This is a semi-narrowband composition of the Flaming Star Nebula (IC405) and IC410. Since I use a full-spectrum DSLR, I used an Improved DGM NPB filter which allows through the spectrum lines of Hb (486nm) and both Oiii (495.9nm + 500.7nm) in one passband, and Ha (656.3nm) in a second 10nm-wide passband. This allows for decently color-balanced results to start with when using a full-spectrum sensor. I split the raw output stack from DSS into RGB channels (R being virtually all Ha), processed them separately in StarTools, created a synthetic luminance frame, then added the color back in using a bi-color approach with Ha as red and a blended G+B frame as blue, letting StarTools interpolate green.

Shot using self-modded full spectrum Nikon D5100 through Orion ED80 and CCDT67 reducer, on iOptron iEQ30 Pro mount. Used the Improved DGM NPB filter by Omega Optical along with the UV/IR cut filter by Optolong. Guided and dithered using Metaguide. Stacked in DeepSkyStacker, processed in StarTools. Used GIMP 2.9.3 to split RGB channels, and Noiseware for final denoising.

18x 240s @ 1600ISO (calibrated with flats, darks, and bias)

Canon 400D EF 75 - 300mm f/4 - 5.6 lens. Manual Barndoor mount

20 x 45 sec light frames (300mm f5.6 ISO 1600)

10 x 45 sec dark frames

Conditions:

Limiting visual magnitudel 4.0 - 4.5

Transparency - average

Seeing - average

Lots of light polution. Picture taken directly over Edmonton (pop 550,000) about 6 km from downtown in the burbs.

Stacked using DeepSkyStacker

Processed using PixInsight

1. Curve Adjustment to brighten

2. Background Extraction to eliminate vignetting

3. Set light and dark points

4. Play with curves to get what I could out of the photo

I took this photo from inside my house out of my bedroom window. It was -32C outside. I could not polar align the mount so I just guessed where the celestial pole was. Being new to astrophotography (I believe I have only a dozen processed pics) I cannot overstate how enjoyable it is to use a barndoor mount. I do not have a big budget and am saving for a telescope for astrophotography. I have a good camera with the cheap lens, add a couple of pieces of wood with a screw and I am amazed at what can be achieved. Anyone that cannot afford a good mount for widefield photography should build this type of mount. Even with a 300mm lens you can barely detect any star trails. I have modified my barndoor. Just like with a telescope, the mount needs to be sturdy, Any movement will ruin the picture. Rather then use a photo tripod (which was just to shaky) I screwed it directly onto a small table. I also made it so that I can change the angle of the axis incase I cannot find any flat ground. I just use a level to ensure it is somewhat level. I have downloaded a new pic.

Shotdate 02-04-2011

Camera: Nikon D3x

Optics: Celestron 9.25" Edge HD

Guiding: LVI AutoGuider 2

Mount: Sky-Watcher HEQ6 Pro

------------------------------------------------------

DeepSkyStacker 3.3.2

11 frames 300 seconds (ISO: 800) - total exposure: 55 mn 13 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: 14 frames exposure: 5 mn 4 s

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

Flat: 95 frames exposure: 1/30 s

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

------------------------------------------------------

PixInsight 1.6

DynamicBackgroundExtraction

HistogramTransformation 6 time to make an artificial HDR

HDRComposition

Deconvolution

HDRWaveletTransform

HistogramTransformation

ChannelExtraction creating a mask hdr_L

HistogramTransformation hdr_L

ATrousWaveletTransform hdr_L

HistogramTransformation hdr_L

CurvesTransformation with mask hdr_L

ACDNR

HistogramTransformation

------------------------------------------------------

Last weekend was a bright morning, seeing was not all that good, but I had a go at M57, The Ring nebula. Funny when the world around you wakes up. Started setting up at 03:00 started shooting at around 4:00. Used Vega as a guiding star, since guiding worked even when most of the stars where not there anymore.

120s@1600iso, Chiswick 18/01/15

Altair 115ED/APO, AZ-EQ6, Canon 1100D (modified) CLS filter

BackyardEOS, Deepskystacker, Photoshop CS2

Some bright pillars.

KP6 Aurora

Balmy Beach, Ontario, Canada

Yi4K 20 seconds ISO 800 RAW

Dark frame subtraction

DeepSkyStacker

Pixinsight 1.8

No guiding, and I didn't get my mount spot on, so this is is made up of 14 shots, 10 seconds each at various ISOs, and my first go with DeepSkyStacker. So much to learn!

