View allAll Photos Tagged deepskystacker

Taken using Skywatcher 80ED Pro (.85X FR), Nikon D3300, 102x30" lights (ISO 3200), 100 flats, 110 bias. Stacked in DeepSkyStacker and processed in Photoshop

The Eagle Nebula (catalogued as Messier 16 or M16, and as NGC 6611) is a young open cluster of stars in the constellation Serpens. Its name derives from its shape that is thought to resemble an eagle. It contains several active star-forming gas and dust regions, including the famous "Pillars of Creation", photographed by the Hubble Space Telescope.

 

Optical Rig

MOUNT: Meade LX850 w/ Starlok

SCOPE: Stellarvue SV105-3SV

REDUCER: SFF7-3SV Field Flattener

CAMERA: Canon 550D Full Spectrum Mod by Gary Honis

FILTER: Astronomik L-UV/IR Filter

SOFTWARE: Nebulosity 3

 

Exposures

19 1-min 1600 ISO @ f3.5 (19min)

11 2-min 1600 ISO @ f3.5 (22min)

5 5-min 800 ISO @ f3.5 (25min)

5 5-min 1600 ISO @ f3.5 (25min)

 

Total Exposure Time 91 minutes

 

Image Processing

STACKER: Deep Sky Stacker

RAW EDIT: Adobe Lightroom

 

Operating System - Windows 8.1 64bit

This photo was taken from Silchester, Hampshire, UK (51.35 long, 1.06667 lat).on 24 September 2013 between 9.30pm and 10.00pm.

 

The photo is composed of 20 exposures of 90 seconds at ISO 6400 with four dark frames subtracted and all stacked using deepskystacker.

 

The California Nebula is an emission nebula located in the constellation Perseus. It is almost 2.5° long in the sky and, because of its very low surface brightness, it is extremely difficult to capture. As a result, I'm quite pleased with this imagine.

 

My equipment is a modified Canon EOS 1100D, a Sky Watcher ED80 telescope and an EQ3-2 Mount with an RA motor. I also used a UHC filter to help remove some of the light pollution.

 

orion widefield. taken from the LP capital of the world: oakland, CA.

 

canon 50d (unmodified) and canon 50mm f/1.2L lens, mounted on an orion sky view pro. astronomik CLS clip-in fliter. polar alignment using orion spotting scope. unguided.

 

night 1: 1m45s x 62f at ISO640 and f/3.2. 1h48m total.

night 2: 1m45s x 58f at ISO800 and f/5. 1h38m total.

 

night 1 and night 2 individually stacked in deepskystacker using auto-adaptive weighted average. 20 bias frames and 20 darks each.

 

then, night 1 final image and night 2 final image stacked together using average mode, for a total of 3h26min.

 

postprocessing in pixinsight 1.5:

 

- automatic background extraction to take care of a wicked sky gradient.

- deconvolution

- noise reduction

- 6 separate histogram stretches

 

then, image fusion of the 6 stretches using enfuse. this step is needed because M42 is so bright that it is completely blown out when the image is stretched enough to bring out barnard's loop.

 

final tweaks in lightroom 2.0; a little bit of color balancing and contrast adjustments.

 

lastly another run at noise reduction in noise ninja. if i knew how to use pixinsight better this would probably not be necessary.

 

notes:

 

this is kind of weak sauce and likely what you could get in just a few minutes of imaging from a dark site. also i should probably get a camera with the IR cut filter removed...

 

on night 1 i was anxious to get going since orion only clears the roof of my house about 11:30pm these days. i meant to shoot more to the left to pick up all of barnard's loop, but it was still obscured by my house.

 

it turns out that either i have a bad copy of this lens, or its just not well suited for astrophotography. even stopped down from its native f/1.2 to f/3.2, there is still a LOT of red CA. i may have been slightly misfocused as well. luckily it's just a rental, as it is a very expensive lens.

 

so on night 2 i stopped down to f/5, but cranked the ISO. the CA was reduced, but it's still there. i probably should have gone for longer exposures too. the only problem is that there's so much skyglow that i could probably only do 3 minutes tops even at f/5 without overexposing the bottom of the image.

