View allAll Photos Tagged DeepSkyStacker
OTA: GSO 6" F/5 newtonian reflector
Starizona Nexus 0.75x coma corrector (for f/3.75)
Camera: ZWO ASI1600MM
Exposure: Ha 9x10min, S2 9x10min, O3 3x10min
Mount: CEM70G
Captured with SGP
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX (light pollution zone: red)
15 (of 30) usable lights (60s), 10 darks, 20 flats, 20 bias. Canon EOS 450D DSLR prime focus, ISO1600. Baader Neodymium filter and coma corrector. Sky-Watcher 150P Explorer on EQ3-2 mount. DeepSkyStacker > PixInsight > PhotoShop.
Distancia: 1500 años luz
Información sobre esta nebulosa: es.wikipedia.org/wiki/Nebulosa_Cabeza_de_Caballo
Constelación: Orion
Camera: Canon T1i unmodified
Exposure: 4hr 5 min (49 x 5 min) at ISO 1600
Capturing software: Backyard EOS
White balance: Custom
Mode: RAW
Focal ratio: f6.3
Telescope: Celestron C6 SCT OTA
Filter: Astronomik CLS Light Pollution Filter - Canon EOS Clip
Mount: iOptron iEQ45
Guiding: Orion StarShoot Autoguider with PHD and Stellarvue F60M3
Dithering: Yes
Calibration: 30 flats, 24 darks, 30 flat darks
Processing: Stacking in Deep Sky Stacker, Photoshop CS5, Noel Carboni Tools
Date: 25-Dec-2011
Location: Bogotá, Colombia
Comet Lulin from my driveway. This version used the background stars for alignment during stacking (so the comet is a bit blurred by its own motion).
My focus was a bit off, so the stars are a bit chunky in the full-size version.
46 x 120s @ f/4 and ISO1600
Stacked with DeepSkyStacker
Canon 450D
Canon EF 100mm f/2.8 Macro USM
AstroTrac TT320
Localisation : CastresmallObservatory (Castres, Tarn - France)
Acquisition Date : 2017-01-18
Auteur/Author : ROUGÉ Pierre
Mouture/mount : Orion Atlas EQ-G
Tube/Scope : Newton Orion 200/1000 (f/5) + MPCC Baader
Autoguiding : Skywatcher Synguider (v1.1) & Meade ETX 70/350 mm
Camera : Canon EOS 400D (Digital Rebel Xti) refiltré Astrodon in Side (modded Astrodon in Side)
+ EOS CLIP CLS Astronomik
Exposure : 86 minutes [43 subexposures of 120 sec each (selected from 43)] @ ISO 1600
Calibration : Dark & Bias : 10/11 @ ISO 1600 - Flat & Dark-Flat : 9 @ ISO 400
Temps/Weather : Bonne transparence. Faible vent nul. T= -4°C. Humidité faible.
Constellation : Orion / Orion
Software Used : Astro Photograph Tool (v3.20), DeepSkyStacker 3.3.6, Pixinsight LE, PhotoShop 7, xnview, Noiseware Community Edition
The ETA Carina Nebula is the brightest and biggest in the sky however it is less famous that the Orion Nebula as it is only visible from the Southern Hemisphere. The glowing pink is Hydrogen Alpha emissions from Ionized H2 gas. The massive star ETA Carina may die soon in a Hypernova that could be visible during the day.
An attempt to get colorful starfield.
19 images from Nikon D3100 10s f/1.8 35mm ISO 1600 stacked in DeepSkyStacker + developed in Acdsee Pro.
11 minutes total exposure. 11 (of 20) usable lights (60s), 10 darks, 20 flats, 20 bias. Canon EOS 450D DSLR prime focus, ISO1600. Baader Neodymium filter and coma corrector. Sky-Watcher 150P Explorer on EQ3-2 mount. DeepSkyStacker > PixInsight > PhotoShop. (Diffraction spikes are from the scope not Star Spikes Pro!)
Couldn't resist this. Only found out about this last night (tonight) and as it was clear I felt obliged!
For those that don't know - or don't care :) - a supernova is a star that has come to the end of its life and exploded
On the left is the image I took on 3 May, and to the right is the quick and dirty image I've just taken. The supernova is kind of obvious (more so with the yellow lines pointing to it!)
