is visible to the naked eye in dark skies.
M8 is home to a star cluster NGC 6530 which ionise the oxygen at the centre of the nebula.
It is located approximately 5200 light years from earth. In Australia we like to nickname this object "mate" due to its Messier number M8 ;)
Astrobin: www.astrobin.com/wtzs85
Imaging Telescopes:
William Optics Zenithstar 73
Imaging Camera:
ZWO ASI 1600MM-Pro
Mount:
Skywatcher EQ-6r Pro
Software:
Nina, PHD2, Photoshop, Pixinsight, StarXterminator, NoiseXterminator
Frames:
Antlia Pro 3nm Ha: 28x600" (4h 40') (gain: 139.00) f/5.9 -10°C bin 1x1
Antlia Pro Oiii 3nm: 28x600" (4h 40') (gain: 139.00) f/5.9 -10°C bin 1x1
Antlia Pro 3nm Sii: 28x600" (4h 40') (gain: 139.00) f/5.9 -10°C bin 1x1
Antlia Pro Blue: 45x15" (11' 15") (gain: 76.00) f/5.9 -10°C bin 1x1
Antlia Pro Green: 45x15" (11' 15") (gain: 76.00) f/5.9 -10°C bin 1x1
Antlia Pro Red: 45x12" (11' 15") (gain: 76.00) f/5.9 -10°C bin 1x1
Integration:
14h 33’ 45”
The Pinwheel Galaxy is a face-on spiral galaxy distanced 21 million light-years away from Earth in the constellation Ursa Major. It was discovered by Pierre Méchain on March 27, 1781, and was communicated to Charles Messier, who verified its position for inclusion in the Messier Catalogue as one of its final entries
Photo By Doug.,N. Jiang
Post Processing By Fluorine Z.
原帖地址：https://www.astrobin.com/397852/
Image Telescope/Lens : Officina Stellare RH-200 MKII
Image Camera : QHYCCD QHY814A
Mount : Astro-Physics 1100GTO CP4
Frames :
Ha : 69x300" bin 1x1
L : 192x120" bin 1x1
L : 64x300" bin 1x1
L : 10x600" bin 1x1
R : 59x300" bin 1x1
G : 102x300" bin 1x1
B : 32x300" bin 1x1
Astrobin Top Pick
Awarded Picture of the Day by the Gruppo Astrofili Galileo Galilei (GrAG) apod.grag.org/2020/08/24/ngc-6826-the-blinking-planetary/
NGC 6826 is known as The Blinking Planetary. This stems from the faintness of the outer shell which is only visible when using averted vision. It is also known as Caldwell 15. With this image I wanted to tease out the structure of the shell, by combining both Ha and OIII data. The OIII signal is the stronger of the two, hence the resulting teal colour.
Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 Refractors
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS
Ha 15x1800"
OIII 178x20, 20x1800, 120x30, 12x600
Blue 9x300"
Green 16x300"
Lum 20x300"
Red 20x300"
Total Integration: 37.3 hours
Astrobin Top Pick
StDr 1 - a possible planetary nebula in the constellation of Taurus, discovered by Xavier Strottner and Marcel Drechsler in November 2019. This is the first time it has been imaged in colour. It is extremely faint - and so 1800 second exposures binned 3x3 were necessary.
Astrodon Blue: 17x300"
Astrodon Green: 18x300"
Astrodon Red: 18x300"
Astrodon Lum: 21x300"
Astrodon OIII: 8x1800s bin 3x3
Astrodon Ha: 19x1800s bin 3x3
Total Integration: 20 hours
Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length)
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS
Description
First light of my new mount Mesu 200 mk2 !!
Really happy when I compare with the same picture last year, under different skies and diferent mount....
NGC 6820 is a small reflection nebula near the open cluster NGC 6823 in Vulpecula. The reflection nebula and cluster are embedded in a large faint emission nebula called Sh 2-86. The whole area of nebulosity is often referred to as NGC 6820.
Open star cluster NGC 6823 is about 50 light years across and lies about 6000 light years away. The center of the cluster formed about two million years ago and is dominated in brightness by a host of bright young blue stars. Outer parts of the cluster contain even younger stars. It forms the core of the Vulpecula OB1 stellar association. (Description credits: Wikipedia)
Technical card
Imaging telescope or lens:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo
Imaging camera:ZWO ASI1600MM-Cool
Mount:Mesu 200 Mk2
Guiding telescope or lens:Celestron OAG Deluxe
Guiding camera:ZWO ASI174 Mini
Focal reducer:Riccardi Reducer/Flattener 0.75x
Software:Main Sequence Software Seqence Generator Pro, Pleiades Astrophoto PixInsight
Filters:Astrodon HA 36mm - 5nm, Astrodon S-II 36mm - 5nm, Astrodon O-III 36mm - 5nm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30
Resolution: 3798x3154
Dates:July 28, 2019, July 29, 2019
Frames:
Astrodon HA 36mm - 5nm: 147x300" (gain: 200.00) -20C bin 1x1
Astrodon O-III 36mm - 5nm: 30x300" (gain: 200.00) -20C bin 1x1
Astrodon S-II 36mm - 5nm: 30x300" (gain: 200.00) -20C bin 1x1
Integration: 17.2 hours
Avg. Moon age: 26.05 days
Avg. Moon phase: 13.32%
Astrometry.net job: 2851183
RA center: 295.762 degrees
DEC center: 23.293 degrees
Pixel scale: 1.465 arcsec/pixel
Orientation: 90.757 degrees
Field radius: 1.004 degrees
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus hence its alternate name The Cygnus Loop.
