This is a difficult object to image due to its limited visibility from this latitude (50 deg. North). NGC 253 is about 25 deg. South.

Canon EOS 40D, Celestron C8 telescope. 13 x 5, 6 x 4 & 15 x 2-minute exposures at ISO 1600, f6.3. Images registered and stacked with DeepSkyStacker software.

I posted an earlier version of this object last year, but have since added more light frames and re-processed.

Nikon D7000, Tokina 11-16mm f/2.8. Stack of 14 images, each 10 seconds exposure for a total exposure of 2m30s. Used DeepSkyStacker for stacking, RawTherapee for 16b editing.

Jan. 29, 2014

A Blend of two images

20 x 3 min @ 200 ISO

20 x 30 sec @ 200 ISO

darks & flats & dark flats

Telescope: AstroTech 6" Imaging Newt

Mount: Celestron AVX

Camera: Canon XT Modded

Baader MPCC - III

Baader Sky Glow Filter

Processing: DeepSkyStacker/StarTools

Capture: Backyard EOS

Color Balancing: Regim

Guided: Orion 50mm Mini/QHY5L-II Mono/PHD2

- www.kevin-palmer.com - I finally got around to processing the images of the Andromeda Galaxy from August. I inserted a picture of the moon taken with the same lens for a size comparison. In dark skies (like where this was taken) you can easily see the bright core of the galaxy with the naked eye. The crazy part is the galaxy is at least twice the size shown in this picture. I just don't have the equipment to capture the faint outer portion. There are two more galaxies in this shot if you know where to look. This is a stack of about 100 pictures taken with a Takumar 135mm f2.5 lens. All shot at 4 seconds, f2.5, iso 12800.

Canon 400D. Zenitar 16mm f/2.8. ISO 1600. 23 seconds. f/2.8. 6 light and 6 dark frames stacked in Deep Sky Stacker.

6x180s + DSS

Canon EF 50 mm f1.4 (f2.2)

Crop of the previous photo.

Celestron Nexstar 130 SLT

Canon EOS 10d

10*20 sec. Iso 1600.

DeepSkyStacker.

Photoshop.

- Canon 60D w/ 70-200 f/2.8L @ 200mm f/4

- Celestron AVX Mount

- 17, 190 second iso 1600 lights

- 20 darks

- 20 bias

- Captured in BackyardEOS

- Stacked in DeepSkyStacker

- Processed in PixInsight

Trifid Nebula, a.k.a M20 - the famous nebula in Sagittarius - shot on 1st March 2009 at Yelagiri hills with IITM's 8" f/5 Reflector and a Canon 40D.

Processed using DeepSkyStacker.

Copyright Owners: Astronomy Club, IITM; Akarsh Simha; Sandeep Kakarlapudi

The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated south of Orion's Belt. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across.

Date: 11-25-2011

Scope: Stellarvue SV105-3SV

Mount: Celestron CGEM

Finder: Stellarvue F50M3

Focal Reducer: Stellarvue SFF7-3SV

Filter: Baader Planetarium Moon & Skyglow Filter

Camera: Canon T2i/550D unmodified

Autoguide: Orion Starshoot + PHD

Image Capture: Nebulosity 2

Exposures: 12 x 3min @ 800 iso

Stacking: DeepSkyStacker

Image Processing: Adobe Lightroom 3.5 64bit

OS: Windows 7 64bit

This is a shot from a while back. I went camping with a friend near Cunninghams Gap in the Great Dividing Range. There is very little light pollution there, so I was able to get this shot of the milky way.

Taken with the Pentax Kit DA 18-55mm f3.5-5.6 @ 18mm, f4.0, ISO 1600 around 15 sec exposures. This is 8 shots stacked using Deep Sky Stacker.

Getting better at this exposure stacking stuff...DeepSkyStacker: 190mm, f/2.8, 35 frames, 56 sec, 12800 ISO

This image was made to commemorate the excitment I have experienced when I finally found for the first time this neat tiny nebula, the first deepsky object I have observed. That was also a moment of understanding the fact that visual observations are not my way.

View "Original" size - the Ring Nebula is only 2' across and spans the whole 33 pixels here :)

Aquisition time: 10.11.2012, around 19:20 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 640

Exposures: 9(?)

Processing: contrast was set to "linear", 16 bit TIFF were stacked in DeepSkyStacker, contrast and colors adjusted in Photoshop.

Pushing my astro gear to the limit: Messier 51 (a.k.a. Whirlpool Galaxy) is a 100 billion stars galaxy 23.16 million light years away from Earth (with a tiny size of only 11 x 7 arcmin)...

