100 minutes of integration on M1.

The asteroid left of center is 1997 WN35:

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

I've recalibrated and stacked and worked this image a few times since I first attempted it. Each time I come back with one more bit of knowledge.

This time, I'm still calibrating with Maxim. What's new is that I'm calibrating with 2C increments. Thus, for the 10 lights, there's two sections for calibration. This significantly reduces the over and undercorrection that I was seeing before. Also, it makes the post process a lot easier to manage.

Same details as before:

10 lights total, each at 600 seconds and 400 ISO.

Scope was the Orion 127mm Maksutov Cassegrain guided by a ST80 with SSAG.

64 darks for 14-15C

32 darks for 16C

256 bias

15 flat

Calibrated to make FITs in Maxim. Then debayered and stacked in DSS 3.3.3 beta 47 with kappa 2 5 iterations.

Processed in PI: dynamic crop, dbe, masked stretch, masks made from extrated lightness, these maskes used on atrous and deconvolution, multiscale media transform used on the remaining layers to boost the brightness of the nebulosity, unsharp mask, new mask from lightness, curves used on positive and inverse of this mask to bring up saturation and rgb as well as drive the background lower.

Exported to LR3 for upload.

Here's the platesolve:

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

+0.000009018848 +0.000208680214 -0.282411212779

-0.000208635884 +0.000008952885 +0.388572952899

+0.000000000000 +0.000000000000 +1.000000000000

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

Rotation .......... -92.472 deg

Focal ............. 1665.23 mm

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

Field of view ..... 48' 2.7" x 31' 50.5"

Image center ...... RA: 05 34 32.008 Dec: +21 59 10.65

Image bounds:

top-left ....... RA: 05 33 18.711 Dec: +22 22 28.49

top-right ...... RA: 05 33 28.047 Dec: +21 34 29.13

bottom-left .... RA: 05 35 36.340 Dec: +22 23 50.62

bottom-right ... RA: 05 35 44.903 Dec: +21 35 50.79

Here's a crop of the IC 434 nebula around the star Alnitak, the eastern most star in Orion's belt. To the east of it is rather large and beautiful Flame Nebula. To the south you can see the Horsehead Nebula, a dark nebula that intrudes into the rich hydrogen-alpha region of IC 434 in the shape of horse's head.

EXIF - L-extreme: 180X120" (6h) + Astronomik L-2: 30X20" (30min)

Calibration: Flats - 30+30, 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

Mount: Sky-Watcher EQ6-R Pro

Guiding: Artesky UltraGuide 70 + ZWO ASI120MM Mini

Controller: ZWO ASIair Pro

Electronic focuser: ZWO EAF

Software: DeepSkyStacker + Pixinsight + Photoshop

Location: Medviđa, Croatia

First test of my new AT72EDII. Image is cropped (which is just as well; I don't have a field flattener... yet). You can start to make out the Running Man in the upper part of the frame.

40 subs at 30", ISO800, unguided

20 darks

30 bias

No flats

Shot from my back yard in Bortle 7 skies.

Camera: D90

Telescope: Astro-Tech AT72EDII

Mount: SkyView Pro

Stacked with DeepSkyStacker

Levels/curves/noise/sharpening with Affinity Photo

Unmodified EOS 40D & Pentacon 300mm f4.

3 x 5-minutes at ISO 1000 & 8 x 4-minutes at ISO 1600, f4. Lens piggybacked on C8 telescope for manual guiding. Images registered and stacked in DeepSkyStacker software.

Canon 400d, 130m explorer, deepskystacker. 20 x 90sec sub 10 x dark

M82 in Ursa Major.

C8 EdgeHD at F10

modded Canon XSi at ISO 1600

16x11 minute exposures. 15 flats, 17 darks.

Astronomik CLS-CCD clip in filter

Stacked and processed in PixinsightLE, DeepSkyStacker and Photoshop.

-23C at the time of this shot. Fantastic seeing, with poor transparency.