 

having said all of that i'm sort of amazed to see the slightest bit of witch head goin' on over there.

 

i'll probably continue to work on this widefield over the coming months.

    

Orion's Belt and Sword, M42 Orion Nebula (right) and IC434 Horsehead and NGC2024 Flame Nebulae (left) - widefield (approx 8.5deg across) - 15-Dec-2014 Zeiss Sonnar Apo 135/2 lens on Astrotrac TT320X-AG mount - Canon 60Da camera + Hutech IDAS LPR Filter, 33 frames (240sec) + 22 frames (30sec) 135mm @ f/2.0 ISO400 - Total Exp: 2h23m + 20+27 Darks + 29 EL panel flats, stacked with DeepSkyStacker, post-processed with Photoshop CC/Lightroom/Nebulosity 3

4x20s ISO800

1 Flat Dark - 1 Master Dark

Fuji FinePix S1 Pro

Nikkor 28-80mm F3.3-5.6G at 28mm F3.3

Deep Sky Stacker

(Scusate la compressione degradante del JPEG ma però non riuscivo a caricare il RAW)

Imaging telescopes or lenses: Skywatcher Explorer 130 PDS

 

Imaging cameras: Canon 600 astro-modificated

 

Mounts: Celestron Advanced VX Goto

 

Software: Photoshop, DeepSkyStacker, Fitswork

 

Filters: Astronomik Clip-Filter (EOS) / CLS

 

Resolution: 2268x1511

 

Dates: April 19, 2015

 

Frames: Astronomik Clip-Filter (EOS) / CLS: 110x50" ISO800

 

Integration: 1.5 hours

 

Flats: ~25

 

Avg. Moon age: 0.24 days

 

Avg. Moon phase: 0.07%

 

Bortle Dark-Sky Scale: 7.00

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

Localisation : CastresmallObservatory (Castres, Tarn - France)

Acquisition Date : 2017-01-06

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 : 40 minutes [40 subexposures of 60 sec each (selected from 40)] @ ISO 1600

Calibration : Dark & Bias : 10/11 @ ISO 1600 - Flat & Dark-Flat : 9 @ ISO 400

Temps/Weather : Bonne transparence. Faible vent nul. T= -3°C. Humidité faible.Lune/moon 57 %.

Constellation : Aurigae / Cocher

Software Used : Astro Photograph Tool (v3.13), DeepSkyStacker 3.3.6, Pixinsight LE, PhotoShop 7, xnview, Noiseware Community Edition

 

NGC7635 Bubble Nebula (left) and M52 cluster (right) - 19/10/11 - 8" reflector on HEQ5 mount - Nikon D90 + Coma Corrector + LPR Filter, prime focal, guided with SPC880 webcam FinderGuider and PHD, 39 frames (300sec @ISO1600) + 11 frames (600sec @ ISO800) Total Exp:5h05m + 29 EL panel flats, stacked with DeepSkyStacker

NGC4631 Humpback Whale Galaxy

C-11 @ F/2 Hyperstar CGEM-DX on Pier

OverallQuality = 999.81 in Deepskystacker

41 subs 60 sec iso1600 unguided

5 flats

5 darks

5 bias

Total integration 41 minutes.

Canon 450D Full spectrum - self Mod

Filter - LPS2

seeing - better than normal

2nd time on target

 

Widefield Heart and Soul Nebula (top left), Double Cluster NGC 869, 884 (bottom left), Caldwell 10 open cluster (bottom right), and more...

 

www.astrobin.com/199736/0/

 

Bower 85mm F4

Canon T4i ISO 800 3 mins

 

9x lights

6x darks

 

DeepSkyStacker

iOption SkyTracker

Pixinsight 1.8

Jupiter with Olympus OMD-EM10 MKII and Leica Apo-Telyt 180 f3.4

A few shots that I took at Redmires early this morning have been stacked using DeepSkyStacker to produce this image of part of the Milky Way

Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a grand design spiral galaxy about 12 million light-years away, with a diameter of 90,000 light years, about half the size of the Milky Way, in the constellation Ursa Major. Due to its proximity to Earth, large size, and active galactic nucleus (which harbors a supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy's large size and relatively high brightness also makes it a popular target for amateur astronomers.

