View allAll Photos Tagged Subframing
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Photographed from mid-town Toronto, Canada, at 21.36 EDT (Moon altitude: 35° | Sun 35° below the horizon)
* Temperature 10° C.
When I made the subframes that have been assembled for this image, the Moon was still 39 hours (a little more than a day and a half) from reaching its full phase. As a result, you can see the terminator (the dividing line between the sunlit and dark portions of the lunar disk) along the left edge, with craters and mountains in sharp profile from the low angle of the Sun.
Last night the Moon appeared distinctly yellowish in colour, probably caused by dust particles in the atmosphere. I have tried to neutralize the yellow during processing of the image, but the slight yellow cast is still evident.
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Nikon D850 camera body on Explore Scientific 152 mm (6") apochromatic refracting telescope, mounted on Sky-Watcher AZ-EQ6 SynScan mount.
Best ten of ten sixteen identical stacked frames; each frame:
* 1253 mm focal length
* ISO 100, 1/200 sec. exposure, f/8
Stacked in Registax
Processed in Photoshop CS6
(brightness, contrast, colour desaturation, colour balance)
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Taken around 4pm on the first day of March, this is a four-panel mosaic using a colour CMOS camera. Each panel of the mosaic is a stack of the best 40% of 800 subframes.
Peter
Equipment:
ZWO ASI071 MC Pro CMOS camera, 356mm f/10 LX200 SCT, EQ8 mount.
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Photographed at Algonquin Provincial Park, Ontario, Canada
(285 km by road north of Toronto) from 00.57 - 01.18 EDT
* Temperature 11 degrees C.
* Total exposure time: 10 minutes.
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Description:
Our home galaxy, the Milky Way, spans the Canadian sky high overhead in the northern hemisphere summer. Dense clouds of stars are obscured in places by winding lanes of dark foreground gas. Many glowing red clouds of hydrogen gas are revealed in long exposure photographs.
The gossamer glow of the Milky Way, which most people never get to see in their lifetimes because of the light pollution thrown into the sky by modern cities, is a thrilling and awe-inspiring sight. But you need to get an hour or more out of the city to be treated to a dark enough sky that will reveal our glorious galaxy.
One of the most distinctive gas clouds is the aptly named "North America Nebula", to the left of centre. For a close-up view of this nebula made with a 400 mm lens, click here:
www.flickr.com/photos/97587627@N06/19933485213
For a version of this photo WITH LABELS, click on your screen to the RIGHT of the photo, or click here:
www.flickr.com/photos/97587627@N06/27868577990
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Technical information:
Sigma 35 mm f/1.4 DG HSM ART lens on Nikon D810a camera body, mounted on Astrophysics 1100GTO equatorial mount with a Kirk Enterprises ball head
Ten stacked frames; each frame:
35 mm focal length
ISO 3200; 1 minute exposure at f/4; unguided
(with LENR - long exposure noise reduction)
Subframes registered in RegiStar;
Stacked and processed in Photoshop CS6 (brightness, contrast, levels, colour balance, colour desaturation)
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Messier 44 - The Beehive Cluster (or also called the Praesepe) is a open cluster that lies in the constellation Cancer, the location of this open cluster also creates a great many photo opportunities as it is located close to the ecliptic (the line that planets, the sun and moon follow across the sky) thus creating many different conjunctions.
Learn more here: www.leisurelyscientist.com/?p=1573
This wide-field image was taken on February 28, 2016 using my Canon 6D, Canon EF 400mm f/5.6L USM and an iOptron ZEQ25 mount. Total exposure time was 30 minutes using 60-second subframes @ ISO 3200, the lens was set at f/6.3 adding some light star spikes to the image. The image was stacked using DeepSkyStacker, stretched with ImagesPlus and edited in Corel PaintShop Pro X5 and Adobe Lightroom.
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Photographed at Algonquin Provincial Park, Ontario, Canada
(285 km by road north of Toronto)
between 01.44 and 02.01 EDT
* Altitude of centre of frame at time of exposures: 37°
* Temperature 16° C.
* Total exposure time: 8 minutes
* 660 mm focal length telescope
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Description:
In this area of the northern Milky Way, numerous foreground clouds of cold dark gas obscure the light of tens of thousand of stars beyond. Several of these gas clouds are readily apprarent in this image.
