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M51 - E' una delle più belle galassie del cielo boreale, situata nella costellazione dei Cani da Caccia. Avevo già ripreso questa galassia (dovremmo in realtà parlare di una coppia di galassie interagenti) anni fa con scarsi risultati.
A dire il vero non sono soddisfatto da questa aleborazione. Purtroppo le immagini raw di provenienza non erano delle migliori: ho effettuato la ripresa da un luogo parzialmente inquinato con un newton da ben 42cm, disturbato anche da alcune luci che hanno creato un fastidioso gradiente (rimosso con PixInsight): sono quindi stato costretto a fare pose molto corte (sfruttando l'apertura ed il diametro dello strumento).
Dati tecnici: 5x90"@800iso + 4x30"@1600iso + 9x60"@1600iso + 5x90"@1600iso per un totale di 26 minuti di ripresa (con sottrazione del dark).
Da notare che l'immagine in questione è stata ripresa il 28 aprile del 2008.
Stacking con DeepSkyStacker, elaborazione con MaximDL, PixInsight e PhotoshopCS2.
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This is one of the most incredible galaxies in northern sky, located in Canes Venatici constellation (Hunting Dogs). I already imaged this galaxy (we should talk about an interacting pair of galaxies, to be precise) long time ago with poor results and with weaker experience in astroimaging.
I'm not very satisfied with this image though. Unluckily, raw images weren't good enough: i made the exposures from a partially light-polluted sky with a 42cm (about 17inches) newtonian reflector, also disturbed by some lights wich created an annoying background gradient (removed with PixInsight): so i've been compelled to make short exposures taking advantage of aperture and diameter of that telescope.
Technical datas: 5x90"@800iso + 4x30"@1600iso + 9x60"@1600iso + 5x90"@1600iso , for a sum of 26minutes equivalent exposure (subtracted darks too).
Besides, this image was captured on april 28th of 2008 (i preferred waiting for better wnowledges in post processing).
Stacked with DeepSkyStacker, post-processed with MaximDL, PixInsight e PhotoshopCS2.
Lens: Nikon 180mm ED AI-s f/2.8, shot at f/2.8
Camera: Canon 6D (unmodified)
Exposure: 34x4min ISO 100
Filter: None
Mount: Celestron CGEM DX
Captured with BackyardEOS
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX (Orange zone)
Imaging telescopes or lenses: Explore Scientific 127mm ED TRIPLET APO
Imaging cameras: ZWO ASI1600MM Pro-Cool
Mounts: iOptron CEM60
Guiding telescopes or lenses: Starfield 60mm Guidescope
Guiding cameras: ZWO ASI290MM mini
Focal reducers: Explore Scientific 0.7 Reducer/Flattener
Software: Topaz Sharpen Topaz · Photoshop CC 2020 Photoshop · Topaz Denoise Topaz · ZWO ASIAIR · PixInsight 1.8.8 Ripley · DeepSky Stacker (DSS) Deepskystacker 3.3.6
Filters: Astronomik SII 1.25" 12 nm · Astronomik Ha 1,25" 12 nm · Astronomik OIII 1.25" 12nm
Accessory: ZWO EAF Electronic Auto Focuser · ZWO 8x 1.25" Filter Wheel (EFW) · Celestron 9x50 finderscope
Date: Aug. 3, 2019
Locations: UAE desert, Abu Dhabi, United Arab Emirates
A couple days ago, I took some more shots to extend the total exposition time for this photo from 16 minutes to 38 minutes.
It certainly helped pull out more of the Running Man and the faint loop opposite M43 (better transparency the second time didn't hurt either). But I've had trouble processing it -- I don't know where those horizontal red lines are coming from. They're vertical with respect to the camera sensor, and I don't usually see pattern noise like that--it's not visible in the individual light frames (but to be fair, neither is a lot of the faint detail I managed to pull out of the stack).
Canon 6D full spectrum with EF 200mm F2.8L II USM at F4.5. Lights: 67 x 180 seconds ISO1600. Used an Astronomik CLS-CCD 72mm screw filter. Stacked in DeepSkyStacker, processed in Pixinsight.
Canon EOS 70D, 18-135mm at 135mm,
ISO-3200, f/5.6, 4s.