 

Messier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major. A member of the M81 Group, it is about five times more luminous than the whole Milky Way and has a center one hundred times more luminous than our galaxy's center. The starburst activity is thought to have been triggered by interaction with neighboring galaxy M81. As the closest starburst galaxy to Earth, M82 is the prototypical example of this galaxy type. SN 2014J, a type Ia supernova, was discovered in the galaxy on 21 January 2014. In 2014, in studying M82, scientists discovered the brightest pulsar yet known, designated M82 X-2.

 

Imaged on 2/22/20.

 

Nikon D5300 Ha modified.

240 second subs at iso 800

IDAS LPS-D1 filter

About 4 hours total integration.

 

Celestron Advanced VX

Explore Scientific ED102 APO

Orion Magnificent Mini Autoguider

Astrophotography Tool, PHD2, Deepskystacker, Startools

 

This target was the first guided target that I images in February 2019.

I re-imaged M81-M82 with a Ha modded dslr, IDAS LPS D1 filter.

Improvement in the nebulous structures in M81 and the hydrogen splash from the core of M82.

First Star - stack ever. Uses Hugin and Stellarium for Skyrotation and then stacked all the Images with Deep Sky Stacker. The Image is made of 20 Pictures + 5 Darkframes and Postprocessed in Lightroom.

 

For me at least, its a good first try in Stacking the Milkyway.

First image from the first night with the new AstroTrac. I only got 9 frames before it was time to go to bed (I don't think it's too bad for so few frames).

 

If you look closely, you can see the North America Nebula (NGC7000), the Veil Nebula, and a all sorts of other stuff.

 

9 x 4 min at ISO 800, f/4

 

Canon 350D (modified)

Canon EF 35mm f/1.4L

AstroTrac TT320(K)

Milky Way in the constellation Perseus

*

Teleskop / Kamera:

Montierung: Star Adventurer

Optik:60mm f/3.5

EF-S60mm f/2.8 Macro USM

Kamera: Canon EOS 650D

Guider: -

Filter:-

 

Aufnahmedaten:

Zahl der Aufnahmen: 9

Brennweite:60 mm

Öffnungsverhältnis: 3,5

Belichtungszeit pro Aufnahme: 30 sek.

Empfindlichkeit ISO-Wert: 1600

Darkframes -

Flats -

 

Bildbearbeitung:

 

DeepSkystacker:

Standard / Light = Durchschnitt / Ausrichtung= Automatsch / 100% der Bilder

 

Photoshop Elements 10:

Tonwertkorrekur, Sättigung

 

I've got a lot to learn about astrophotography post-processing, but this was the best I could do to preserve the faint tail. I don't know if it is wishful thinking or real, but it looks to me like the tail can be seen back almost to below the Pleiades. This was taken with a Tokina AT-X 90mm f2.5 on a Pentax K-5. A few exposures were stacked using DeepSkyStacker (which I'm also just learning to use). The camera and lens were on a Vixen Polarie for tracking.

Canon 5D3 with Celestron's CGEM 1100HD. Taken in the Northwoods of Wisconsin with fair seeing and very dark skys. Used ISO 1600 and a stack of eight (using Deepskystacker). Each exposure was 10 minutes with a dark frame of the same time. Manual guiding was done using Celestron's Off-Axis Guider and Orion's 12.5mm illuminated reticle eyepiece. Hope to get more images in the future for greater stack number to reduce grain.

 

This emission nebula is about 11,000 light-years away and rather dim at Mag 10. Its size is about 15x8 arc-mins (long lenth is 1/2 size of moon). The bright star off-center of the bubble is causing all the action (bubble due to solar winds, red emission due to its radiation). This star is 15 times as massive as the sun.