Formation of the nebula was due to a large star 20 times the size of our sun exploding between 10 and 20 thousand years ago as it went Super Nova. The explosion would have been so bright it would have been brighter than Venus and possibly visible in the daytime. The current area of the Super Nova Remnant is almost 3 degrees in diameter which is 6 times that of the Moon.
Many astrophotographers focus on 3 areas known as the Eastern Veil Nebula, The Western Veil Nebula (or Witched Broom) and Pickering Triangle.
The full image is a mosaic of 4 panels taken over 12 nights and a combined imaging time of 39.5 hours. It is a huge image by my standards and can be viewed in full resolution on my Astrobin page by following the links below.
Full Mosaic: astrob.in/9qtk5q/0/
Eastern Veil: astrob.in/c9lhp7/0/
Western Veil: astrob.in/jped5t/0/
Pickering’s Triangle: astrob.in/v45w06/0/
Thank you for looking.
Technical summary:
Captured: 12 Nights in June and July 2024
Location: Turismo Astronómico, Los Coloraos, Gorafe, Spain
Bortle Class: 3
Total Integration: 39h 30m
Filters: Optolong L-Ultimate Narrowband
Pixel Scale: 1.4 arcsec/pixel
Telescope: Skywatcher Esprit 100ED
Image Camera: ZWO ASI2600MC Pro
Mount: Skywatcher EQ 6R Pro
Capture software: NINA, PHD2
Editing software: PixInsight, Adobe Lightroom
Featured on the Astronomy Now Magazine website astronomynow.com/2020/06/19/venus-about-to-be-swallowed-u...
Awarded Astronomical Photo of The Day apod.grag.org/2020/06/22/moon-venus-occultation/
Awarded Astrobin Image Of The Day 30 June 2020 astrob.in/jva239/0/
Awarded Amateur Astronomy Picture Of The Day 3 July 2020 www.aapod2.com/blog/moon-occulting-venus
At 09:18 CET this morning the planet Venus was about to pass behind the Moon. Imaging this by daylight was a bit of a challenge, especially as the sun was nearby, but using a short exposure (1/100th second) and a red filter managed to capture the moment just before Venus disappeared. Image captured using my robotic telescope in Spain.
Astrobin Image Of The Day 9th January 2020
Amateur Astronomy Image Of The Day 25th January 2020 AAPOD2
Published in Universo Magico 27 March 2020
EGB 4 (a nebula discovered by Ellis, Grayson, & Bond in 1984) is NOT a comet, despite it's comet-like appearance. It is an emission nebula surrounding a catacylismic binary star system called BZ Cam in the constellation of Camelopardis.
It has an unusual bow-shock structure as BZ Cam (with it's associated wind) moves through the interstellar medium, similar to the bow wave in front of a ship that is moving through water.
BZ Cam is believed to be a white dwarf star that is accreting mass from an accompanying main-sequence star of 0.3-0.4 solar masses.
It is around 2,500 light years away, and has a space velocity of 125 km/second.
I can only find one previous image of EGB 4 online, a NASA APOD from 2000, so I believe this could be the first amateur image and the first colour image.
Astrodon Blue: 15x300"
Astrodon Green: 15x300"
Astrodon Lum: 20x600"
Astrodon Red: 15x300"
Astrodon OIII: 25x1800s bin 2x2
Astrodon Ha: 56x1800s bin 2x2
Total Integration: 48 hours
Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length)
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS
References:
apod.nasa.gov/apod/ap001128.html
THE ASTRONOMICAL JOURNAL, 115:286-295, 1998 January © 1998. The American Astronomical Society.
aanda.org/articles/aa/full/2001/36/aa1385/aa1385.right.html
Galáxia Centaurus A
Imagem feita no XI Encontro Brasileiro de Astrofotografia.
39 frames de 300 segs em ISO 800
Exposição total de 3h15min
Equipamento Utilizado:
Telescópio Newtoniano Skywatcher 150/750
Montagem Celestron Advanced CG5 GT
Câmera Sony NEX-5N Mod Baader BCF
Coma corrector GSO 1.1x
Mais em:
www.instagram.com/samuelmullerbr
420mm/F3.9 telescope
Nikon D800 (astro-modified)
Total exposure time: 4.6 hr
see www.astrobin.com/1ogh38/C/ for more technical details.
3454mm/F6.8 astronomical telescope
Moravian C5A-100M cooled CMOS camera
total exposure time = 5.8 hr
see www.astrobin.com/iku3wi/ for more technical details.