The Large and Small Magellanic Clouds, which are satellite galaxies of the Milky Way. This image was made by stacking 15 x 15 second exposures (plus 6 x dark exposures) taken with the 6D and EF 35mm f/2 lens at f/2.8 and 6400 iso, using DeepSkyStacker.

Well past its best here, but still showing the wide dust tail and long ion tail - the latter is faint but can be seen heading right out of the frame in the 10 o'clock position.

20 x 15-second exposures at f/4 and ISO 3200 in moonlight. Canon EOS 7D and Zeiss Jena 135mm f/3.5 lens on a Vixen Polarie star tracker.

Frames stacked on the comet in DeepSkyStacker software; curves and colour balance adjusted in Canon Photo Professional; noise reduced using Cyberlink PhotoDirector.

Image by Herman Bonnet

14 January 2013, Bloemfontein

Camera: Canon 60Da

Mount: CGEM PRO

Lens: Canon EF 50 mm F4 ISO 1600

10 x 5min light frames

5x bias frames

5x flat frames

5x dark frames

Stacked in DeepskyStacker

Levels and curves in Photoshop

- Canon 7D Mark II

- Orion 8" f/3.9 Astrograph

- Baader MPCC Mark III Coma Corrector

- Orion Atlas Pro Mount

- ZWO ASI 120MC-s guide camera w/ 60mm guide scope

- 22 x 300 second Lights ISO 1600. Dithered each frame

- 10 flats

- No dark or bias

- Captured with BackyardEOS

- Guided with PHD2

- Stacked with DeepSkyStacker

- Processed in Pixinsight

- Imaged on September 2nd 2016 from the Grandview Campground in the White Mountains near Bishop, California.

Imaging telescope or lens:Explore Scientific 102mm ED CF APO triplet ED 102 CF

Imaging camera:Altair Hypercam 183C

Mount:iOptron iEQ30 Pro iOptron

Guiding telescope or lens:Starwave 50mm guidscope Starwave

Guiding camera:Altair Astro GP Cam 130 mono Altair

Focal reducer:Altair Lightwave 0.8 Reducer/Flattener Altair Lightwave

Software:PHD2 2.6.4, APT - Astro Photography Tool APT 2.43, DeepSkyStacker (DSS) Deepskystacker 3.3.2, Photoshop CC 2017 Photoshop

Filter:Badaar Moon and SkyGlow Badaar

Resolution: 5419x3627

Dates: Sept. 11, 2018

Frames: Badaar Moon and SkyGlow Badaar: 13x300" (gain: 11.00) 18C bin 1x1

Integration: 1.1 hours

Darks: ~30

Flats: ~40

Avg. Moon age: 1.96 days

Avg. Moon phase: 4.28%

Bortle Dark-Sky Scale: 7.00

Mean FWHM: 6.50

Temperature: 15.00

Astrometry.net job: 2246003

Locations: Home Observatory, Newmarket, Ontario, Canada

Data source: Backyard

Location :CastresmallObservatory (Castres, 81- France)

Acquisition Date :2016-03-14

Author :Pierre Rougé

Scope :Newton Orion 200/1000 (f/5) plus MPCC Baader

Autoguiding :Skyxatcher Synguider v1.1 & Meade ETX 70/350 mm

Camera :Canon EOS 400D (Digital Rebel Xti) refiltré Astrodon in Side (modded Astrodon in Side)

plus EOS CLIP CLS Astronomik

Exposure :66.0 minutes [22 subexposures of 180 sec each (selected from 22)] @ ISO 2000

Calibration :Dark & bias : 56/56 @ ISO 2000 - Flat & Dark-Flat : 9 @ ISO 400

Weather :Bonne transparence. Faible vent de E à SE. T=17°C humidité faible

Software Used :Astro Photograph Tool v3.00, DeepSkyStacker 3.3.6, PhotoShop CS

My deep sky astrophotography equipment:

- Canon EOS 1200Da (Modded)

- Skywatcher NEQ6 with Rowan Belt Mod

- Skywatcher Evostar ED80 DS Pro

- Astronomik CLS Clip in Filter

- Baader UV/IR Cut Filter (1.25")

- Baader Ha,Sii,Oiii Filters (1.25")

- Altair GPCAM 1 MONO

- Altair 60mm starwave guide scope

- Pegasus Astro Pocket Powerbox

- Astrozap 3" and 4" Dew heater bands

- Amazon Basics USB 2.0 Hub

20m USB 2.0 Extension Cable

- Various adapters and cables

- Controlled by APT (Astrophotography Tool), and Stark Labs PHD2 Guiding

- Processed in DeepSkyStacker (DSS) and Adobe Photoshop CC

It's a bit grainy, but what do you expect with just 3 frames :)

The halo in the image is reflection from my roof, I just have to do this over soon.