Canon 550d with CGEM DX 1100HD. Stack of 8 using Deepskystacker. The 8 were taken over two sessions, each at 15 min exposure (with 15 min dark frame) at ISO 800.

Second session had much worse seeing with FWHM at >11 pixels with the first being at <8 pixels.

This is a cropped and rotated image from the M51 Wide Field picture. It was cropped to show more of the galaxy details.

Taken by Doug Spalding on April 10, 2011 near Butler, Missouri using an SBIG8300C camera mounted on a CGE1100 Telescope using Hyperstar (F/2). This is the sum of 5 of 6 ten minute images, stacked using DeepSkyStacker. The image was then processed with Maxim DL and Photoshop CS2.

This was shot vertically... I have it horizontal so it displays larger on the screen.

1 sec. / ISO 5000 / 300mm / f5.6

90 light frames

15 each - dark, flat, bias

Shot with a Nikon D600 on a tripod without an equitorial mount from my driveway in light polluted Parma, Ohio.

Stacked and aligned using Deep Sky Stacker.

Processed in Photoshop CC and Camera Raw.

Spikes added using Star Spikes Pro 3.

Here's a version showing Jupiter with, I think, 3 moons. The inset is @ 100% out of my camera: www.flickr.com/photos/alanstudt/16696092023/

I took this image on a perfectly clear Christmas Eve night. Pictured here is the Andromeda galaxy (M31), and the smaller galaxies, M110 and M32. The Andromeda galaxy is believed to contain up to a trillion suns, and is definitely one of the most amazing objects to view in a dark sky.

12/24/11

Escondido, CA

2x30, 1x45, and 1x10 second exposure ISO 6400

1x11, 1x30, and 1x45 second exposure ISO 3200

Images stacked in DeepSkyStacker, processed in Gimp 2

80mm Skywatcher Refractor LXD75 EQ Mount

Canon Rebel T3 DLSR

Taken 5 Dec 07. Canon 400d, 55mm f/5.6, ISO 1600, 27 x 15 sec exp stacked using DeepSkyStacker. This is unprocessed with a histogram stretch. I will post a processed picture once done.

Orion Nebula

October 22, 2016

Mount: Atlas EQ-G

Scope: SkyWatcher ProED 120mm f7.5

Camera: Canon EOS Rebel T3

Lights: 250 @30sec ISO 800

Darks: 40 @30sec ISO 800

Flats: 40 @1/20 sec ISO 800

Biases: 40 @1/4000 sec ISO 800

Stacked in DeepSkyStacker 3.3.4

Processed in PixInsight and LightRoom

250/1000 Newton telescope, EQ6r pro mount, Sony a6100 camera.

Guiding: 40/700 guiding scope with Asi 120mc guiding camera.

60 x 180s photo + 10 bias, dark and flat frames.

Processed with DeepSkyStacker, Pixinsight, Photoshop

8 light frame + 5 dark frame

Camera: Canon EOS 1000D Baader modified

Lens: Samyang Samyang 14mm f/2.8 IF ED UMC

Focal Length: 14mm

Shutter Speed: 180''

Aperture: f/4

ISO: 800

Post-production: DeepSkyStacker, Lightroom 5, Photoshop CC

Camera: Nikon D50

Exposure: 11 x 240s 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

Camera: Nikon D50

Exposure: 17m 40s (40 frames varying from 5s to 90s) ISO 800 RGB

Filter: Orion Skyglow Imaging Filter

Flattener/Correction: MPCC

Focus Method: Prime focus

Telescope Aperature/Focal Length: 203×812mm

Mount: LXD75

Telescope: Meade 8" Schmidt-Newtonian

Guided: Yes - PHD Guiding

Stacked: DeepSkyStacker

Adjustments: cropped/leveled in Photoshop

Location: Flintstone, GA

Note: The Moon was nearly full when this was taken...

Always wanted to get the Orion, Horsehead, and Flame Nebulas in one shot. Came out better than I expected without taking multiple exposure lengths.