For a version of this photo WITH LABELS, click on your screen to the RIGHT of the photo, or click here:
www.flickr.com/photos/97587627@N06/50133527182
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Technical information:
Nikon D810a camera body on Tele Vue 127is (127 mm - 5" - diameter) apochromatic astrograph, mounted on Astrophysics 1100GTO equatorial mount
Eight stacked frames; each frame:
660 mm focal length
ISO 5000; 1 minute exposure at f/5.2; unguided
With long exposure noise reduction
Subframes stacked in RegiStar;
Processed in Photoshop CS6 (highlights / shadows, levels, brightness / contrast, colour balance)
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Also starring NGC43346, NGC4248, NGC4232, NGC4231, NGC4226, NGC4217, and NGC4220.
I'm convinced that the secret to getting good images out of smartscopes (or any other kind for that matter) is to gather as much light over as long a period of time as you can. In this case I've got just a bit under 4 hours once I deleted subframes with commercial satellites, spy satellites, commercial aircraft, extraterrestrial craft of unknown origin, passing clouds and the tops of trees. But I plan to go back tonight and collect more data.
The second secret is learning to post process the data with new software. I use Siril, a fantastic free application that evolves leaps and bounds on a weekly basis. Developers are creating new plugins and scripts that automate nearly all tasks so the learning curve is not in the least steep.
Dwarf 3 - 317 subframes most of which are 45 seconds long. A few experimental one minute exposures are in the mix as well.
The Lotus Elise was based around a groundbreaking bonded aluminium tub that weighed only 68kg, but which was incredibly rigid. Only the roll bar, rear subframe and suspension mounts were made from steel.
Launched at the 1995 Frankfurt Motor Show, the Elise was named after the granddaughter of the then Lotus chairman.
This 1998 Series 1 Lotus Elise, S238 LRA, was seen at the Classic Motor Hub.
Canon 135 f/2 (stopped down to 2.8) lens attached to SX Trius 694 + Baader 7nm Ha filter piggybacked to main scope on a CEM60 was used to capture eleven subframes at 300 seconds each. Stacked in Deepskystacker and processed in StarTools and Photoshop CS2
Taken 07/01/22
Celestron C8 SCT with Starizona Hyperstar F/1.9 ZWO ASI 294MC Pro, Optolong L-eXtreme filter, ASIAir tracking and capturing on SW EQ6-R Pro
8 hours and 14 minutes total integration,
247 x 120sec subframes
ASI294MC Pro gain 120
Preprocessed in SIRIL and processed in PixInsight final tweaks in Photoshop and Topaz
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Photographed at Algonquin Provincial Park, Ontario, Canada, between 22.17 and 22.30 EDT
(285 km by road north of Toronto)
* Temperature 12° C.
* Total exposure time: 6 minutes.
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Description:
One of the brightest sections in our home galaxy, the Milky Way, is in the small constellation Scutum (the Shield), which appears in the southern sky half way from the horizon to the zenith as seen from southern Canada and the northern United States.
In this area appear many foreground cold, dark nebulae, which obscure the light of the stars beyond. These dark regions were photographed and catalogued by the great American astronomer E. E. Barnard (1857 - 1923) (en.wikipedia.org/wiki/Edward_Emerson_Barnard), and bear the designation "B", numbered from 1 to 370.
Below centre in this view is a favourite target of amateur astronomers with modest telescopes: M11, the "Wild Duck Cluster". This is a rich open cluster of stars that looks like a duck in flight. See en.wikipedia.org/wiki/Wild_Duck_Cluster for more information about M11.
For a wider angle view of the entire constellation and the surrounding area, click here:
www.flickr.com/photos/97587627@N06/28583103700
For a version of this photo WITH labels, click on the RIGHT side of your screen, or click here:
www.flickr.com/photos/97587627@N06/31295105435
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Technical information:
Nikon D810a camera body on Teleview 101is apochromatic refracting telescope, mounted on Astrophysics 1100GTO equatorial mount with a Kirk Enterprises ball head
Six stacked frames; each frame:
540 mm focal length
ISO 4000; 1 minute exposure at f/5.4; unguided
(with LENR - long exposure noise reduction)
Subframes registered in RegiStar;
Stacked and processed in Photoshop CS6 (levels, brightness, contrast, colour balance)
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I started exposing this image at 11:05 PM last night and finished at 2:46 AM this morning. Even though that was about 3 hours and 40 minutes there were a few dropped frames and processing time which reduced actually exposure time to 2 hours divided into 10 second subframes. Below is a screenshot depicting a step in post-processing.