JPEG - WB 2800K
5x Light Frames, 5x Dark Frames, processed on Deep Sky Stacker.
Boring@70 mm constellation of Cancer culminates short before sunset these days. Threatened by clouds predictions towards midnight I decided to spend my time on its two open clusters. Well... This one turns out at 3-- or 2+ out of possible 5.
Aquisition time: 13.04.2013 around 22:00:00 MSK (GMT+4).
Equipment:
Canon EF 70-200 f/2.8L lens + Canon EF 2x III extender on EOS 60D mounted on Celestron CG-4 GEM (German equatorial mount) with RA drive.
Aperture 71 mm
Focal length 400 mm
Tv = 30 seconds
Av = f/5,6
ISO 400
Exposures: 64 + 16 dark frames
Processing: contrast was set to "linear", 16 bit TIFF were stacked in DeepSkyStacker, contrast colors adjusted in Photoshop. Image scaled down 50% to 1024x1024 (cheat!).
Notes: I have paid attention to the colours. At least I'm personally pleased with this aspect of the picture. And I'll redo it with a telescope this year or the next.
This is sixty images stacked in Deep Sky Stacker using a median combine. As all the other stars move much faster (being further from the North celestial pole) than Polaris they were averaged out.
All images:
Canon 60D & 14mm Samyang at f/2.8
30s exposure ISO 800
First shots for the stars; first attempts at astrophotography (with Joep: www.flickr.com/photos/98504409@N05/) .
Camera: Nikon D600
Lens: Nikkor 80-200mm f/2.8D ED (at f/4, 200mm, 50x 5 seconds exposures, ISO 1250, manual focus)
Mount: SkyWatcher NEQ6-Pro (from Joep)
50 light frames, stacked with DeepSkyStacker: deepskystacker.free.fr/
(note: we had a lot of light pollution and veil clouds)
Taken 6-7-16 at Atoka, OK
Scope: William Optics GT81 w/ 0.8x reducer (382mm focal length at f/4.7)
Mount: Orion Sirius EQ-G
Guidescope: Orion 50mm guidescope
Guiding camera: StarShoot Autoguider
Imaging camera: Canon t3i (unmodified)
ISO800
20x480" lights (2hr 40min total integration time)
26x darks
30x flats
200x bias
Stacked in DeepSkyStacker
Processed in Photoshop CS6
The images comprising this were taken through drifting, thin cloud - of course, while setting up and locating the (dim) subject, the sky had been perfectly clear! The stars are not as sharp as I'd like, due to various factors. Still, I was pleased with the result, given the conditions.
10 x 4-minute exposures at ISO 1600, f/4. Manually guided off-axis. Modified EOS 600D & Revelation 12" Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; final curves & colour-balance adjusted using Paint Shop Pro; noise reduction via CyberLink PhotoDirector.
Compilation de 20 photos, 3 darks, 4 offsets et 3 flats dans Deepskystacker. Pose unitaire: 117 secondes, 135mm, F/3.2, ISO 800.
L'amas en haut à gauche serait il NGC 1039-M34?
Comet C/2014 Q2 (Lovejoy) looking spectacular on 30/12/2014. Taken from the Sunshine Coast Hinterland Australia using Olympus OMD EM1 and Zuiko Digital 150mm f2.0 lens on IOptron Skytracker mount. 11x30 second exposures ISO1600 Stacking on Stars in DeepSkyStacker and Processing in Photoshop.
Hard to believe that this is the same data as the previous iteration, and it is a little less embarrassing! I put this back through DSS (multiple times) using the same settings, but in this case I reset all white balance settings (as I use a modded DSLR) and also used RGB background calibration instead of Per Channel. Even the pelican has put in a tenuous appearance, and the detail at the top of the image is vastly improved. A little bit clipped, but I'm not going to lose any sleep over that. :)
It all takes time, but in this case I think it was worth it :)
Nikon D70 full spectrum mounted directly on an EQ5, 55-200 at 55mm , f5.6, 1600iso, unguided
35x80sec subs for a total of 47 minutes
Darks, flats and bias
Stacked and processed in DSS and CS5, with a little help from Noel's tools.