The "surrounding" stars are in our galaxy, probably just thousands of light years away. The supernova, equally as bright, is in M51, the Whirlpool Galaxy, and is about 31 million light years away. Which also means of course that it went supernova 31 million years ago. Fascinating stuff. :)
Overlooking the mouth of Belfast Lough towards Black Head and standing on a rocky outcrop at 1:30am at Ballymacormick Point. The two bright stars near the comet are the front foot of Ursa Major, the great bear, Talitha and Alkaphrah
The Monkey Head Nebula in Orion. 6 subs taken at 600 second exposure each using Esprit 150ED Apo and QHY168C
with UHC filter. Stacked in Deepskystacker and processed using Photoshop CS2.
Image taken in early hours of 31/01/19
Shotdate: 27-2-2014
Camera: Nikon D3x
Optics: Celestron 9.25" EdgeHD
Guiding: LVI SmartGuider 2 on F500mm f90mm APO
ISO-speed: 3200
Exposure: 225 x 60 seconds
Darks: 22
Flats: 21
Bias: 69
Stacked in DeepSkyStacker and post-processing in PixInsight
- www.kevin-palmer.com - On a rare winter night when it was both clear and above freezing, I headed out to Spring Lake for some astrophotography. I began to set up my iOptron Skytracker, when I realized I forgot my polar scope. That meant I could only do a rough polar alignment and was limited to about 1-minute subs. I was surprised how much detail was captured. This is a stack of 15 1-minute pictures, plus dark and bias frames taken with a 50mm lens. After stacking I processed it in Photoshop using the Astronomy Tools plugin to help bring out the nebulosity.
1h30m di integrazione poco lontano dall'inquinamento luminoso. Singolo scatto da 120 secondi a 800 iso
NGC 2683 known as the UFO galaxy
best 60% of 120 light frames, each of 65 seconds at ISO 800.
Stacked in DeepSkyStacker with calibration frames, then processed in StarTools.
Went out to the field again on 2022-02-09 to capture the moon passing through the Golden Gate of the Ecliptic, which would be just about right above the Zugspitze from that vantage point. I actually managed to capture a slightly better alignment than this, but in the end I think this widefield image with Orion to the left and the Golden Gate to the right framing the mountain looked even better. I additionally took some closeup shots of the Golden Gate with a 50 mm lens, waiting to be processed. Stay tuned!
This time, I also had company from a friend this time, who went home with some rather nice Orion Nebula and Flame Nebula with his telescope.
Captured setting my smartphone to maximum exposure time and mounting it on the Star Adventurer, since otherwise slight star trailing already became clearly visible. Additional frames for the foreground while the tracker was switched off.
I'm honestly quite surprised how well smartphones are usable for widefield astrophotography nowadays (at least if you're not aiming for H alpha - but maybe this will come too...).
EXIF:
Camera: VIVO V21 5G, main camera @ 16 MP (2x2 binning), 4,71 mm f/1.8
Exposure:
sky: 45 x 32 s (24 min total) @ ISO800
foreground: 19 x 32 s @ ISO 800
Mount: Star Adventurer, no guiding ;)
Processing: Stacking with Deep Sky Stacker, processing with Fitswork, Aurora HDR 2018, Luminar 2018 and Photoshop.
Taken with an unmodded Canon 600D through a Celestron NexStar 127SLT mounted on a Celestron CG-5 AS-GT. 20 shots, 15 seconds each, with an Astronomik EOS-Clip CLS filter. Processed with DeepSkyStacker, Nebulosity, PhotoMatix Pro, HLVG filter and Noel Carboni's Astronomy Tools for Photoshop Elements 9.
Orion Nebula
Running Man Nebula
Orion's Belt
Flame Nebula
Horsehead Nebula
Canon 200mm F2.8 @ F3.5
Canon T4I ISO 800 30 seconds
32x light frames
iOptron SkyTracker
DeepSkyStacker
Pixinsight 1.8
11% moon illumination
Poor seeing/Hazy
Bortle 4
I did an other processing of this image to get some more detail out.