Shot date: 28st November 2011

Location: Home, Teuge, NL

Camera: Nikon D3x

Optics: Celestron Edge HD 9,25"

Mount: Skywatcher NEQ6Pro

Guiding: LVI Smartguider 2

------------------------------------------------------

Stacking in DeepskyStacker 3.3.2

DeepSkyStacker settings:

Stacking mode: Standard

Alignment method: Bicubic

Stacking 3 frames (ISO: 800) - total exposure: 15 mn

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: 14 frames exposure: 5 mn

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

Flat: 47 frames exposure: 1/2 s

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

------------------------------------------------------

Postprocessing in PixInsight Core 1.7 Starbuck

DynamicBackgroundExtraction

ColorCalibration

HistogramTransformation

ChannelExtraction: L

HistogramTransformation: L

ATrousWaveletTransform: L

CurvesTransformation: L: Masking

CurvesTransformation

ACDNR

HistogramTransformation

The Crab Nebula is the remnant from the supernova observed by Chinese astronomers in the year 1054. At it's center is a neutron star roughly the mass of the sun, but squished down to the size of a city.

29x 30 second exposures shot with a Canon T1i DSLR at ISO1600 on a 190mm F5.3 Skywatcher Maksutov Newtonian telescope. 14.5 minutes total exposure time.

I shot 54x 30 second exposures, and tossed out nearly half of them due to my unsteady LXD75 mount not tracking the stars sufficiently.

It was shot using the camera's long exposure dark frame noise reduction. I need to shoot some flat frames to remove the vignetting.

stacked picture from 16 lightframes. 16x 25sec ISO/800 f/2.8

Canon EOS M5 + Samyang 12mm f/2.0

astrophoto.lionbit.com/

Bild mit den verwendeten Einstellungen speichern.

M65, M66 and NGC3628.

~150 images stacked using DeepSkyStacker.

Each photo 300mm/f2.8; 1.6s, ISO6400, exposure bias +5, and processed to enhance the highlights before stacking.

Nikon D810 with Sigma 120-300/2.8.

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: 12-13-2011

Seeing: moon glow and cloud haze

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

Lights: 10 x 2min @ 400 ISO, 10 x 5min @ 400

Darks: 10 x 2min @ 400 ISO, 10 x 5min @ 400

Stacking: DeepSkyStacker

Image Processing: Adobe Lightroom 3.6 64bit

OS: Windows 7 64bit

Had a quick break in the clouds. Never got enough exposures so I though I would experiment a little. 3x drizzle in Deepskystacker. It amazes me what can be captured with a 80mm scope.

Technical info about the image:

Object: Messier 27, The Dumbbell Nebula

Mount: HEQ5 Pro

Imaging scope: Equinox 80ED

Imaging FL: 400mm

Imaging camera: unmodified Canon 400D

Lights: 3 x 600 sec (30 min) at ISO 1600

Calibration: no darks, no bias, no flats

Guide scope: KWIQ Autogider

Other details: guided with PHD, calibrated and stacked using Deep Sky Stacker, post-processed in Pixinsight and Photoshop CS3.

M33 Triangulum Galaxy

October 8, 2016

Mount: Atlas EQ-G

Scope: SkyWatcher ProED 120mm f7.5

Camera: Canon EOS Rebel T3

Lights: 350 @45sec 3200 ISO

Darks: 50 @45sec ISO 3200

Flats: 14 @1/4sec ISO 3200

Biases: 50 @1/4000sec ISO 3200

Stacked in DeepSkyStacker 3.3.4

Processed in PixInsight, PhotoShop, and LightRoom

Shotdate 07-03-2011

Camera: Nikon D3x

Optics: Celestron 9.25" Edge HD

Guiding: LVI AutoGuider 2

Mount: Sky-Watcher HEQ6 Pro

--------------------------------------------------------

Stacked in DeepSkyStacker 3.3.2

16 frames 300 seconds (ISO: 800) - total exposure: 1 hr 20 mn 11 s

RGB Channels Background Calibration: Yes

Per Channel Background Calibration: No

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

Offset: 120 frames exposure: 1/8000 s

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

Dark: 8 frames exposure: 5 mn 7 s

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

Flat: 40 frames exposure: 1/4 s

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

--------------------------------------------------------

Processed in PixInsight 1.6

DynamicBackgroundExtraction

BackgroundNeutralization (With Preview Aggregator)