32 x 1-minute exposures, ISO 3200, f/4. Modified EOS 600D & Revelation 12" Newtonian f/4 reflector telescope.

Frames registered and stacked in DeepSkyStacker software; curves adjusted in Canon Photo Professional; noise reduction in CyberLink PhotoDirector.

First attempt.

Altair Astro Starwave 102ED-R (2017), HEQ5 Pro (Rowan Belt Drive), Berlebach Tripod, Altair IMX178MC Hypercam, SkyWatcher UHC Filter, Altair 0.6x Focal Reducer, Pegasus Stepper Motor Focuser, 25 x 30 Second Exposures. Stacked in DeepSkyStacker. Finished in Photoshop and Lightroom.

Taken using a Sony A3000 and a Fotasy 35mm f/1.7 CCTV lens. Stacked in DeepSkyStacker, farther processing in Photoshop Lightroom.

Shotdate: 15 nov 2012

Camera: Nikon D3x

Optics: Celestron 9,25" Edge HD

Mount: SkyWatcher HEQ6 Pro

Guiding: f500mm F90mm LVI SmartGuider2

Somewhere in my optical train I have some reflection.

Time to find what it is.

.

DeepSkyStacker 3.3.2

17 frames (ISO: 800) - total exposure: 1 hr 19 mn 20 s

RGB Channels Background Calibration: Yes

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: 40 frames exposure: 4 mn 40 s

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

Flat: 17 frames exposure: 3 s

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

.

PixInsight Core 01.07.06.0793 Starbuck (x86_64)

DynamicCrop

Next action done twice (until the extraction L is too light or the stars are getting too big).

ChannelExtraction

ATrousWaveletTransform on L with layer R scale 16 enabled.

HistogramTransformation: Masking from swap file with Midtones value of 0.4.

Next action done eight times, until the image gets nearly saturated.

ChannelExtraction

HistogramTransformation on L if L is getting too bright.

ATrousWaveletTransform on L with layer R and 4, scale 8 and 16 enabled.

HistogramTransformation: Masking from swap file with Midtones value of 0.4.

HDRMultiscaleTransform with six layers.

ChannelExtraction

HistogramTransformation on L to dim the too bright area's.

CurvesTransformation: Masking from swap file

Deconvolution

Emberger Alm (Austria), 09/10/2010

Transparency: 5/5 (SQM-L 21.45, peak 21.60 at 3am)

Seeing 5/5

Temp: -4°

Takahashi FS60-C F6.2

Canon 350D Baader ACF mod

No LP Filters

18×600sec 800ISO

4 Dark - 11 Bias - 9 Flat

Guided with PHD Guiding

Starlight Lodestar+TS OAG9

Nebulosity, Deepskystacker; Pixinsight, Photoshop CS2, no crop

Notes: wonderful, Second elaboration more stretched and saturated, some residual vignetting

Had a few minutes without clouds blocking the view. So i stopped the car and took some pictures.

Stacked (8 Lightframes, 3 Darkframes, 30sec Exposures) with DeepSkyStacker

Walimex Pro (Samyang) 8mm F/3.5 Fisheye @ F/5.6 ISO3200

Hardware:

Skywatcher Evostar 72ED

Canon 700D

ZWO ASI 120mm Mini

9x50 Guidescope

Skywatcher HEQ-5 Pro

Software:

Backyard EOS

PHD2

EQMOD

Stellarium Scope

DeepSkyStacker

Adobe Photoshop

114x300s-Iso800-f/5.8

Canon 6D

Canon 300mm f/4.0 + Canon 1.4x Teleconverter

Vixen Polarie tracking head

40sec exposures @ISO 3200, f/5.6

90x Light Frames

41x Dark Frames

29x Flat Frames

30x Offset Frames

Stacked in DeepSkyStacker

Processed in Photoshop and Lightroom

I was unable to see the Andromeda galaxy that clear night with the naked eye in our light-polluted city suburb but I can on this image (just left of centre)! I had a little help from DeepSkyStacker and Photoshop CS6 to reveal this galaxy and lots of other stars that I did not see!

I took 15 light frames, 20 dark frames at the southwest end of the Old Bahia Honda Bridge, stacked them in Deep Sky Stacker and post-processed in Adobe Lightroom CC.

Milky Way and Large Magellanic Cloud, 10 Exposures, 8mm M.Zuiko PRO f1.8 Fish Eye at f1.8, ISO 6400, 20 seconds, with 1x Dark Frame, Stacked in DeepSkyStacker, with post completed in Lightroom.