Camera: Nikon D3x
Filter: UHC-s Baader 2" nebula filter
Optics: Celestron 9,25" EdgeHD
Guiding: LVI SmartGuider 2
Mount: SkyWatcher NEQ6 Pro
DeepSkyStacker 3.3.2 settings:
Stacking mode: Mosaic
Alignment method: Bicubic
18 frames (ISO: 1600) - total exposure: 1 hr 24 mn 18 s
RGB Channels Background Calibration: Yes
Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Offset: 108 frames exposure: 1/8000 s
Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Dark: 18 frames exposure: 4 mn 41 s
Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Flat: 32 frames exposure: 5 s
Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Processing in PixInsight 1.7
Twelve times:
ChannelExtraction
ATrousWaveletTransform
HistogramTransformation
DarkStructureEnhance
And finally a little stretch to get the details and color out: HistogramTransformation
ColorSaturation
Image of the Dumbbell Nebula, also known as Messier 27, or NGC 6853. It is a planetary nebula in the constellation of Vulpecula, the little fox. The nebula lies at a distance of about 1,360 light years. This image shows the nebula itself and surrounding stars of Vulpecula. I took the image using a Canon 600D, 250mm lens on a StarAdventurer tracking mount. The field of view in this image is approximately 1.3 degrees. The picture is made up of two separate images (1: f/5.6, 42sec exposure, ISO3200 and 2: f/5.6, 60sec exposure, ISO800) stacked using DeepSkyStacker software and further processed using Photoshop Elements 11.
This was taken during the Perseids meteor "hunting" session organised by www.astro.sg on 13.08.2013 early hours at Bishan Park. My 3rd attempt at trying landscape astrophotography in my light polluted country.
Personally I do not like to blend images and I am really a noob in blending composite images. But I guess this is absolutely necessary to rid the blurry foreground after stacking the long exposure shots. As such, this is a blended image made up of 3 x 60 seconds DSS-stacked photo for the background and a 10 seconds exposure of the same scene for the foreground.
Details:
Taken on 13 August 2013, 12:17AM.
Camera: Pentax K-30
Lens: DA12-24
ISO800, 14mm, f/4.0
Pentax O-GPS1 Astrotracer enabled during 60 seconds exposures
Some nasty banding running through this, and black blobs next to the brightest stars (which I can't explain). It is a little contrived, but a vast improvement on the first iteration. Not enough data - probably needs at least 200 subs, which it ain't gonna get! :)
200p/EQ5 unguided
Nikon D70 modded, iso1600, Baader Neodymium Filter
120 x 60 seconds
Darks, flats and bias
Stacked and processed in DSS and CS5, with help from Noel's Tools
Best result so far with the frames taken on the 15th. Something like 280 individual images are stacked to get this result, keeping the comet fixed, so that background stars are trailed. Due to intervening cloud and a few other problems during the evening the star trails are not continuous.
M13, also designated NGC 6205 and sometimes called the Great Globular Cluster in Hercules or the Hercules Globular Cluster, is a globular cluster of about 300,000 stars in the constellation of Hercules. Imaged using Atik 16IC-S monochrome CCD and William Optics FLT-110 mounted on NEQ6 Pro. 30 light frames ranging from 60 seconds to 600 seconds, no darks. Stacked in DeepSkyStacker, using the best 80% of frames.
The Rosette Nebula aka Caldwell 49. The open cluster in the middle is designated NGC 2244 aka Caldwell 50.
Difficult one this. Fainter than I expected, and was beset with the most horrendous gradient that was difficult to remove without destroying the nebulosity. Not entirely sure the focus is as good as it could be either :)
Cloud forecast for tonight, so I can get some kip! ;)
200p/EQ5 unguided
Nikon D70 modded, iso1600, Baader Neodymium Filter
120 x 60 seconds
Darks, flats and bias
Stacked and processed in DSS and CS5, with help from Noel's Tools
314L with Ha filter attached to a Tamron 70-200 zoom lens set at 135mm and piggybacked to the main scope. Orion nebula overexposed so as to bring out the surrounding nebulous region. 6 subs at 10 minutes each stacked in
Deepskystacker and processed in StarTools and Photoshop.
Image taken early hours of 03/01/17
This region in Cygnus features IC1311 the open cluster (with mag 13) visible at the top-left, Barnard 343, the dark nebula to the right and part of the gamma Cygni nebulosity complex. Canon 6D full spectrum with CLS-CCD filter on Skywatcher Esprit 100 mm refractor. 27x240 seconds ISO1600, stacked with DeepSkyStacker, processed in Pixinsight 1.8
Since I wanted to take picture at 800mm, there of course was no practical way to fit both the comet and clusters in a single photo. So, I took a huge risk and made my first mosaic. Two exposure sets with both at 25X100". SN-8 OTA at f4, CanonXT, Atlas EQ-G, DeepSkyStacker, Photoshop levels, curves and synthetic flats, guided with Orion SSAG and piggybacked SVR70ED.