100min total (20x300s@800iso)
UK 8/12/13
Takahashi FSQ106ED f/5
Celestron Advanced Vx Mount Guided
Canon D1100 (modified) CLS filter
BackyardEOS, PHD
Deepskystacker, Photoshop CS6
This is my first-ever image of a deep-sky object.
Taken with a TMB92L, Canon T3i DSLR, and Celestron CG-4 mount. Consists of 14 light and 5 dark frames, each a 30-second exposure at ISO 800, stacked in DeepSkyStacker and processed in Photoshop.
28 x 5 minutes, ISO 800
40 Darks, 200 Bias
Equipment:Canon 450D (full spectrum modified), Orion 8" f/3.9 Newtonian Astrograph, Atlas EQ-G, Orion SSAG/ST-80, Baader MPCC
Aquisition: EQMOD, Cartes du Ciel, Backyard EOS, PHD
Calibration in DeepSkyStacker
Post-processing in Pixinsight
This Image has been made by using DeepSkyStacker to stack 126 frames captured earlier today of (most of!) the Andromeda galaxy (M31) + M32. A cannon EOS60D was used (15s; exp at ISO 1600) mounted at prime focus onto a Skywatcher 200 reflector.
Taken through Celestron C8, Antares f/6.3 reducer with Nikon D5100.
Stacked in DeepSkyStacker, processed in StarTools.
It's amazing. I've been in the astronomy club for over two years and this is my first club observing night I attended. What a treat it was. The sky had great seeing tonight. I saw Jupiter's cloud bands for the first time; the double-double near Epsilon Lyrae; Uranus, Neptune, M13, M15, M31, M33, M45, the Ring Nebula, and the small Dumbell Nebula. We also caught half a dozen meteors.
The central region of the Milky Way at the intersection of Sagittarius, Ophinicus and Scorpius.
Gear Used:
-Camera: Canon EOS 350D (APS-C)
-Lens: Canon EF-S 18-55mm
-Mount: Nyxtech NyxTracker
Aquistion Details:
15x42" sub exposures
10.5 min total integration
ISO-1600
f/4.5
35mm focal length
Software Used:
RawTherapee
DeepSkyStacker
Pixinsight 1.6
rnc-colorstretch
Adobe Photoshop CS5.1
-HLVG Plugin
Crescent nebula, imaged night of June 27 2022, from backyard in Sunnyvale California. Camera is QHY168C at -10C, mount is Losmandy G11 with Gemini-1. Autoguided with PHD2 using Celestron OAG, with ZWO ASI224 autoguide camera. Equipment run by NINA. This is a stack of 8 subs of 300 sec each, using DeepSkyStacker with LogSqRt of luminance stretching. Added Halpha filtered image as Red. Added Televue Nebustar filtered image (Hbeta+Oxygen3 as Blue layer. Added UVIR color layer, with no filter.
鏡筒: 8cm F6 (笠井 BLANCA-80EDT) + 0.6x レデューサー
カメラ: OM-D E-M5
赤道儀: スカイメモS
288mm, F3.6, 8s, ISO1600 を DeepSkyStacker で8枚コンポジット。LightRoom CC でトリミング、トーンカーブ調整。
Today is the last day of my vacation. This is the place that I spent a few days and let me tell you, the stars are just amazingly beautiful up there in the mountains.
Photo info: several shots stacked with DSS (DeepSkyStacker - deepskystacker.free.fr/english/index.html only to increase the Signal to Noise Ratio (SNR).
A bit of hot highlights from the bare flash on the cottage at the end of the exposure but this is it ...
M42, The Great Nebula in Orion
Second pass at data from March 21, 2014. M42, 10 minute stack of 20x30" exposures on a Canon 500D through an Orion ED80.
Captured using Backyard EOS, stacked with DeepSkyStacker, post-processed in Pixelmator.
Celestron 8" Newtonian and an AVX Mount.
ZWO1600MC - Cooled Colour Camera.
Image: (Subframes of 1 minute each were stacked)
Stacking with DeepSkyStacker
Processing in Photoshop and LightRoom.