My latest attempt at this fantastic object, this time a wider field captured with a Canon 400mm f5.6L lens on a QHY168C cooled CMOS camera. 283 x 180s subframes integrated in PixInsight.
Observed from Prachinburi, Thailand.
It really took a while before this model was done. Actually I wanted to present it at LEGO World 2013 but didn't manage to get it ready. It was shown at LEGO World 2014 in Copenhagen but afterwards I still had to do some minor changes.
Anyhow; the model. In July 2011 I was visiting the UK for my job and I had the opportunity to do some sightseeing. Just before heading for the UK I saw a couple of pictures of NYR's immaculate Kenworth K100E Aerodyne in "B.J. & the Bear: outfit. A couple of months before they imported one for the States and converted it into a heavy recovery vehicle by fitting a Century Rotator 1140. I took a lot of pictures at their yard (and of course I was very please it was there!). Back home I started to find more details about the K100 and Century Rotator and start building a chassis and cab.
I didn't use chrome before and had to start a collection of chrome pieces. I discovered it's rather expensive and I was hesitating whether I should continue the project or not. Mid 2011 I still had the old Scania 141 with Holmes and when I removed the cab of that one and placed the K100 cab onto the chassis I thought it might be better to start with a smaller truck with some chrome parts. And that's how I start building the K100 with Holmes twin boom; www.flickr.com/photos/51102529@N07/sets/72157631712541786/
But I had to continue with the NYR truck. The other K100 did turn out very well and the Aerodyne would be even better (red, white and black are always good to combine). So I continued early 2013. In a meanwhile Brickonwheels started to build his Pete 379 with Century Rotator 1075; www.flickr.com/photos/bricksonwheels/sets/721576345065103...
From a truck photographer I received some very useful pictures of the century rotator, even a few production pictures. He I really could see all details which enabled me to build quite an exact replica. At a heavy recovery show in Belgium in June 2013 I had a closer look to a few examples of Century Rotators which where there.
The model has a full detailed chassis with drive shafts, air suspension, axle stabilizers, etc. etc. When I was building the chassis I recon it would become long, very long. Without the body should say there wouldn't come an end to the chassis … Nice challenge to get it straight without bending. The cab is tilted with an accurate Cummins 6 cylinder in line engine underneath. This one has some chrome touches. The cab interior differs a bit from the old K100; this one is from a later generation, on of the last produced in 2003.
The body work I had to align with the cab (especially with the striping). As I wouldn't change anything to the design of it (it was perfect) I had to modify the body work quite some times. I think I rebuilt it seven of eight times. The body work consist of one center part at the front and two mirrored sections on each side. These are merged to the chassis with traverse beams. On the truck chassis there's a heavy subframe for the crane. I used a classic turn table to attach the crane base. The crane base also was quite a challenge to build; I wanted to have the shapes correctly. While there aren't any blueprints available of the rotator I really had to study all pictures I took. When building the crane I discovered the truck chassis was a bit too short; I disassembled the chassis and stretched it with three studs. It really was a lot of work but otherwise it wouldn't be right.
The boom has three stages and I chose to use panels, brackets and tiles to make these section. In reality there's a little space between the boom and crane base. The outer section is just less than six studs wide, the middle section four studs and inner section a little more than three studs. I was quite expensive to collect all these pieces but I thought it would fit better.
The truck has three winches; two on top of the crane base and one in the body work.
I spent a lot of time on detailing, like the fuel tanks, air compressor, light bar, support legs, storage cabinets etc. etc.
It's my largest solo vehicle so far, apart from the huge Liebherr cranes I built many years ago. In a time span of two and a half years I spent many hours on it. Mostly it really was fun and exciting to build but sometimes quite frustrating. Patience is the magic word!