Lens: Tamron 80-210 mm(210 mm), f/4.0. ISO400. 60s exposures, total 50 minutes.
DigiCamControl, DeepSkyStacker, Adobe Camera Raw, Adobe Photoshop CS6.
Object Details: Messier 108 (NGC 3556) is also known as 'The Surfboard Galaxy' due to it's edge-on orientation and it's the lack of both a central bulge and a distinct core). It lies approximately 46 million light-years from Earth and although it does not have well defined spiral arms, it is classified as a barred spiral whose arms are loosely wound.
Like many galaxies, including our own, it harbors a central supermassive black hole, which in it's case contains 24 million solar masses. Multiple x-ray sources have also been detected in M108, at least one of which is suspected to be an active intermediate mass black hole.
Visible in a small scope as an elongated sliver of light, larger instruments bring out detail in it's the mottled appearance of it's multiple dust lanes. Glowing at 10th magnitude it can be found in the constellation of Ursa Major and lies in the same wide-angle view with the Owl Nebula (I happen to have shot that wide-angle view simultaneous to shooting this "close-up' image of M108 and the previously posted on of the Owl Nebula (linked here: www.flickr.com/photos/homcavobservatory/40801122653/ ).
A composite showing both objects an be found at the link attached here: www.flickr.com/photos/homcavobservatory/48892418878/
Image Details: The attached was taken by Jay Edwards at the HomCav Observatory on the evening of March 27, 2019 using an 8-inch, f/7 Criterion newtonian reflector and a Canon 700D DSLR tracked on a Losmandy G-11 mount running a Gemini 2 control system. This in turn was guided using PHD2 to control a ZWO ASI290MC planetary camera / auto-guider in an 80mm f/6 Celestron 'short-tube' refractor.
Shot at ISO 1600, it is a stack of only 32 one-minute exposures (not including darks, flats & bias frames). Although due to the relatively short exposure used, it contains a much higher level of noise than I would prefer, since it was the first time I've imaged this object using this scope, I was encouraged by the result and look forward to trying a deeper exposure when it once again rotates into view. In the meantime I'm looking forward to processing the wide-angle shots taken simultaneously using an identical camera and an 80 mm apo.
Stacked in DeepSkyStacker and processed using PixInsight and PaintShopPro, as presented here it has been cropped slightly, re-sized down to HD resolution and the bit depth has been lowered to 8 bits per channel.
Nikon D3100 - Nikon NIKKOR-H Auto 50mm f/2 @ f2 / f2,8 / f4
Procesado con DeepSkyStacker + Adobe Photoshop CS6
18' de exposición (2 lights).
Shotdate: 13 march 2015
Camera: Nikon D4s
Optics: Celestron 9.25" EdgeHD
Guiding: LVI SmartGuider 2 on 500mm f90mm
Exposure: 300 seconds
ISO-speed: 3200 ISO
Frames: 53 light, 50 bias, 26 dark and 32 flat
Stacking in DeepSkyStacker and post-processing in PixInsight
Used my Meade 8" f4 Schmidt Newtonian and Atik 314L with narrowband filters to capture a sequence of 6x5min Ha,6x5min SII and 7x5min OIII. Stacked each set in Deepskystacker and colour combined (Hubble palette) in Maxim DL 4,final processing using Photoshop, Image taken earley hours of 14/10/15
Andromeda Galaxy (M31, M32, M110)
Date: 09-26-2014
Telescope (Lens): Orion 8in f/3.9 Newtonian Astrograph
Addition Optics: Baader Planetarium RCC1 Coma Corrector
Camera: Canon XSi
Exposures: 25 x 300 sec (ISO 800)
Processing: DeepSkyStacker, Photoshop
Mount: Atlas EQ-G
Tracking: EQMOD / Stellarium / PHD Guiding
Guidance Camera: Logitech 3000 Pro
Guidance Scope: Celestron 9x50 Finder
Astromomy weather as forcasted by Canadian Meteorological Center:
Cloud Cover: Clear
Transparancy: Above Average
Seeing Category: III (Average)
Temp: 65°F
Humidity: 75°
Light Pollution: "Yellow" - Based on Light Pollution Map
Moon, illuminated 59.9%, in conjunction with Pleiades, with slightly hazy sky; images taken on tripod at Melegnano, Lombardy, Italy.