A widefield image of the famous Orion Star Region including the Orion Nebula Running Man Nebula Flame Nebula and Horsehead Nebula 23 minutes of exposure time at F2.0 300mm equivalent focal length.

Taken with Olympus OMD EM1 Camera and Zuiko 150mm F2.0 Lens on IOptron Skytracker Mount Processed with Deepskystacker and Neatimage

Not entirely sure this was worth posting, but gives me something to do whilst I wait patiently for the sky to clear.

I took this on 2 September, having waited since 5 August for a clear sky. Transparency was opaque ( had to concentrate really hard to pick out Cygnus!), but I thought what the hell. So I suppose under those conditions, this could be considered a fair result :) (processing aside!)

I'll give this another go when the visibility is better, and the moon and cloud have gone away.

Nikon D70 modded, 55-200 Nikkor at 200mm (cropped), f5.6, 800iso, Baader Neodymium filter.

23 x 5 min subs for a total of 1 hour 55 mins, unguided EQ5

Darks, flats and bias

Stacked and processed in DSS and CS5, with a little help from Noel's tools.

Reprocess

The aurora was to the zenith, east and west and looked like flames lapping in a fire.

KP6 Aurora

Balmy Beach, Ontario, Canada

Yi4K 20 seconds ISO 800 RAW

Dark frame subtraction

DeepSkyStacker

Pixinsight 1.8

This evening Comet C/2018 Y1 (Iwamoto) passed in front of the spiral galaxy NGC 2903. Observing conditions were pretty poor for this initially, with a lot of high cloud and a bright half moon. However, the cloud gradually cleared and I watched the slow movement of the comet over a couple of hours.

This image is a stack of sixty five 10 second exposures for a total exposure on the galaxy of 11 minutes or so. Because the comet was moving relative to the background stars it's smeared out into the greenish line from centre bottom to top right. The line has gaps because some frames weren't good enough to stack.

An untracked/unguided, short-exposure view of the western portion of the constellation Leo the Lion including a faint trace of the 9th-magnitude, barred-spiral galaxy NGC 2903. This galaxy appears just south of the star lambda Leonis (upper right edge of the full image and better seen in the enhanced image insert at the bottom right of the picture).

I suspect that the only thing that I've recorded is the brighter center core of the galaxy, although I can just make out a slight elliptical shape in the image (I think, it's quite small). In any case, stars down to the 12th magnitude were recorded in this image as verified with the Cartes du Ciel star charting software (highly recommended free download).

The sickle-shaped asterism that forms the head of Leo the Lion is also identified and is best viewed in the full-sized image ("View all sizes" under the Flickr light box -- press the "L" key to toggle the light box).

Captured on December 4, 2011 between the hours of 4:54AM and 5:04AM PST from a significantly light-polluted, near-center-city location using a Nikon D5100 DSLR (ISO 3200, 4 seconds x 90 or six minutes total exposure integration time) and a Nikkor 50mm AI-S 1:1.8 lens set to aperture f/4.

Image stack created with DeepSkyStacker (90 "light" frames and 30 "dark" frames) with final adjustments done in Photoshop CS3. Star diffraction spikes were added in Photoshop CS3 using ProDigital Software's Astronomy Tools.

All rights reserved.

The sky was pretty transparent such that a camera can just record the Milky Way in an urban sky. This is three 1-minute exposures stacked with DeepSkyStacker

Location: Copernicus public observatory (Volkssterrenwacht), Overveen, The Netherlands.

Date & time: 16 February 2014, 21.30 Local Time (GMT+1).

Moonlit sky, moon low on the horizon, waning gibbous (98%).

Telescope: TEC 140 refractor (unfortunately not mine...)

Mount: Paramount ME II; tracking only.

Camera: Pentax K-r SLR.

Software used: DeepSkyStacker, PhotoPlus and Noiseware.

10 lightframes @30s, 5 darkframes @30s, 5 biasframes; RAW-format @1600ASA.

Comet Lulin from my driveway. This version used the comet's coma for alignment, so the stars are trailed by the comet's motion. Focus was a bit off, too.