ColorCalibration (Using M51 and 'black' sky as settings)

HistogramTransformation

HDRWaveletTransform (With large-scale HDRWT deringing routine)

ACDNR

HistogramTransformation

ChannelExtraction L (For a lightness mask)

HistogramTransformation on L

Applied the mask L

CurvesTransformation

HistogramTransformation

DarkStructureEnhance

HistogramTransformation

ISS (Left upper corner) superimposed onto the background with M57.

ISS is shot at an exposure of 1/320s ISO 200 and the background is a stack of 20 lights of 30 seconds ISO800.

Camera: Nikon D3x

Optics: NIKKOR F11 f1000mm

Mount: AstroTrac TT320

Stacking in DeepSkyStacker 3.3.2 and postprocessing in PixInsight 1.8

Shotdate: March 6 2011

Camera: D3x

Optics: Celestron 9,25 EdgeHD

DeepSkyStacker

16 frames of 300 seconds (ISO: 800) - total exposure: 1 hr 20 mn 11 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: 8 frames exposure: 5 mn

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

Flat: 40 frames exposure: 1/4 s

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

PixInsight 1.7

DynamicCrop

DynamicBackgroundExtraction

11

ChannelExtraction

ATrousWaveletTransform: Processing view: Autosave_DBE_L

HistogramTransformation: Processing view: Autosave_DBE

Autosave_DBE_L: Masking from swap files...

ColorSaturation: Processing view: Autosave_DBE

ACDNR: Processing view: Autosave_DBE

HDRMultiscaleTransform: Processing view: Autosave_DBE

ChannelExtraction: Processing view: Autosave

HistogramTransformation: Processing view: Autosave_L

ATrousWaveletTransform: Processing view: Autosave_L

CloneStamp: Processing view: Autosave_L to cover the bright cores

HistogramTransformation: Processing view: Autosave_DBE

Autosave_L: Masking from swap files...

OTA: Orion ED80 with Orion field flattener for short refractors

Camera: ZWO ASI1600MM

Exposure: R: 30x1min, G:30x1min, B:30x1min

Mount: CGEM-DX

Captured with SGP

Registered and stacked with DeepSkyStacker

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

The Trifid Nebula (M20) in Sagittarius in Ha-LRGB. Stellarvue SV105SVFT telescope. Starlight xPress Lodestar X2 autoguider, Starlight xPress filter wheel with Astrodon LRGB and Ha 5nm filters. Celestron Advanced VX mount. 20X90sec LRGB subs, 10X240sec H-Alpha subs. Processed in Shapcap, DeepSkyStacker and Photoshop CS2.

Shotdate: 29-1-2014

Camera: Nikon D3x

Optics: 105mm Micro Nikkor @ f4.0

Mount: AstroTrac

ISO speed: 1600

Exposure: 39x125 seconds for a total integration time of 1 hr 22 mn

Stackin in DeepSkyStacker, post-processing in PixInsight 1.8

M102 in Draco. There is some controversy over whether Messier actually observed this galaxy or it was an accidental duplication of M101.

This tiny galaxy is actually a spectacular edge-on galaxy with a magnificent dust lane as seen in professional images. I really only took this image as it's a Messier object I haven't imaged before, it's not very exciting at this scale!

Taken from the Starshed Enterprise on 29th March 2020.

A stack of 5x300s exposures using a QHY22 camera on a TS Imaging Star71 - 71mm f/4.9 Imaging APO telescope. Autoguided using an off-axis guider. CLS filter. Flats, darks and bias applied.

Calibration and stacking done in DeepSkyStacker and post-processing in PixInsight.