Trifid M20 - 57 Minutes of Light
Hendrik le Roux
Flickr Page:
Panasonic Lumix GH2 with Panasonic G Vario 14/43mm 3.5/5.6f. Shot at 14mm and wide open.
Location: Capolago, Ticino, Switzerland.
The bright object at the center of the picture is jupiter!
Tried to capture Jupiter in the night sky. Stacked 32 pictures, each with a 20s exposure at 3.5f with DeepSkyStacker. The purple glue is due to the light pollution from the nearby small town..
Visit my website: www.fieelstuff.com.
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Fujifilm X-T10, XF18-55mm F2.8-4.0 @ F5.6 and 55mm, ISO 3200, 10 x 3 min, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing in GIMP, taken Sept. 28.
Cropped quite a bit.
Oct. 2 update: Removed some of the light pollution gradient.
Mar. 7 update: Star reduction.
The comet, currently in Andromeda, was easily visible via 7 x 50 binoculars. However I couldn't image through the 'scope, as the comet is to the West and my view is blocked, so I just used a short telephoto lens on a star tracker, and cropped the result a little. The comet’s tail can be seen faintly in the photo, pointing to the 2 o’clock position. The slight gap in the star trails is due to the sequence of frames being broken by passing cloud.
19 x 30-sec exposures at f/4 and ISO 3200 with an EOS 600D and Zeiss Jena 135mm f/3.5 lens, on a Vixen Polarie star tracker; frames stacked on the comet (hence the slightly trailed stars) in DeepSkyStacker, with curves adjustment and further noise reduction in post-processing.
Target: Rosette Nebula (Caldwell 49) located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy; Distance of about 5,200 light years from Earth
Main Scope / OTA: William Optics GT71 with WO Flat6 0.8x Flattener Reducer (~335mm FL)
Main Imaging Camera: ZWO ASI 071 MC Pro
AutoGuiding: ZWO ASI 120MM Mini mono guide camera + Altair Starwave 50mm guide scope
Mount: Celestron AVX
Control & Capture: ZWO ASIair (+SkySafari 6 Pro for GoTo [mount] control), controlled wirelessly via iPhone X
Main Imaging Camera Settings: Gain 120, 3min. subs, -20 cooling
Light Frames: 59 (2hr 57min)
Calibration Frames: 30 dark frames, 30 bias frames, 16 flat frames
Filter(s): STC Astro Duo-Narrowband (Hα + OIII)
Dew Control: Kendrick Astro Instruments dual channel controller, 2x Kendrick Premier heater straps (OTA + guide scope)
Stacking Software: DeepSkyStacker
Processing Software: Photoshop CC
Shooting Time/Date: 19:43, Jan. 3rd, 2019
Location: Backyard, Chicago Suburb, Bortle 5 (approx.)
25x60s at iso 400.
150mm (750mm FL) F5 Newtonian with GSO coma corrector.
First try with autoguiding using PHD2. Unfortunately the 3D printed guidescope mount was not nearly robust enough. 2/3 of the exposures were thrown out.
Stacked with DeepSkyStacker and post processed in Photoshop.
Unfortunately a large number of Geo satellites were present in the view and created streaks.
Stacked in DeepSkyStacker and processed in PixInsight, Aperture and Noise Ninja.
Approx 10x60s subs @6400 with flats and darks, through a ED80 @ f/7.5.
72ED apo with SX Trius 694/Ha filter and field flattener piggybacked to C9.25 on a CEM60. Eight 900 second subframes stacked and dark frame subtracted in Deepskystacker and processed in Photoshop CS2. Autoguiding through 9.25 with QHY5L-II colour camera and 0.5x reducer.
Taken 21/01/21
Shotdate: Aug. 10 2008
Camera: Nikon D300
Optics: Nikkor 60mm f4.0 Micro
ISO: 800
Mount: AstroTrac
Older version: www.flickr.com/photos/14721988@N02/3914645359/in/photostr...
DeepSkyStacker settings:
Stacking mode: Standard
Alignment method: Bicubic
Stacking 10 frames (ISO: 800) - total exposure: 25 mn 2 s
Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Offset: 56 frames exposure: 1/8000 s
Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Dark: 27 frames exposure: 2 mn 31 s
Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Flat: 20 frames exposure: 1/8 s
Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)
.