46 x 120s @ f/4 and ISO1600

Stacked with DeepSkyStacker

Canon 450D

Canon EF 100mm f/2.8 Macro USM

AstroTrac TT320

Andromeda Galaxy

Bainbridge, OH

Canon Digital RebelXT 350D

Canon Zoom EF 75-300mm lens

Piggybacked on Meade LXD-75 6" SN w/ UHTC

No Guiding

96 Exposures, 30 secs each (48 min)

f/5, ISO 800, focal length 180mm

9 Darks, 0 Flats

Stacked and Calibrated with DeepSkyStacker

Processed with PhotoShop CS

October 10, 2010

The same 12 exposures, but this time I got hold of Deep Sky Stacker and used that to register and stack all the images. It chucks out a 32-bit TIFF, which I tweaked a bit to produce this image. I'm impressed - pretty sure that's a dust lane just above and right of the nucleus.

First go at Astrophotography! Learned lots of things for next time! But happy with how it turned out! :)

Camera: Olympus OM-D E-M5 Mark II

Lens: Samyang 7.5mm f/3.5

Post Processing: DeepSkyStacker, Photoshop CS6, Adobe Camera Raw

Image Info:

30s, ISO 1600, f/3.5, 10 Stack

Extra:

This is an updated version of a previous upload using better techniques and fixing some mistakes ;)

8" Orion Imaging Newtonian with Modified Rebel XT

15x15sec ISO 100; 15x30sec ISO100; 15x30sec ISO 200; 20x30sec ISO400 ; 20x30sec ISO800

Darks & Flats

Acquired with APT - Astro Photography Tool v2.01 *** www.ideiki.com/astro/

Stacked with DeepSkyStacker 3.3.2 *** deepskystacker.free.fr/english/download.htm

Final Touch with Photo Shop

Greetings!

Based on observations made with the European Southern Observatory telescopes obtained from the ESO/ST-ECF Science Archive Facility.

From WFI

Date: 2005-04-12

A No Name files !

I use 3 images from Rc filter,3 from B filters and 3 from V Filter. Stacked each Filter image using Deepskystacker (after being Tif exported with FitsLiberator), then back again in Fitls Liberator to work and histogram RGB separated, before RGB alignment ad final touchs in Photoshop.

Cya

Andy

M13 - The Great Hercules Cluster. This 11.65 billion year old formation of stars is one of the most impressive globular clusters in the northern hemisphere. Containing over 300,000 stars packed into a 145 light year sphere, the center of this object is 500 times more concentrated than its outer perimeters.

Technical Details:

- Explore Scientific ED80

- Focal length: 480mm

- Celestron AVX mount

- Canon EOS M3 with CHDK

- 11 lights, 5 darks, ISO 800, 20 sec each

- altogether: 3:40 min exposure

- Processed with DeepSkyStacker and Affinity Photo

Did another round of shoots after midnight. The earlier shoot ended prematurely by clouds. At the time I was shooting this series of shots, Sagittarius was about 60 plus degree in the sky and night sky is reasonably clear of clouds & haze. The camera was titled towards the zenith region.

Details

Pentax K-30 & DA12-24

50 x 13 seconds

Stacked using DSS (all light frames)

12mm focal length

ISO640

Taken on 11 July 2013, 1:20am

Tripod: Yes

Equatorial mount: No

First test shot using EQ3-2 mount with a drive.

Exposure: 32 x 40 seconds at ISO 800

Camera: Olympus E-PL1

Lens: CZJ Pancolar 50/1.8 at f/3.5

Processing: DeepSkyStacker + delaboratory

This is an image of Messier object 1, the Crab Nebula. Taken as a part of a test done in the back yard to check the way the PEC was working on the mount. I was also testing to see how well double stacking the Baader UV/IR filter with the Moon and Skyglow filter would work to give tighter stars.

I was pleased with the results of the double stack when using it on the SV4 refractor. On the Mak, it gave better results than expected. I was able to get better looking diffraction spikes for focus so it helped ensure good stars.

The stack is the result of 10 subs of 10 minutes each at 400 ISO using the full spectrum modified Pentax K10D camera on the 127mm Orion Maksutov Cassegrain operating at F13.1.

Only after taking these pictures and then looking at them a day or so later did I realize that there was something moving in the frames. It required a bit of work, but I believe that the object is identified in this list from the Minor Planet Checker:

Object (33078) 1997 WN35 RA 05 34 23.2 DEC +22 20 36 Magnitude 19.9 Motion in Arcsecs/Hr: RA 76+ DEC 0-

The finding of this object in the data meant that I had to get something out of the stack, which meant that I would work it over via trial and error.

Data was calibrated in Maxim using 77 darks, 15 flats, 256 bias. I had some flawed darks so I spent a long time chasing the errors. Stacking was done in DSS. Processing in PixInsight for DBE, background calibration, masked stretch, A Trous wavelets for de noise and sharpening, and a few more curve/histogram stretches before annotation. TIF files exported and then passed through LR3 for publish.