Camera: Nikon D50

Exposure: 33 x 120s ISO 1600 RGB

Filter: Orion Skyglow Imaging Filter

Flattener/Correction: Anteres .63x Focal Reducer

Focus Method: Prime focus

Telescope Aperature/Focal Length: 256×2500mm

Telescope: Meade LX200-GPS 10" ACF

Guided: PHD Guiding

Stacked: DeepSkyStacker

Adjustments: cropped/leveled in Photoshop

Location: Flintstone, GA

NGC 6960The Western Veil Nebula

Explore Scientific ED102/Nikon D5300 (Ha mod) with IDAS LPS D-1 filter, w/Stellarview FF/0.80FR. 75% illuminated moon.

42 Light frames at iso 400 for 180seconds

Total integration of just over 2 hours.

Processed in DeepSkyStacker , Startools, Starnet++, and Photoshop.

Tough one! Had to toss half of the subs due to washout from the moonlight. Sky conditions poor measuring a sqm of 18.2 (Bortle 8).

Had fun though!

Shotdate: 26th november 2010

Location: De Cockdorp, Texel, NL

Camera: Nikon D3x

Optics: 80-400mm @ 80mm f7.1

DeepSkyStacker settings:

21 frames 300 second exposure (ISO: 800) - total exposure: 1 hr 45 mn 8 s

RGB Channels Background Calibration: No

Per Channel Background Calibration: Yes

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

Offset: 120 frames (ISO: 800) exposure: 1/8000 s

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

Dark: 20 frames (ISO : 800) exposure: 5 mn 2 s

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

Flat: 42 frames (ISO: 800) exposure: 1/13 s

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

Stacking in DeepskyStacker 3.3.2

Postprocessing in PixInsight 1.6

Processes used: DBE, ColorCal, HistoStretch, HDR, ACDNR, HistoStretch, Masked Curves, HistoStretch.

For the Photoshop version: www.flickr.com/photos/14721988@N02/5220648648/

Finally got round to getting outside without the worry of getting up early for work. We've had some beautiful Evenings this week and another good night is planned tonight.

I took this with a modified Canon 1100D with a CLS filter. 35 5 minute exposures at ISO 1600 on a Skywatcher 80ED Pro.

Processed in Deep Sky stacker and photoshop with 12 dark frames.

Comet C/2014 Q2 (Lovejoy) looking spectacular on 8/01/2015. Taken from the Gold 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 Neatimage and Photoshop.

Lens: Nikon 180mm ED AI-s f/2.8, shot at f/2.8

Camera: Canon 6D (unmodified)

Exposure: 116x1min iso400

Filter: None

Mount: Celestron CGEM DX

Captured with BackyardEOS

Registered and stacked with DeepSkyStacker

Photographed from Round Rock TX (Orange zone)

A stack of 567 1" exposures totalling 9mins of the Orion Nebula in the constellation Orion

ISO 8000

f/5.6

300mm

Stacked in DeepSkyStacker using 20 black frames for noise control and star points

Note, focus is slightly off in this stack

2 batches of data that I recently shot have been stacked using DeepSkyStacker to make this image of NGC2903.

Shotdate: October 5th 2007

Camera: Nikon D50

Optics: Nikkor 60mm Micro @f6.3

Mount: Double-Scotch barndoor (selfmade)

www.flickr.com/photos/14721988@N02/8435606903/

Star-count by DeepSkyStacker is nearly 20.000 stars!

DeepSkyStacker settings:

Lights: 16 frames (ISO: 1600) - Exposure: 48 mn 37 s

Methode: Kappa-Sigma (Kappa = 2.00, Itteration = 5)

Bias: 20 frames (ISO: 1600) exposure: 1/4000 s

Methode: Kappa-Sigma (Kappa = 2.00, Itteration = 5)

Darks: 21 frames (ISO: 1600) exposure: 3 mn 3 s

Methode: Kappa-Sigma (Kappa = 2.00, Itteration = 5)

Flats: 9 frames (ISO: 1600) exposure: 1/20 s

Methode: Kappa-Sigma (Kappa = 2.00, Itteration = 5)

========================

Processing PixInsight 1.7

DynamicCrop: Processing view: Autosave

DynamicBackgroundExtraction: Processing view: Autosave

MaskedStretch: 25 iterations

HistogramTransformation: Processing view: Autosave_DBE

ChannelExtraction: Processing view: Autosave_DBE

HistogramTransformation: Processing view: Autosave_DBE_L

CurvesTransformation: Processing view: Autosave_DBE

Autosave_DBE_L: Masking from swap files...

Another rough shot on the night I got my telescope back from repairs.