Postprocessing in PixInsight:
I worked a bit with this:
www.stelleelettroniche.it/en/2013/01/astrophoto/sword-orion/
And I took these steps (it's a bit of a read):
ChannelExtraction: Processing view: Autosave
Extracting lightness: 100%
ATrousWaveletTransform: Processing view: Autosave_L
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
HistogramTransformation: Processing view: Autosave
Processing channel #0: Histogram transformation: 100%
Processing channel #1: Histogram transformation: 100%
Processing channel #2: Histogram transformation: 100%
Autosave_L: Masking from swap files...
ChannelExtraction: Processing view: Autosave
Extracting lightness: 100%
ATrousWaveletTransform: Processing view: Autosave_L
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
HistogramTransformation: Processing view: Autosave
Processing channel #0: Histogram transformation: 100%
Processing channel #1: Histogram transformation: 100%
Processing channel #2: Histogram transformation: 100%
Autosave_L: Masking from swap files...
ChannelExtraction: Processing view: Autosave
Extracting lightness: 100%
ATrousWaveletTransform: Processing view: Autosave_L
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
HistogramTransformation: Processing view: Autosave
Processing channel #0: Histogram transformation: 100%
Processing channel #1: Histogram transformation: 100%
Processing channel #2: Histogram transformation: 100%
Autosave_L: Masking from swap files...
ChannelExtraction: Processing view: Autosave
Extracting lightness: 100%
ATrousWaveletTransform: Processing view: Autosave_L
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
HistogramTransformation: Processing view: Autosave
Processing channel #0: Histogram transformation: 100%
Processing channel #1: Histogram transformation: 100%
Processing channel #2: Histogram transformation: 100%
Autosave_L: Masking from swap files...
ChannelExtraction: Processing view: Autosave
Extracting lightness: 100%
HistogramTransformation: Processing view: Autosave_L
Processing gray channel: Histogram transformation: 100%
Calculating view histograms...
ATrousWaveletTransform: Processing view: Autosave_L
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
Calculating view histograms...
HistogramTransformation: Processing view: Autosave
Processing channel #0: Histogram transformation: 100%
Processing channel #1: Histogram transformation: 100%
Processing channel #2: Histogram transformation: 100%
Autosave_L: Masking from swap files...
Calculating view histograms...
ChannelExtraction: Processing view: Autosave
Extracting lightness: 100%
HistogramTransformation: Processing view: Autosave_L
Processing gray channel: Histogram transformation: 100%
Calculating view histograms...
HistogramTransformation: Processing view: Autosave
Processing channel #0: Histogram transformation: 100%
Processing channel #1: Histogram transformation: 100%
Processing channel #2: Histogram transformation: 100%
Autosave_L: Masking from swap files...
Calculating view histograms...
HistogramTransformation: Processing view: Autosave_clone
Processing channel #0: Histogram transformation: 100%
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Processing channel #2: Histogram transformation: 100%
Calculating view histograms...
ATrousWaveletTransform: Processing view: Autosave_clone
Processing channel #0
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Inverse à trous wavelet transform: 100%
Processing channel #1
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Processing channel #2
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
Calculating view histograms...
HistogramTransformation: Processing view: Autosave_clone
Processing channel #0: Histogram transformation: 100%
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Processing channel #2: Histogram transformation: 100%
Calculating view histograms...
ImageIdentifier: Processing view: Autosave_clone
id = Final_Color_Stars
ImageIdentifier: Processing view: Autosave_clone
id = SM
ImageIdentifier: Processing view: Autosave
id = ORG
ATrousWaveletTransform: Processing view: SM
Processing channel #0
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Processing channel #1
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Processing channel #2
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
Calculating view histograms...
PixelMath: Processing view: SM
Executing PixelMath expression: combined RGB/K channels:ORG-SM: 100%
Truncating to [0.0000000000,1.0000000000]: 100%
ChannelExtraction: Processing view: ORG
Extracting lightness: 100%
HistogramTransformation: Processing view: ORG_L
Processing gray channel: Histogram transformation: 100%
Calculating view histograms...