Here's the platesolve results:

Referentiation Matrix (Gnomonic projection = Matrix * Coords[x,y]):

+0.000009000243 +0.000208674202 -0.283327255590

-0.000208561976 +0.000008951188 +0.388714444083

+0.000000000000 +0.000000000000 +1.000000000000

Resolution ........ 0.752 arcsec/pix

Rotation .......... -92.479 deg

Focal ............. 1665.55 mm

Pixel size ........ 6.07 um

Field of view ..... 48' 4.3" x 31' 56.9"

Image center ...... RA: 05 34 32.519 Dec: +21 59 10.01

Image bounds:

top-left ....... RA: 05 33 18.987 Dec: +22 22 28.32

top-right ...... RA: 05 33 28.313 Dec: +21 34 27.73

bottom-left .... RA: 05 35 37.099 Dec: +22 23 50.72

bottom-right ... RA: 05 35 45.650 Dec: +21 35 49.67

Comet C/2013 R1 (Lovejoy)

Exposure: 57 x 30 sec at ISO 1600

Camera: Olympus E-PL1

Telescope: Sky-Watcher 750mm f/5, EQ3-2 mount

Software: DeepSkyStacker, Krita, Darktable

Another test shot of a new setup (EQ3-2 mount with a drive).

Exposure: 20 x 40 seconds at ISO 800

Camera: Olympus E-PL1

Lens: Konica AR 135/3.5 at f/5.6

Processing: DeepSkyStacker + delaboratory

Image taken with a Nikon D750 and Zenithstar 61 scope, mounted to the iOptron SkyGuider Pro.

Stacked in DeepSkyStacker, then processed in Photoshop.

EXIF - L-extreme: 305X120" (10h5min) + Astronomik L-2: 90X120" (3h) - 13h5min total

Calibration: Flats - 60, Darks - 60

Camera: ZWO ASI294MC Pro (cooled to 0°C)

Filters: Optolong L-extreme & Astronomik L-2 Luminance UV/IR Block 1.25"

Main optics: Sky-Watcher Explorer 200P (modified)

Mount: Sky-Watcher EQ6-R Pro

Guiding: Artesky UltraGuide 70 + ZWO ASI120MM Mini

Accessories: ZWO ASIair Pro, ZWO EAF

Software: DeepSkyStacker + Pixinsight + Photoshop

Location: Sibenik, Croatia

---Photo details----

Stacks : 38 frames (+darks and flats)

Exposure Time : 38x2min (1h 16min total) @ ISO 400

Stack program : DeepSkyStacker

Stack mode : Auto Adaptive Weighted Average

Post processing : CS5 for : curves adjustments, Lightroom 4 for local adjustments (contrast, exposure)

---Photo scope---

Camera : Sony SLT-A77

Tube : Skywatcher Explorer 150P

Type : Newton

Focal length : 750 mm

Aperture : F/5

---Guide scope---

Camera : Starlight Xpress Lodestar

Tube : Skywatcher StarTravel-102

Type : Refractor

Focal length : 500 mm

Aperture : F/4.9

---Mount---

Mount : Skywatcher NEQ-6 Pro

---Image details---

Objects

----------

--

Source : dso-browser.com/

Les nébuleuses de l'Amerique du Nord (NGC7000, découverte par Herschel en 1784) et du Pélican (IC5067/IC5070) sont deux nébuleuses en émission de la constellation du Cygne, distantes d'environs 2000 années-lumière.

L'étoile la plus brillante est Deneb.

1h30 (18x5min) de pose, Canon EOS 350D défiltré ("Baader"), Canon EF 70-200/2.8L à 135mm f4, sur monture Losmandy Titan. Prétraitements avec DeepSkyStacker (9 darks, 21 flats, 21 offsets), traitements avec Photoshop. Réalisé à l'observatoire du CALA.

Free for non-commercial use, please notify me of every use !

Libre pour une utilisation non commerciale, merci de me notifier de son utilisation

Image includes recent sub-exposures (taken 26 Jan 2012), plus those from previous sessions over 2 years. Total of just over 3 hours exposure.

Combination of 4 x 10, 7 x 8, 1 x 6, 8 x 5 & 12 x 4-minutes at ISO 1600, f7.5.

All exposures manually, off-axis guided, except the 4-minute ones (unguided). Sub-exposures registered and stacked using DeepSkyStacker; processed using Canon Photo Professional and Noel Carboni's tools in Abobe Photoshop Elements.

Meade 127mm ED telescope & unmodded EOS 40D.