13x 30 second exposures, 6.5 minutes total exposure time. ... Obviously could have centered it better to avoid the field curvature.

M57 is a planetary nebula ... a shell of gass puffed off of a star similar to our star but near the end of it's life. A last hoorah before fading out as a white dwarf.

First light for my new ATIK 320E!!! I just received it today, and of course Mother Nature threw her best at me - but I was NOT to be denied (I vowed to shoot the neighboring town's water tower if I had to!) There were puffy clouds going over all night (about 40% cloud cover) together with constant 20mph gusting winds (every 20 or so sec) - not very good conditions for long exposure work.

This caused me to have to reduce my subs...to a ridiculously short 3 seconds each. Yea it's crazy but I took Lum=100x3s, R=50x3s, G=50x3s, and B=50x3. then I threw out all the subs affected by the wind gusts and clouds, which turned out to be about 25% of them. leaving a total of 9min 22s of data split among LRGB channels. Don't get me wrong, this image is nothing to write home about, I know, but for 9min of data using 3s subs, I'm pretty happy with how well the new setup performed. I'm com'n from a Meade DSI2pro and the ATIK320E was completely free of warm/hot pixels, even at 90s subs (which I started out trying to get, but it was completely useless with the wind!) I suppose most of you have decent camera's and are used to this low level of noise, but I am currently amazed at it! Also, if the wind had not been around, I could've taken longer subs and used Ha filter to keep the stars tighter/smaller.

As it was the first night of DSO work with my new equipment, a few items popped up which need some work. First off, my finder scope that I'm going to use as my guidescope came loose as one of the screws stripped out...bummer. Next, I found some slight coma in my image, which i'll have to work out by adjusting the spacing between the scope, f/3.3 reducer, and camera - although this may be difficult as I'm trying to squeeze in a filter wheel. Also a bit of a bug is that despite processing the R, G, and B data exactly the same, somehow the image here has a green cast...is that an expected result (light pollution)? all the images I find online show the core and inner part of the ring as blue, fading to yellow then finally red on the outer part of the ring. Anyhow, I've never done LRGB with DSO targets before, so I'm sure I have some learning ahead of me. If anyone has some advice for getting good color balance, I'd love some help!

Shot with Celestron 8"sct, CGEM mount, f/3.3 focal reducer, Astronomiks LRGB filters, and an ATIK 320E camera Stacked with DeepSkyStacker, LRGB aligned with Registax, post-processing in PSP7.

Taken with

Celestron Nexstar 130 Slt

Canon Eos 10D

Iso 800+1600 10 Darks

Total exposure time 7min 23sec

DeepSkyStacker

Photoshop

Finally moonless and clear sky.

My mount was not working good, and I had a lots of trouble with this, but this has been my wish for a long time to capture. Next time more frames..

Hi Dave, This one I "didn't" apply the Noel Carboni light polution removal tool. I think it's better??????? I also made some flats and cropped it.

Date:22/10/2009

Location:Brisbane Australia

Imaging Camera: Canon 1000D prime focus

Imaging Scope: skywatcher 80mm ED

Focal Length: 600mm F7.1

Guide Camera: SSAG

Guide Scope: Orion 80mm F5 Refractor

Guided with PHD Guiding

Mount: Celestron EQ5 GT

Exposure: 80 min (20x4min) full colour

Darks:10x4min

Flats:21

ISO: 800

Processing: DeepSkyStacker, CS3, Noel Carboni's Astronomy Tools

Latest version of this Summer shot (2013)

Imaging telescopes or lenses: Sky-Watcher Equinox 80ED

Imaging cameras: QHY8L

Mounts: Skywatcher AZ EQ6 GT

Guiding telescopes or lenses: Celestron C6XLT

Guiding cameras: Magzero MZ-5m

Software: DeepSkyStacker, photoshop, Absoft Neat Image

Resolution: 3023x2000

Dates: Sept. 9, 2013, Sept. 15, 2013

Frames: 30x600" -15C bin 1x1

Integration: 5.0 hours

Darks: ~31

Flats: ~16

Bias: ~15

Avg. Moon age: 6.68 days

Avg. Moon phase: 44.24%

RA center: 314.116 degrees

DEC center: 43.998 degrees

Pixel scale: 3.221 arcsec/pixel

Orientation: 173.128 degrees

Field radius: 1.622 degrees

Celestron EdgeHD 8" SCT

Advanced VX Mount (unguided)