 

The reds are H II emissions and these occur very close to the cameras' IR filter so are reduced by a factor of 6 or so (no, I am not going to remove the filter on the 5D3!). These IR filters are unfortunate for astrophotography since the best images are H II regions (but OTOH it stops us from seeing too much of people we photograph!). I think Canin is going to be making the 60A, "A" for astronomy, that has the filter removed.

NGC4631 (The Whale or Herring Galaxy)an edge-on spiral galaxy. Its companion in the field of view is NGC4656/57 (The Hockey-Stick or Crowbar Galaxy) which is a highly warped barred spiral galaxy. Both galaxies can be observed in the constellation Canes Venatici (Hunting Dogs).

 

The original images were taken on 27.02.17 with a Canon EOS 760D attached to an 11" Celestron Nexstar scope fitted with a Starizona Hyperstar f/2 lens.

 

Processing with DeepSkyStacker, Photoshp CS4, and NeatImage.

Imaging telescopes: Skywatcher Esprit 100ED APO Triplet

 

Imaging cameras: ZWO 1600MM-COOL

 

Mounts: Sky Watcher NEQ6 pro

 

Guiding telescopes or lenses: Skywatcher Esprit 100ED APO Triplet

 

Guiding cameras: ZWO ASI 120 MC-s

 

Software: Photoshop CC Photoshop · Astrophotography Tool · DeepSkyStacker 4.1.1 64bit Deepskystacker

 

Filters: Chroma 5nm HA · Chroma Sii 3nm · Chroma OIII 3nm

 

Accessory: ZWO EFW 36 mm Filter Wheel

 

Frames:

Chroma 5nm HA: 38x300" (gain: 200.00) -15C bin 1x1

Chroma OIII 3nm: 38x300" (gain: 200.00) -15C bin 1x1

Chroma SII 3nm: 38x300" (gain: 200.00) -15C bin 1x1

Camera: Nikon D90

Lens: Tokina 11-16 F2.8 DX

Exp: 30 sec

ISO: 1600

Software: 25 light frames+dark+bias stacked in DeepSkyStacker

Finish edit in PS.

16x180 s , Canon EF 50/1.4 (f2.2/) iso 1600

DSS + CS6

Managed to drag myself out over the last couple of nights. We've had several clear skies on the trot, but I've been too knackered. Very clear last night, and I wasn't intending to stay up until stupid a.m., but felt I had no choice :)

 

This is just over 2 hours in 60 second chunks, and is an improvement on last years effort, albeit a tad blotchy in places. May give this another go when I get the time.

 

200p/EQ5 unguided

Nikon D70 modded, iso1600, Baader Neodymium Filter

126 x 60 seconds

Darks, flats and bias

Stacked and processed in DSS and CS5

  

Managed to get out last night and have another go at this. Conditions were much better and, to be honest, I expected more, although the extra data has enabled me to do a closer crop. I've put up several iterations of this, and this is probably as good as it's going to get. Reasonably happy now. :)

 

Nikon D70 modded, 55-200 Nikkor at 200mm (cropped), f5.6, 1600iso, Baader Neodymium filter.

26 x 4 min subs for a total of 1 hour 44 mins, unguided EQ5

Darks, flats and bias

Stacked and processed in DSS and CS5.

 

Shall I spike that fat star? ;)

A crude stack of 4x 30 second exposures of Comet Lovejoy.

 

View from Maple Ridge BC, Canada

 

F5.6, 110mm, Canon 60D. Orion Starblast Autotracker Mount. Stacked with Deepsky Stacker.

Constellation: Scorpius

Taken at Blackheath NSW on 12/09/2009

Modified Canon EOS 400D, Orion ED80 (FL600mm) at prime focus.

EQ5 mount autoguided by 3"WO refractor;Philips webcam & PhD

ISO800 3 x 10min subs stacked in DeepSkyStacker with darks.

60 light - 800 iso - 120 sec.

11 dark - 800 iso - 120 sec.

31 offset - 800 iso - 1/8000 sec.

31 flat frame - 800 iso - 1/80 sec.

 

Reflex no modded on eq5 synscan without guide and telescope refractor TSED70Q 474mm 70mm F6.7.