Pleiades (30 images)
Exposure Time : 1/5 s
ISO : 3200
Moon (2 images)
Exposure Time 1 : 1/40 s
Exposure Time 2 : 1/200 s
ISO : 400
Camera Model Name : SONY ILCE-7RM4
Lens Model : SONY FE 100-400mm F4.5-5.6 GM OSS + 1.4X Teleconverter
Exposure Program : Manual
F Number : 8.0
Focal Length : 483.0 mm
Date/Time Original : 2023:09:06 00:26:20 UTC+02:00
Coordinates : 45.3591505 N, 9.3197281 E
Software : Sony Edit 3.6.00.01200+DeepSkyStacker 5.1.3+Gimp 2.10.34
NGC 7000North America Nebula - Cygnus Wall
The North America Nebula is an emission nebula in the constellation Cygnus.
Distance to Earth - 2,202 light years
As we are experiencing a big change in North America right now, I thought I would take a deep sky image of the North America Nebula, concentrating on the Cygnus Wall. It's only slightly bigger than the one Trump was planning to build on the north Mexico border!
I don’t think my image is quite as important as the change currently happening 'over the pond' but I thought it would be fairly topical.
This is my first image in 7 long years, as I look to immerse myself back in the world of astrophotography. I have missed the beauty and awe of this hobby, but I have not missed it's frustrations. It's a challenging and deeply technical pursuit at the best of times, with absolutely zero tolerance for mistakes. Also, having a beautiful 10 month old little girl doesn't facilitate many long cold nights, sat in the garden on my own...
This is a 7.5 hour image from 151 integrated, 180 second sub frames taken over 2 nights in my cold and slightly cloudy back garden. A 98% moon didn't help on the first night, but I'm jumping back on the steep learning curve of astrophotography and I might as well start as I mean to go on. Difficult but rewarding times ahead.
I'm very happy with this first image after many years out of the hobby and I am aiming to keep going strong. Hopefully I can get some nice captures overs the next few months, weather permitting...
There are some problems with the stars in this image that I struggled to deal with in post-processing, any constructive criticism is always welcome.
I have also turned this image in to a 'starless' version using StarNet++ which I will post separately in the near future.
Cheers everyone and clear skies!!
Acquisition Equipment
Camera - CANON EOS 60D - Modified
Filter - Astronomik CLS-CCD Filter
Telescope - Sky-Watcher 80ED w/Sky-Watcher .85x Reducer/Flattener
Focal Length - 510mm
F Ratio - F6.3
Mount - Celestron CG-5 Advanced GEM
Guide scope - Celestron 9x50 Finder scope
Guide Camera - QHY 5 Mono
Image Capture Settings
Sub Frames - 151 Light, 100 Dark, 100 Bias, 100 Flat
Exposure - 180 Seconds
ISO - 1600
Total Exposure - 7 hours 33 minutes
Acquisition Software
Capture/Sequence - N.I.N.A. - Nighttime Imaging 'N' Astronomy
Plate Solving - ASTAP - Astrometric STAcking Program
Guiding - PHD2 - Open PHD Guiding
Planetarium - Stellarium
Processing Software
Stacking - DeepSkyStacker
Post-processing - Adobe Photoshop 2021
Post-processing - StarNet++
In the bottom third of the photo, below the Plough.
25 frames with 8 darks stacked in DeepSkyStacker. Each frame F2.8 / ISO1250 / 5s
A wide-field shot of the Dumbbell Nebula (M27) in the constellation Vulpecula taken with a Nikon D5100 DSLR using a lens of only 102mm focal length. This image is best viewed in the Flickr light box (press the "L" key to toggle the light box and optionally click on the "View all sizes" menu item to see the image at its largest size).
This is a stack of eleven images that were exposed for 25 seconds each using a hand-driven, barn-door type tracking mount (two boards, a hinge, and a screw you turn by hand). This relatively short exposure managed to capture some very slight evidence of the red outer edge of the nebula along with the faint bubble extending from the central dumbbell-shaped pattern.
See the image notes to identify a star which has a Jupiter-size planet in its orbit. It has been reported that both water vapor and organic molecules (methane) have been detected in the spectrum of this exoplanet (although the planet itself is believed to be far too hot to support life).
Captured on October 18, 2011 between 9:47PM and 10:05PM PDT from a moderately dark-sky location using a Nikon D5100 DSLR (ISO 2000, 25 second exposure x 11) and a 70mm-300mm AF-S G Zoom Nikkor lens at its 102mm f/4.5 position. Image stack created with DeepSkyStacker using eleven image frames combined with nine dark frames (no flats or bias). Final adjustments done in Photoshop CS3 (curves, levels, color balance and saturation, and image sharpening) with tweaks to the star size and color saturation done using ProDigital Software's Astronomy Tools.