Canon EOS T3i (600D)

10 x 30sec subs, ISO 1600, f/10

Stacked in DeepSkyStacker

Finished in Lightroom

Taken July 2013 from Stargate Observatory, MI

Messier 35 and NGC 2158

OTA: Celestron 8" newtonian reflector, C8N

Filter: Orion Skyglow imaging filter

Corrector: MPCC

Mount: Celestron CGEM DX

Camera: Canon 450d mod BCF, 50F

Exposure: 18x4min ISO 400

Guided with PHD, SSAG, TS-OAG9

Captured with BackyardEOS

Registered and stacked with DeepSkyStacker

Photographed from Round Rock TX (Orange zone)

Shotdate: 5th May 2011

Location: Home, Teuge, NL

Camera: Nikon D3x

Optics: Celestron Edge HD 9,25"

Mount: Skywatcher HEQ6 Pro

Guiding: LVI SmartGuide 2 (which was bad this night)

------------------------------------------------------

Stacking in DeepskyStacker 3.3.2

DeepSkyStacker settings:

Stacking mode: Custom Rectangle

Alignment method: Bicubic

Drizzle x2 enabled

Stacking 49 frames 30 seconds (ISO: 6400) - total exposure: 24 mn 30 s

RGB Channels Background Calibration: Yes

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

Offset: 50 frames exposure: 1/8000 s

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

Dark: 40 frames exposure: 30 s

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

Flat: 40 frames exposure: 1/8 s

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

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Postprocessing in PixInsight 1.6

DynamicBackgroundExtraction

BackgroundNeutralization

ColorCalibration

HistogramTransformation

HDRWaveletTransform

ACDNR

HistogramTransformation @ ~0,375 midtone, 5 times and save each step as 32-bit FITS-file

HDRComposition of 5 32-bit FITS frames

HistogramTransformation

ChannelExtraction: making hdr_L mask

HistogramTransformation: hdr_L

CurvesTransformation: Masking with hdr_L

VIEW ORIGINAL SIZE TO SEE ANIMATION!

An animation showing the motion of dwarf planet Ceres and minor planet Vesta against the background stars, over 3 consecutive nights. The bright blue star near the top of the frame is Eta Virginis.

Each frame of this animation is an image obtained by stacking 10x2 sec exposures (taken with my Canon 50D and Tamron 90mm macro lens at f/2.8 and 1600 iso) using DeepSkyStacker.

Using a 6" f/5 Newtonian reflector with a robotic mount. Twenty exposures (15s each; ISO 3200) on my Canon 50D in the direct focus of the telescope, shot using electronic shutter (FRSP) + intervalometer features of Magic Lantern firmware. Assembled using DeepSkyStacker software. Faintest stars on this photo have a magnitude 16.2m (factor of 3 fainter than planet Pluto).

Reprocessed version of the Rosette Nebula.

Capture date: November 3

Scope: Equinox 80mm Apo @ f5 (0.8X WO flattener)

Mount: HEQ5 unguided

Camera: Modified Canon 350, ISO800, IDAS LPS P2 filter

Exposure: 60 minutes, 30x120sec lights, 12 darks, 10 flats

Conditions: average seeing, good transparency

Processing: stacked in DeepSkyStacker, processed in PS CS2

Used deepskystacker, CHDK to make this photograph. 20x32sec exposure, f/3.4, ISO 1600. About 10 dark and flat frames each.

Celestron C80 ED

William Optics FFII (0.8X)

iOptron ZEQ25 (ASCOM)

Canon T3 (full spectrum mod)

Astronomics CLS-CCD

Autoguided SSAG

BackyardEOS v3.0

Originally processed on August 12, 2013 using DeepSkyStacker and Photoshop.

Reprocessed on May 13, 2014 using PixInsight.

4 x 600 second subs

Taken at Byng Inlet, ON.

Second night out at Byng Inlet with the ZEQ25. Dew was a real issue last night as it started to set in around 11pm and the small Goal Zero battery box I brought doesn't last long enough for a full night of imaging with the mount, camera and laptop plugged into it. So I just shot one target tonight.

The ZEQ25 and StarShoot Auto Guider seem to work really well together. I was able to take 10+ minute subs with minimal trailing. As the battery was depleted the mount started to struggle to track so there is some star trails in the last 600 second exposure that is in this stack.

The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). The remarkable shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico. It is sometimes incorrectly called the "North American Nebula"