HistogramTransformation: Processing view: BLUR
Processing channel #0: Histogram transformation: 100%
Processing channel #1: Histogram transformation: 100%
Processing channel #2: Histogram transformation: 100%
ORG_L: Masking from swap files...
Calculating view histograms...
CurvesTransformation: Processing view: BLUR
Curves transformation: 100%
ORG_L: Masking from swap files...
Calculating view histograms...
PixelMath: Processing view: ORG
Executing PixelMath expression: combined RGB/K channels:ORG+SM+BLUR: 100%
Rescaling to [0.0000000000,1.0000000000]: 100%
ImageIdentifier: Processing view: ITR1_clone
id = ITR1_SM
ATrousWaveletTransform: Processing view: ITR1_SM
Processing channel #0
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Inverse à trous wavelet transform: 100%
Processing channel #1
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Processing channel #2
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Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
Calculating view histograms...
PixelMath: Processing view: ITR1_SM
Executing PixelMath expression: combined RGB/K channels:ITR1-ITR1_SM: 100%
Truncating to [0.0000000000,1.0000000000]: 100%
ChannelExtraction: Processing view: ITR1_BLUR
Extracting lightness: 100%
HistogramTransformation: Processing view: ITR1_BLUR_L
Processing gray channel: Histogram transformation: 100%
Calculating view histograms...
CurvesTransformation: Processing view: ITR1_BLUR
Curves transformation: 100%
ITR1_BLUR_L: Masking from swap files...
Calculating view histograms...
PixelMath: Processing view: ITR1_BLUR
Executing PixelMath expression: combined RGB/K channels:ITR1+ITR1_SM+(ITR1_BLUR*1.25): 100%
Rescaling to [0.0000000000,1.0000000000]: 100%
StarMask: Processing view: ITR2
Extracting structures: 100%
RangeSelection: Processing view: ITR2
Generating range selection mask: 100%
ATrousWaveletTransform: Processing view: range_mask
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
Calculating view histograms...
ATrousWaveletTransform: Processing view: range_mask
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
Calculating view histograms...
ATrousWaveletTransform: Processing view: range_mask
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
Calculating view histograms...
PixelMath: Processing view: range_mask
Executing PixelMath expression: combined RGB/K channels:range_mask+star_mask: 100%
Truncating to [0.0000000000,1.0000000000]: 100%
PixelMath: Processing view: ITR2_SM
Executing PixelMath expression: combined RGB/K channels:ITR2-ITR2_SM: 100%
Truncating to [0.0000000000,1.0000000000]: 100%
ImageIdentifier: Processing view: ITR2_SM
id = ITR2_STAR_MASK
ImageIdentifier: Processing view: ITR2_clone
id = ITR2_SM
ATrousWaveletTransform: Processing view: ITR2_SM
Processing channel #0
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Inverse à trous wavelet transform: 100%
Processing channel #1
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Processing channel #2
À trous wavelet transform: 100%
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Normalizing sample values: 100%
Calculating view histograms...
PixelMath: Processing view: ITR2_SM
Executing PixelMath expression: combined RGB/K channels:ITR2-ITR2_SM: 100%
Truncating to [0.0000000000,1.0000000000]: 100%
ATrousWaveletTransform: Processing view: ITR2_SM
Processing channel #0
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Processing channel #1
À trous wavelet transform: 100%
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Processing channel #2
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
Calculating view histograms...
PixelMath: Processing view: ITR2_SM
Executing PixelMath expression: combined RGB/K channels:ITR2-ITR2_SM: 100%
Truncating to [0.0000000000,1.0000000000]: 100%
LocalHistogramEqualization: Processing view: ITR2_BLUR
Extracting CIE L* component: 100%
CLAHE: 100%
Importing CIE L* component: 100%
ITR2_STAR_MASK: Masking from swap files...
Calculating view histograms...
CurvesTransformation: Processing view: ITR2_BLUR
Curves transformation: 100%
Calculating view histograms...
PixelMath: Processing view: ITR2_BLUR
Executing PixelMath expression: combined RGB/K channels:ITR2+ITR2_SM+ITR2_BLUR: 100%
Rescaling to [0.0000000000,1.0000000000]: 100%
ATrousWaveletTransform: Processing view: ITR3_clone
Processing channel #0
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Processing channel #1
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Processing channel #2
À trous wavelet transform: 100%
Inverse à trous wavelet transform: 100%
Normalizing sample values: 100%
Calculating view histograms...