Processed with DeepSkyStacker 3.3.2, Pixinsight, Photoshop CS6

Andromeda Galaxy

20 September 2023 from Singapore

Bortle class 9

Canon EOS 60D

463 x 20 second light frames

25 dark frames

47 flat frames

50 bias frames

Stacked using DeepSkyStacker

ISO 1000

Orion ST120 f5 Achromatic OTA

iOptron CEM-25P mount

SVBony SV205 Guide Camera

PHD 2 guide software

Having learned some processing steps I revisited my previous original TIF file produced by Deep Sky Stacker and the result is this. A lot more detail compared to the original. What do you think?

 

www.theimagetree.co.uk

Orion 150mm Mak

Celestron Deluxe Telecompressor

DGM NPB Filter

Nikon D5100

 

Shot from my red/orange zone backyard.

 

Stacked using DeepSkyStacker, processed in StarTools.

North American and Pelican Nebulae (NGC 7000), with the Cygnus gases.

Nikon D7000 (Unmodded), Nikkor 85mm f/2 @ f/2.8 ISO 800.

Approx 1hr 50 mins of exposure (1min lights). Calibrated with darks, flats and bias. Shot through urban light pollution.

Celestron 1.25" UHC/LPR filter.

SkyWatcher Star Adventurer.

DeepSkyStacker, PixInsight LE and Photoshop.

 

Fujifilm X-T10, XF18-55mm F2.8-4.0 @ F5.6 and 55mm, ISO 3200, 18 x 3 min, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing in GIMP, taken 13 Sept 2018 from my backyard.

 

B 168 and the Cocoon Nebula are also fairly apparent.

 

Oct. 1 update: I removed some of the light pollution gradient.

 

Telescopio: Maksutov Celestron 127 mm

Montatura: Celestron SLT.

Fotocamera: Canon EOS R100 (non modificata).

Pose: 34x15 secondi @3200 ISO.

Elaborazione: DeepSkyStacker, Siril, Pixinsight, Gimp.

M16 - Eagle Nebula in SHO

 

Imaging telescopes: Skywatcher Esprit 100ED APO Triplet

 

Imaging cameras: ZWO 1600MM-COOL

 

Mounts: Sky Watcher NEQ6 pro

 

Guiding telescopes: Skywatcher Esprit 100ED APO Triplet

 

Guiding cameras: ZWO ASI 290MM

 

Software: Photoshop CC Photoshop · Astrophotography Tool · DeepSkyStacker 4.1.1 64bit Deepskystacker

 

Filters: Chroma 5nm HA · Chroma Sii 3nm · Chroma OIII 3nm

 

Accessory: ZWO EFW 36 mm Filter Wheel

 

Frames:

Chroma 5nm HA: 30x600" (gain: 139.00) -15C bin 1x1

Chroma OIII 3nm: 30x600" (gain: 139.00) -15C bin 1x1

Chroma Sii 3nm: 35x900" (gain: 139.00) -15C bin 1x1

 

Integration: 18.8 hours

 

Darks: ~30

 

Flats: ~30

 

Flat darks: ~30

 

Bias: ~30

 

Bortle Dark-Sky Scale: 6.00

 

M33 - The Triangulum Galaxy

 

November 15, 2014. M33, 70 minute stack of 35x120" exposures on a Canon 500D through an Orion ED80.

 

Captured using Backyard EOS, stacked with DeepSkyStacker, post-processed in Photoshop.

Location: Teuge, NL

Camera: Nikon D3x

Optics: Celestron 9,25" Edge HD

Guiding: LVI Smart2Guider

Mount: SkyWatcher NEQ5 Pro

 

Stacked in DeepSkyStacker

 

Stacking mode: Standard

Alignment method: Bicubic

Stacking step 5 frames (ISO: 800) - total exposure: 51 mn 5 s

 

RGB Channels Background Calibration: No

Per Channel Background Calibration: No

 

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

Offset: 120 frames exposure: 1/8000 s

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

Dark: 12 frames exposure: 10 mn 13 s

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

 

Flat: 17 frames exposure: 3 s

Method: Kappa-Sigma (Kappa = 2.00, Iterations = 5)

Nova Sagittarii 2015 No. 2 (an exploding star in Sagittarius, which was discovered on March 15th), photographed from my suburban Brisbane backyard this morning. For this image I stacked 10 x 8 second exposures (each taken using the Canon 6D and EF 35mm f/2 lens @ f/3.2 and 3200 iso) using DeepSkyStacker. It's surprising how much Milky Way detail can be pulled out after stacking, despite the Brisbane light pollution.