Eagle Nebula (M16), Swan Nebula (M17), star cluster M18, Sagitarius star cloud and a lot of other structures. For me a surprising new view of Eagle Nebula: a face in a fascinating expression (left side). Mosaic captured last night (2015-08-16) in Tenerife, 1200 m altitude, 2 x 20 x 150 sec subframes, Sony A7s (CentralDs modded and cooled, ISO 4000, IDAS-V4 filter), RASA 11" F2.2, ASA DDM85 unguided, processed in PixInsight, PtGui and PS CC.
Cumulative 3 hour exposure of the Veil Nebula. Subframes were 5 minutes. Taken with Nikon D810a and a Televue NP101.
This is the Sunflower Galaxy in Canes Venatici, nicely high in our skies at the moment and living up to its nickname.
This image is a stack of 31x5minute luminance subframes with added red, green and blue data taking the total image time to just short of four hours over two recent nights.
Taken through my 130mm triplet APO refractor with an Atik 460EX mono CCD.
Peter
NASA Astronomy Picture of the Day (APOD) for December 24, 2013;
This image of SH 2-308 was taken in my backyard inTehachapi, Ca., during a cold snap (13 degrees). Details: Televue NP127is at f4.1; Atik 383L+ at -18 deg C; Orion EQ-G mount;TS OAG; Astrodon 3nm filters: Ha(G)(15x20min),SII(R)(3x20min),OIII(B)(18x20min). Because this 'dolphin' or 'gourd' is so strong in OIII, I mixed approximately 15% OIII into the red channel along with 85% SII. To obtain the final colors, I tweaked the color bandwidths and hues of this image using PSE9 [replace color] in an attempt to achieve a pleasing look. I also used AIPWIN to apply Sigmoid Brightness Scaling on each subframe before stacking.
1996 Rover 114 SLi 5-door.
Supplied by Seletar Garage of Mundford (Rover).
Last MoT test expired in July 2016.
It failed a test in September 2016 -
Offside rear subframe mounting prescribed area is excessively corroded sill (2.4.a.3)
Nearside rear subframe mounting prescribed area is excessively corroded sill (2.4.a.3)
Nearside windscreen wiper does not clear the windscreen effectively (8.2.2)
1991 Rover Metro 1.1 C 3-door.
Supplied by Mann Egerton of King's Lynn.
Last MoT test expired in March 2020 (SORN).
It failed a test that month -
Rear subframe mounting prescribed area fractured significantly reducing structural strength subframe has crack in the middle (5.3.6 (a) (i)) - Major
Rear brakes imbalanced across an axle axle 2 (1.2.1 (b) (i)) - Major
563 ten-second subframes.
I imaged the Flaming Star Nebula using two different smartscopes with dramatically different results. There were also differences in post-processing that influence the differences. The two smartscopes' cost was nearly identical. No one scope is better than the other, but each has a distinct look. See below for comparison.
This is a slightly different view of the Crab nebula. It is normally a narrowband target and scrubs up well in H Alpha. This mage is simply a colour image taken with a luminance/IR cut filter, giving a more natural view of the nebula. It is 20 individual subframes of 480 seconds each taken over two separate nights' observing in September and October.
Peter
1988 Austin Metro Vanden Plas 5-door.
Last MoT test expired in December 2007 (SORN).
It failed a test in November 2007 -
Nearside inner rear seat belt anchorage prescribed area is excessively corroded (5.2.6)
Offside inner rear seat belt anchorage prescribed area is excessively corroded (5.2.6)
Offside inner rear subframe mounting prescribed area is excessively corroded (2.4.a.3)
Nearside inner rear subframe mounting prescribed area is excessively corroded (2.4.a.3)
Offside inner rear subframe mounting prescribed area is excessively corroded (2.4.a.3)
and again in June 2020 -
Nearside rear suspension pipe damaged or deteriorated and function is seriously affected excessively corroded (5.3.5 (b) (ii)) - Dangerous
Offside rear suspension pipe damaged or deteriorated and function is seriously affected excessively corroded (5.3.5 (b) (ii)) - Dangerous
All direction indicators not working (4.4.1 (a) (ii)) - Major
Fluid leak harmful to the environment or a risk to other road users coolant leaking excessively (8.4.1 (a) (i)) - Major
Horn not working (7.7 (a) (ii)) - Major
Windscreen washer not working (3.5 (a)) - Major
Offside rear subframe mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i)) - Major
Nearside rear outer seat belt anchorage prescribed area strength or continuity significantly reduced (7.1.1 (a) (i)) - Major
Offside rear outer seat belt anchorage prescribed area strength or continuity significantly reduced (7.1.1 (a) (i)) - Major
Service brake efficiency below requirements (1.2.2 (a) (i)) - Major
Using my 150 ED apo triplet and 1000D with UHC filter I captured 4 subframes at 25 minutes apiece,stacked in Deepskystacker and processed in Photoshop,colour balanced to bring out the Hubble palette.