Finally got my HEUIB-II front filter for my Nikon D5100 - first light using it with my Tamron 18-270mm lens. Definitely a fan. This was shot at 140mm, and significantly cropped to eliminate the edges where chromatic aberration, coma and astigmatism were at their worst.

20x 5min subs at 400 iso.

Used my self-modded Nikon D5100. IOptron iEQ30 Pro, guided via 50mm guidescope, SSAG, and PHD2. Stacked in DeepSkyStacker, processed in StarTools.

This is a re-process of a set of images I took 2 weeks ago. This time stacked in DeepSkyStacker and finished off in CS3 but no darks (haven't worked out how to use darks in DSS yet.....).

With this one I eased off darkening the background, concentrating more on bringing out the nebula detail. The brown-ish area on the right is the milky way which hasn't been visible after my earlier processed pictures........

Date:9/8/2009

Location:Brisbane Australia

Imaging Camera: Canon 1000D prime focus

Imaging Scope: Skywatcher 80mm ED Pro

Focal Length: 600mm F7.1

Guide Camera: SSAG

Guide Scope: Orion 80mm F5 Refractor

Guided with PHD Guiding

Mount: Celestron EQ5 GT

Exposure: 15x3 min full colour

ISO: 800

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

20*60ms exp.

Date 11/02/2021

F/1.9

ZWOASI533mc

Celestron Evolution Edge 8HD

AVX mount

Deepskystacker , photoshop.

Not enough data from exp

This photo was submitted as part of the Hoohaa52 Challenge. This week's topic was "Your Choice."

I happened to step outside this night and saw a nice view of the night sky. Having recently been looking at some astrophotography and reading about some of the newer techniques (compared to when I last made a semi-serious effort), I thought I would try a simple shot. This picture is actually a composite of four separate images. It was more about testing the software and learning how it went wrong. For example, I took no flat fields or dark frames. I shot with foreground objects that would blur as I combined images due to the earth's rotation (the software does alignment based on the stars). I purposely left a light on to illuminate the trees though, so that is not a mistake.

This has me itching to try some more shots. However, I did learn that the hotspot problem on my camera has gotten worse so it is even more important that I take those extra shots to help make it easier to subtract out the hotspots. I know this is a problem that can develop over time with digital sensors, but I can't help but wonder why the problem started after getting my camera's sensor cleaned? I did take it in to someone at a camera repair shop, but it still makes me wonder.

This particular view does show the constellation of Scorpius but I am able to detect a deep sky objects as well. In particular, I can see M4, M6, M8 and M20. Here is a chart.

- www.kevin-palmer.com -

This is one of the brightest parts of the Milky Way in the constellation Cygnus. This is a stack of 23 pictures taken with a 50mm lens at 13 seconds, f1.7, iso 3200.

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: 5440x3648

Dates: Sept. 13, 2018

Frames: Badaar Moon and SkyGlow Badaar: 21x300" (gain: 11.00) 23C bin 1x1

Integration: 1.8 hours

Darks: ~30

Flats: ~40

Avg. Moon age: 4.06 days

Avg. Moon phase: 17.52%

Bortle Dark-Sky Scale: 7.00

Mean FWHM: 6.00

Temperature: 20.00

Astrometry.net job: 2251185

RA center: 304.121 degrees

DEC center: 37.616 degrees

Pixel scale: 0.783 arcsec/pixel

Orientation: 280.470 degrees

Field radius: 0.712 degrees

Locations: Home Observatory, Newmarket, Ontario, Canada

Data source: Backyard

More exposure time needed through my slow scope. Starting to get some real detail now.