All rights reserved.
img6486to6601_73f43d13s12800iso
There was plenty of cloud coming and going, eventually after spending 1 hour taking lights of 13 seconds each, I eventually got 82 lights that had no cloud.
Deepskystacker processed 73 of them along with 43 darks at 13 seconds each and an ISO of 12800.
The Veil Nebula in Cygnus from my backyard in Los Alamos, New Mexico.
I shot this with a Canon EF 70-200 f/4L on an AstroTrac mount. I've tried using the 70-200 on the AstroTrac in the past, but couldn't get the object of interest in the field of view. This time I tried something different. I put a 35mm lens on the camera, centered the nebula as best I could (which turned out to not be as centered as I would have thought). Then I switched lenses to the 70-200, without moving anything. At 70mm, the nebula was not quite in view, but I played around until it was centered, then zoomed in to 200mm.
Each focal length required a new focus to be able to even see the nebula, so that took a lot of extra time (and the focus is still a bit off). By the time I got the nebula centered and focused at 200mm, it was starting to get pretty close to the horizon. The tracking of the mount is off, and I should have tweaked the polar alignment a bit more, but I was running out of time (and I had already spent so much time on this tartget, I didn't want to switch to another).
I really need to come up with some other method for pointing longer lenses on the AstroTrac. I have a few ideas, but just need to find some time to get out in the grage and make some brackets for attaching finder scopes, etc.
This was also the first time I tried an Astronomik CLS EOS-clip filter, which I think did an amazing job of cutting down the light polution.
Canon 350D modified
Canon EF 70-200 f/4L
AstroTrac TT320 mount
Astronomik CLS EOS-clip filter
20 x 4min @ f/4 and ISO 800
Stacked with DeepSkyStacker
Processed in Photoshop CS3
Reprocessed using StarNet to separate the stars from the background.
Lens: Sigma 135mm Art f/1.8
Camera: Canon 6D (unmodified)
Exposure: 14x2min, ISO 1600
Filter: None
Mount: CG5-ASGT
Captured with BackyardEOS
Registered and stacked with DeepSkyStacker
Photographed from Davis Mountains, TX
Never throw your old photos away, you can always get more out of them later.
The same 20 frames as before, just different tweaks in DeepSkyStacker. Still very noisy, guess I'll add more lights when it returns in winter.
( V1 here: www.flickr.com/photos/thedavewalker/6850838500/ )
Comet 46P/Wirtanen.
Very hazy skies and high clouds, it hadn't quite cleared and its come out in the processing. Found it tricky to balance the colours but think i've got it about as well as I can.
20x 60sec exposures stacked with DSS, 2 methods tried, stacked on comet and stars gave the more pleasing result.
Altair Astro 72EDF
AA183C PROTEC Hypercam
iOptron CEM25P
SharpCap 3.2 Pro
Post processing with DeepSkyStacker, PixInsight and Photoshop CC2019
Orion, Barnard's Loop (H-alpha)
Lens: Canon 50mm f/1.8, stopped down f/4
Filter: Astronomik 12nm H-alpha
Mount: Celestron CG5 ASGT
Camera: Canon 450d mod BCF, 27F
Exposure: 12x15min ISO 400
Guided with PHD, SSAG, 9x50
Captured with BackyardEOS
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX (Orange zone)
Shotdate: October 6th 2013
Camera: Nikon D3x
Optics: NIKKOR 80-400mm f4.5-5.6 @ 400mm f7.1
ISO-speed: 1600
Exposure per sub: 300 seconds
Mount: SkyWatcher NEQ6 Pro
guiding: LVI Smartguider2 on 500mm 90mm APO
Had some rework on it, a little less hard on the stars.
Stacked in DeepSkyStacker:
Stacking mode: Standard
Alignment method: Bicubic
Stacking 41 frames - total exposure: 3 hr 25 mn 6 s
Per Channel Background Calibration: Yes
Method: Auto Adaptive Weighted Average (Iterations = 5)
Offset: 108 frames exposure: 1/8000 s
Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Dark: 28 frames exposure: 5 mn 0 s
Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Flat: 46 frames exposure: 1/2 s
Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)
Post-processing in PixInsight 1.7