Stacked from 10 frames in DeepSkyStacker then processed for color, these plus another 90 were used non-aligned to make a star trails image. I believe each frame was taken around 5 seconds at f/1.4 and ISO 1600 or 2000 for reference. The D800 with the 85mm f/1.4 is just shockingly sharp. I need to figure out how to deal with the vignetting at the corners though as it really makes a difference in the stacking.

30 lights (25s f/3.5 ISO1600); 20 darks; no bias. Canon EOS 450D 18-55mm lens @18mm. DeepSkyStacker > PixInsight > Photoshop

The Veil Nebula (part of it).

 

I used an unmodified Canon 5D, and I'm pretty unimpressed with the length of integration necessary to get this much of an image. Maybe it's time to look into a modified dSLR to capture more of the Hydrogen-alpha light. Although, I'm pretty happy with the amount of detail (check out the large view).

 

32 x 4 minute @ ISO1600

stacked in Deep Sky Stacker

Canon 5D through an Orion ED80

Autoguided with a Meade DSI Pro through an Orion ST80 using PHDGuiding

Celestron CG5 mount

 

Constellation Cygnus as photographed between two tall pines.

The prominent star is pinkish Deneb at bottom center, Also seen are Gamma, Epsilon and Delta Cygni [but not Alberio at the tail; out of frame].

 

Seven images @ 30 seconds per image @ f2 @ ISO400. Processed in DeepSkyStacker.

 

PE: LAB processing: color intensified on A & B layers, brightness / contrast adjusted on L layer. No sharpening or content editing.

 

Comet C/2020 F3 (NEOWISE). 42 images stacked with DeepSkyStacker 4.2.3. Canon 5DIII, Tamron SP AF 70-300mm f/4.0-5.6 Di VC USD, ISO 2500, 300mm, f/5.6, 3.9s.

Second test with a new camera...

Target: NGC1499, California Nebula

OTA: Celestron C8N, 8" Newtonian reflector

Camera: ZWO ASI1600MM

Exposure: H-alpha: 20x10min

Mount: CGEM-DX

Captured with SGP

Registered and stacked with DeepSkyStacker

Photographed from Round Rock TX (light pollution zone: red)

Acquisition details:

OTA: Celestron 8" newtonian reflector, C8N

Filter: Orion Skyglow Imaging filter

Corrector: MPCC

Mount: Celestron CGEM DX

Camera: Canon 450d mod BCF, 34°F

Exposure: 44x4min ISO 400

Guided with PHD, SSAG, 9x50

Captured with BackyardEOS

Registered and stacked with DeepSkyStacker

Photographed from Round Rock TX (Orange zone)

Comet Lemmon (C2012 F6) near the South Celestial Pole in Feb 2013. Reprocesed in Lightroom 5.

The original description is here:

 

"Comet Lemmon (C/2012 F6) near the South Celestial Pole on the evening of 6th Feb 2013. Tripod-mounted Canon 50D and EF 70-200 mm lens. 11 x 30 sec exposures (plus 3 darks) at 200mm, f/4 and 1600 iso stacked using DeepSkyStacker."

 

Camera: Sony A57

Lens: Sony 85mm f/2.8 @f/2.8

Exposure: ~14 minutes-cm2 (4x 30s ISO3200)

Tracker: Sky-Watcher Star Adventurer

Raw converter: RawTherapee

Stacker: Deep Sky Stacker (DSS)

Processing: rnc-color-stretch

Processing: GIMP

50 30 second frames stacked in deepsky stacker.

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