Date:27/8/2009

Location:Brisbane Australia

Imaging Camera: Canon 1000D prime focus

Imaging Scope: Skywatcher Mak Cas 127mm

Focal Length: 1500mm F12

Guide Camera: SSAG

Guide Scope: Orion 80mm F5 Refractor

Guided with PHD Guiding

Mount: Celestron EQ5 GT

Exposure: 13x6 min full colour

Darks: 4x6 min

ISO: 800

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

Localisation : CastresmallObservatory (Castres, Tarn - France)

Acquisition Date : 2017-09-23

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 : 93 minutes [31 subexposures of 180' Flat & Dark-Flat : 11/9 @ ISO 800]

Temps/Weather : Bonne transparence. Vent nul. T=15°C. Humidité faible.

Constellation : Cygnus / Cygne

Software Used : Astro Photograph Tool (v3.33), DeepSkyStacker 3.3.6, Pixinsight LE, PhotoShop 7, xnview, Noiseware Community Edition

Here an image of another peculiar galaxy, also known as the Crowbar or Hockey Stick Galaxy. It lies within the vicinity of NGC4631. The distortion of NGC4656 as well as that of NGC4631 suggests that both galaxies interacted in the past. Note the very faint extension of stars to the top-right. North is on the right.

Technical data: Imaged from the 27-28/05/2017; 50 x 5 min. exposures through a GSO RC 8" f/8 with a PrimaLuceLab 700Da cooled at -10 degree Celsius; ISO 3200; no light pollution filter; Stacked with DeepSkyStacker in autoadaptive weight averaging mode and further processed in Fitswork4, PS and Noiseware Community.

Total 1hr 10min

H-Alpha - 7x600sec

Stacked in DeepSkyStacker & processed in PS2.

Camera: Atik 314L+ Mono

Filters: Baader H-Alpha 7nm.

Scope: Sky-Watcher Equinox 80ED .

Mount: AZ EQ6-GT goto, PhD guided with Orion 50mm guidescope & SSAG.

M51 - Also known as the whirlpool galaxy.

C6S-GT at F6.3

Canon 40D at ISO 1600

37x4min, 20 darks, 20 flats

Stacked and processed in DeepSkyStacker, PixInsightLE and Photoshop

Noise reduction in NeatImage

Manually, off-axis guided for 12 x 4-minute exposures at ISO 1600, f/4.

Modified EOS 600D & Revelation 12" Newtonian reflector telescope.

Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; final curves & colour-balance adjusted using Paint Shop Pro; noise reduction via CyberLink PhotoDirector.

(I need to add the usual caveat that this fast telescope doesn't give nice round star images towards the edges due to coma).

OTA: Canon 300mm f/4, stopped to 62mm for f/4.8

Camera: ZWO ASI1600MM

Filters: Baader CMOS-Optimized Ultra-Narrowband

Exposure: Ha 14x10min, Oiii 6x10min, RGB 12x1min

Mount: CEM70G

Captured with SGP

Registered and stacked with DeepSkyStacker

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

In the constellation Ursa Major. ~120 images stacked using DeepSkyStacker. 270mm, f2.8, 1.6s, ISO3200, exposure bias +3.

The images were processed to jpeg to enhance the lighter areas before stacking.

M81 06.03.2021 - distance to earth around 11.7 Mio Lj

Nexstar 8 SE w/o wedge / reducer /Canon 1300D astro-modified.

DeepSkyStacker 96 frames; 31 min 40 s

Post processed with PS elements

6 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.

SW Equinox 80ED

Canon 1100d ISO 1600

14 x 60s Subs stacked in DeepSkyStacker & Finished in PS2.

Cencenighe d'agordino - 16/01/10

Transparency: 4/5

Seeing 3/5

Meade SN6 (Schmidt Newton 15cm/6")

Canon 450D Baader unmodified

14x480 Sec RAW 400 ISO

15 Dark - 21 Bias - 21 Flat

Guided with PHD Guiding

Magzero Mz5-m+Orion ShortTube 80 f5

Deepskystacker; Iris, Pixinsight, Photoshop

Notes: Processed in Iris With 15 iterations of RL2 deconvolution

24 lights (30s ISO1600) 10 Darks 20 Flats 20 Bias. Canon EOS 450D prime focus Skywatcher 150 Explorer Newtonian. EQ3-2 Mount. DeepSkyStacker > PixInsight > Photoshop CS5

A barred spiral galaxy in Ursa major.