ImageIdentifier: Processing view: ITR3_clone
id = ITR3_SM
PixelMath: Processing view: ITR3_SM
Executing PixelMath expression: combined RGB/K channels:ITR3-ITR3_SM: 100%
Truncating to [0.0000000000,1.0000000000]: 100%
LocalHistogramEqualization: Processing view: ITR3_BLUR
Extracting CIE L* component: 100%
CLAHE: 100%
Importing CIE L* component: 100%
ITR2_STAR_MASK: Masking from swap files...
Calculating view histograms...
CurvesTransformation: Processing view: ITR3_BLUR
Curves transformation: 100%
Calculating view histograms...
PixelMath: Processing view: ITR3_BLUR
Executing PixelMath expression: combined RGB/K channels:ITR3+ITR3_SM+ITR3_BLUR: 100%
Rescaling to [0.0000000000,1.0000000000]: 100%
CurvesTransformation: Processing view: ITR4
Curves transformation: 100%
Calculating view histograms...
PixelMath: Processing view: ITR4
Executing PixelMath expression: combined RGB/K channels:(ITR4*1.55)+(Final_Color_Stars*0.45): 100%
Rescaling to [0.0000000000,1.0000000000]: 100%
Canon EF 50mm lens (MK I), at f/2.8, ISO 800, three hand-tracked exposures (total exposure time 5m 15s), combined in DeepSkyStacker and processed in Photoshop.
I would have gone deeper, but the clouds rolled in. Still, you can see the beginnings of the dust lanes on the large version, and the two satellite galaxies (annotated).
New set of images for this one. My autoguiding is getting better and better after many frustrating hours tuning the mount. Very happy with the star detail on this one.
Date:12/9/2009
Location:Brisbane Australia
Imaging Camera: Canon 1000D prime focus
Imaging Scope: Mak Cas 127mm
Focal Length: 1500mm F12
Guide Camera: SSAG
Guide Scope: Orion 80mm F5 Refractor
Guided with PHD Guiding
Mount: Celestron EQ5 GT
Exposure: 90 min (15x6min) full colour
Darks: 6x6min
ISO: 800
Processing: DeepSkyStacker, CS3, Noel Carboni's Astronomy Tools
Telescopio: Maksutov Celestron 127 mm
Montatura: Celestron SLT.
Fotocamera: Canon EOS R100 (non modificata).
Pose: 34x15 secondi @3200 ISO.
Elaborazione: DeepSkyStacker, Siril, Pixinsight, Gimp.
My first ever attempt to take Andromeda aka Messier 31/NGC 224. Hopefully this will be good to compare against when I revisit it in the future. I didn't get as many subs as I wanted because contary to the weather forecast the clear skies didn't last anywhere near enough.
Used Sky Safari for my location settings and the talking clock to get the exact time.
2 star alignment with Vega and Capella then slewed straight to Andromeda with no need for adjustment.
(Why cant it always be this simple!)
Nikon D3100 connected to the mount and using a 55-300mm lens .
Yongnuo MC-36R/N3 Wireless Timer Remote.
19 30 second frames (9 1/2 Minutes).
ISO 800, f/5.6, WB Incandescent.
Lens focal length set at 300mm.
Stacked in Deep Sky Stacker with darks, flats and bias..
Processed in Adobe Photoshop Lightroom.
Recommended settings in DSS. Stretched the contrast and clarity in Lightroom.
Taken in Stretford, Manchester on the 31st August 2013.
I've reprocessed this a few times but didn't want to loose this original pic so have posted the updated version here and kept this for my own record.
Just pointed the camera straight up to the coreof the Galaxy. I took 5 photos with DNR on. Using Deepskystacker I stacked them all together then edited the colours and claryity in Lightroom. First time using DeepSkyStacker and I know how to improve for next time. Mainly take more shots! Impressed with my first result anyhow. Just need some interested foregrounds to find!