EQ 6 powered using EQMOD and autoguided using 60mm Tasco refractor,SX Lodestar and PHD2.
Image taken early hours of 27/12/16
1997 Jaguar XK8 4 Litre auto.
Previously registered J20 AKS, JR 7237, J853 GGP, VOT 92 and P804 UAV.
Last MoT test expired in November 2015 (SORN).
It failed a test that month -
Nearside rear subframe mounting prescribed area is excessively corroded outer sill area (2.4.a.3)
Offside rear subframe mounting prescribed area is excessively corroded outer sill area (2.4.a.3)
Nearside brake pipe excessively corroded front to rear (3.6.b.2c)
150 ED Apo triplet f7 and Atik 314L with motorised filterwheel.
8 subframes at 7 minutes apiece captured in Ha and again in OIII,stacked in Deepskystacker and colour comined (Ha,OIII,OIII) in Maxim DL4,finished in Photoshop. Image taken early hours of 1/12/16
This isn't deja vue with my last posting. That was Phase 1, this is the completion of Phase 2 in building my Rosette image this time round. The previous posting was a stack of 15 seven-minute subframes in H Alpha. This image is a stack of 36 seven-minute subframes in H Alpha and marks the completion of this narrowband capture that will form one element (albeit the most important) of the final image in due course.
Main differences with the previous image are more detail in the fainter features and a more subtle difference between the light and dark areas.
Peter
Equipment used: Atik 460EX mono CCD, 0.75 reducer, 130mm triplet APO, autoguided with a Lodestar CCD and telescope on an EQ8 mount.
Seen on Gt. Yarmouth seafront.
Frame: Steel trellis, cast aluminium rear subframe
Length: 86.6 in. (2,200 mm)
Height:
Width:
Wheelbase: 63.58 in. (1,615 mm)
Seat height: 29.72 in. (755 mm)
Dry weight: 485 lb. (220 kg)
Curb weight: 544.5 lb. (247 kg)
Front suspension: Adjustable 1.97 in. (50 mm) fork
Rear suspension: Single shock absorber
Front brake: Twin 12.6 in. (320 mm) discs, ABS
Rear brake: Single 10.43 in. (265 mm) disc, ABS
Front tyre: Pirelli Diablo Rosso II, 120/70 ZR17
Rear tyre: Pirelli Diablo Rosso II 240/45 ZR17
Fuel capacity: 3.96 gal. (18 litres)
Engine: 1,262 cc, (77 cu. in.) Ducati Testastretta DVT, L-twin, four stroke, fuel injected, liquid cooled
Engine output: 152 hp (110.9 kW) at 9,500 rpm
Gearbox: 6 speed constant mesh
Top speed: 169 mph (272 km/h)
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Photographed at Algonquin Provincial Park, Ontario, Canada
(285 km by road north of Toronto)
between 22.30 and 22.40 EDT
* Altitude of the cluster at time of exposures: 54°
* Temperature 17° C.
* Total exposure time: 4 minutes
* 660 mm focal length telescope
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Description:
M39 is a very loose and large cluster of quite bright stars that we see against the backdrop of the bright band of the Milky Way as it crosses the northern hemisphere summer sky. It is located about 1,000 light years from our solar system.
M39 was discovered by Guillaume Le Gentil in 1749, and Charles Messier added it to his catalogue of deep-sky objects in 1764.