Celestron C6S-GT at F10

Canon 40D at ISO 1600

42x3min

Stacked in DeepSkyStacker and processed in Pixinsight LE, Gimp and NeatImage.

[08122015]

Orionnebel(M42)

Fuji X-E1

Walimex Pro IF 85mm F1.4

21x

F5.6/ISO6400/2.5s/85mm

DeepSkyStacker

Fitsworks

FaststoneViewer

Canon EOS 450D prime focus Skywatcher 150 Newtonian. 10 lights (20s ISO1600); 10 darks; 20 flats; 20 bias. Processed in DeepSkyStacker, PixInsight and Photoshop CS5

M48 in Hydra. 6th February 2013. Fuji S2 at prime focus of a Celestron NexStar 102 SLT. ISO800. 12x10s frames processed in DeepSkyStacker and Photoshop.

3x20s - 1 Dark - 1 Flat Dark - ISO1600

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

Fuji FinePix S1 Pro

Deep Sky Stacker

14 x 4-minute exposures at ISO 1600, f/4. Pentacon 300mm lens & unmodified EOS 40D, piggybacked on a Celestron C8 telescope for manual guiding. Frames registered and stacked using DeepSkyStacker.

Part of the Virgo Cluster of Galaxies in the constellation Virgo. This is part of the area they call the Realm of Galaxies, between Virgo and Leo, and there are estimated to be up to 2000 galaxies visible in that area of the sky (not to the naked eye though!). The two largest in this image, M84 and M86 - the round blobs to the right - are between 55 and 60 million light years away. Took me ages to get this little lot in the frame!

Still experiencing problems with my mount, so restricted to 26 minutes here having had to ditch a few. I'll give this another go when the mount decides to behave itself.

26 April 2011

200p, EQ5 unguided

Nikon D70 full spectrum prime focus

26 x 60sec

iso 1600

darks, bias and flats.

Stacked in DSS processed in CS5

Kit:

Canon 6d

Canon 70-200 f/4

Home brew barn door tracking mount

DeepSkyStacker 4.1.1

Lightroom 6 / Photoshop

Image:

12 frames (best of 24)

200mm f/4

ISO 1600

123sec/frame

Location

Near Moore Falls, Ontario

(Bortle Scale 3 light pollution)

DSS pinottu, 10x30s. Talosta löytyy myös EQ 3-2 seurantajalusta, jota oli tarkoitus päästä kokeilemaan kotigalaksimme kuvaukseen. Note to self: tarkista seurantamoottorin paristot ennen kun lähdet kuvaamaan tähtiä.

Pentax K-5 II

smc PENTAX-DA 18-55mm F3.5-5.6 AL WR

71x19 seconds stacked using DeepSkyStacker

Post processing in Photoshop

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

AstroTech AT8RC + CCDT67 + Atik383L(-30C) on SkyWatcher AZ-EQ6GT

Astrodon Tru-Balance E-Series Gen2 (with EFW2)

L10x60sec,R5x60sec,G5x60sec,B10x60sec (Total:30min)

Guiding: OAG9 + LodestarX2

StellaImage7, DeepSkyStacker, Photoshop CC2015

Locations: Okayama, Japan

Dec. 2015

Info:

Object: NGC7380 Wizard Nebula

Telescope: Skywatcher explorer 150p f/5 met Baader MPCC

Camera: 450D Full Spectrum

Mount: Heq 5 pro

Guiding: TSOAG9 met Orion SSAG

Imaging time: 47x5mn & 52x10min= 12hr 35mn

Filter: Hutech IDAS LPS-P2

Darks: 40x5min & 21x10min

ISO: 400

Stacked in: DeepSkyStacker (DSS)

Processing: Photoshop CS6

Location: Heesch en Sterrenwacht Halley

Date:28-07-2013, 01-08-2013 & 03-08-2013