Just messing about with some old data now that I've learnt to use GradientXterminator correctly. :)
Nikon D70 modded, 18-55 Nikkor at 18mm , f7.1, 1000iso
11x4 min subs for a total of 44 minutes, unguided EQ5
Darks and bias
Stacked in DSS and processed in CS5, with help from Noel's tools.
Constellation: Scorpius/Ophiuchus
Taken at Blackheath NSW on 12/09/2009
Modified Canon EOS 400D, 50mm at f2.8
EQ5 mount autoguided by 3"WO refractor;Philips webcam & PhD
ISO800 7 x 3min subs stacked in DeepSkyStacker with darks.
After a long break in astrophotography I'm trying it again. Really cheap setup: Canon 1000D with Yonguo 50/1.8, EQ-1 mount with carefully tuned DC motor drive. 8 x 2 minutes at ISO 800 f/1.8. Some darks, offsets. Stacked in DeepSkyStacker. Slight colour tuning and sharpening in GIMP. The colours are still off, but I'm just learning.
Observation date: 24 & 28 May 2023, 10 & 11 June 2023
Total exposure time: 6 hours 3 minutes (242 light frames taken at ISO 200, 90s exposure at 30 seconds interval)
Approximate location: My backyard in Eden Glen, Edenvale, Gauteng
Equipment Used:
-----------------------
Unmodified Canon EOS 1200D camera
Canon EF-S 55-250mm f/4-5.6 IS II lens set at 250mm and f/5.6
Sky-Watcher EQ5 mount with Orion Truetrack Dual-Axis Motor Drives and GPUSB Shoestring Astronomy EQMOD
Starfield F/3.6 60mm guide scope
Altair Astro GPCAM2 290M Mono guide camera
Acquisition via laptop with Astrophotography Tool (APT) and PHD2 autoguiding software
Processing Techniques Used:
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242 light frames were stacked in DeepSkyStacker with 262 dark frames, 120 bias frames, 95 flat frames and 95 dark flat frames. The resulting stacked TIF image was further processed in PixInsight. Workflow included dynamic crop, background extraction, photometric color calibration, noise reduction with TGV Denoise and Multiscale Median Transform, non-linear stretch, colour saturation, removed magenta colour around stars, star reduction, dark structure enhancement, and further background smoothing with Multiscale Linear Transform.
Yolanda Combrink
Milky Way Of Hong Kong @ 2016-11-03
Shooting Date : 2016-11-03
Tv (Shutter Speed) : 30 Sec
Av (Aperture Value) : f/3.2
ISO Speed : 1000
Camera : Sony A7RII
Scope : Zeiss Distagon T* 2.8/15 ZE
Tracking Mount : Nano-Tracker
#AllMountainPhotographyOfHongKong
#CarlZeiss
#DeepSkyStacker
#HongKong
#MilkyWay
#NanoTracker
#Sony #SonyA7RII
#Sonyfullframer #SonyPhotos
#ThisIsHongKong
#UltraWideAngleLens
#UltraWideAngle
#Zeiss
#ZeissDistagonT15mmZE
I stacked three 30 second exposures to enhance the Zodiacal light, Comet Holmes, and the Andromeda Galaxy.
OTA: GSO 6" F/5 newtonian reflector
Starizona Nexus 0.75x coma corrector (for f/3.75)
Camera: ZWO ASI1600MM
Exposure: Ha 8x10min, O3 10x10min, S2 18x10min
Mount: CEM70G
Captured with SGP
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX
Lens: Nikon 180mm ED AI-s f/2.8, shot at f/2.8
Camera: Canon 6D (unmodified)
Exposure: 23x4min iso800
Filter: None
Mount: Celestron CG5-ASGT
Captured with BackyardEOS
Registered and stacked with DeepSkyStacker
Photographed from Marathon Motel, in Marathon TX
I was testing my polar alignment again. This time I think I got it right. A single 2 minute exposure with dark field subtraction. The clouds have now rolled in (those wispy streaks across the frame) and perhaps I may go out later. I decided to go out and check the skies tonight and I was surprised it was clear considering the rain and clouds earlier. In the 10 minutes it took me to setup, the clouds just rolled on in. This is also a good test of the Nikkor 50mm f/1.4 AI lens. I stopped down to f/2.8 and it definitely helps keep the stars round.