Open star clusters are young groupings of stars, generally no more than a few million years of age. The individual stars are loosely bound together gravitationally, and gradually move apart over time, making them unrecognizable as a cluster.s
For a version of this photo WITH LABELS, click on your screen to the RIGHT of the photo, or click here:
www.flickr.com/photos/97587627@N06/48494904262
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Technical information:
Nikon D810a camera body on Tele Vue 127is (127 mm - 5" - diameter) apochromatic astrograph, mounted on Astrophysics 1100GTO equatorial mount
Eight stacked subframes; each frame:
ISO 3200; 30 seconds exposure at f/5.2, unguided
(with LENR - long exposure noise reduction)
Subframes stacked in RegiStar;
Processed in Photoshop CS6 (brightness, contrast, colour balance)
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A quick image of Messier 27, before exam season begins. Taken during nautical twilight since it doesn't properly get dark here in the UK now until August.
Details:
Skywatcher 200PDS
Skywatcher HEQ5 Pro
Canon EOS 700D
59 x 30s ISO800 subframes, stacked in Deep Sky Stacker and processed in IRIS and GIMP.
Used my 6" f7 apo triplet and DSLR with UHC filter to capture 5 subframes at 15 minutes each. Stacked and darkframe (7) calibrated in Deepskystacker and processed in Photoshop.
Image taken early hours 6/11/16
This is a small part of the Rho Ophiuci complex, a nice zone of the sky toward the center of our Milky Way galaxy. Within the image you could see dark nebula, dust clouds, star-forming regions and part of the reflection nebula IC 4603 (blue, to the left). Nefertiti's head or a dark angel, whatever you think of the silouette, has also interesting views rotating the image. TEC 140 refractor scope, camera Sbig STF8300-AO/8, 7.5 hours in LRGB exposure, 12 min subframes, from my backyard obs at La Colonia, Illapel, Chile.
Esta imagen es una pequeña parte del complejo nebular cercano a la estrella Rho Ophiuci,hacia el centro de nuestra galaxia la VÃa Láctea. En ella se pueden ver nebulosas oscuras, nubes de polvo interestelar, regiones de formación estelar, y parte de la nebulosa de reflección azul IC 4603 a la izquierda. La cabeza de Nefertiti, o un ángel negro, o lo que Ud. vea en la silueta, ofrece también vistas interesantes al rotar la imagen. Telescopio refractor TEC 140, cámara Sbig STF8300-AO/8, 7.5 horas acumuladas en LRGB, subframes de 12 minutos, desde mi observatorio casero en La Colonia, Illapel, Chile. Saludos y comentarios bienvenidos...
The great nebula in Orion captured on 1-29-2017 from the General Nathan Twinning Observatory (GNTO) in Belen, New Mexico using an AT65 apo refractor, an SBIG ST4000XCM camera and a Losmandy G11 mount. Exposures were:
15 x 10"
15 x 1'
12 x 10'
Subframes were combined and processed using Pixinsight. Final tweaks made using Photoshop CS2.
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Photographed at Algonquin Provincial Park, Ontario, Canada, between 02.39 and 03.00 EDT
(285 km by road north of Toronto)
* Temperature 11° C.
* Total exposure time: 11 minutes
* 540 mm focal length telescope
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Description:
This region of delicate red ionized hydrogen gas clouds lies at the centre of The Northern Cross, which is a distinctive star pattern formed by the brightest stars in the constellation Cygnus (The Swan) in our Milky Way galaxy. These gas clouds are too faint even to be glimpsed with the unaided eye or binoculars, but a long exposure with a digital camera shows them well.
Sadr: The bright star near the centre of the frame is Sadr (also known as Gamma Cygni), the middle star of the Northern Cross. Sadr lies some 1,800 light years from our solar system. It has 12 times our Sun's mass and 150 times its radius, and emits 33,000 times our Sun's total energy. Super-massive stars such as Sadr consume their fuel very quickly, and have very short life spans. Sadr is only about 12 million years old, compared with the Sun's age of ~4.6 billion years.
For a version of this photo WITH LABELS, click on your screen to the RIGHT of the photo, or click here:
www.flickr.com/photos/97587627@N06/31234962156
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Technical information:
Nikon D810a camera body on Teleview 101is apochromatic refracting telescope, mounted on Astrophysics 1100GTO equatorial mount
Eleven stacked frames; each frame:
540 mm focal length
ISO 5000; 1 minute exposure at f/5.4; unguided
(with LENR - long exposure noise reduction)
Subframes registered in RegiStar;
Stacked and processed in Photoshop CS6 (levels, brightness, contrast, colour balance)
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