View allAll Photos Tagged Deepskystacker
[edit: reprocessed]
Ho usato solo lo spianatore con il 102 a 700mm, sono molto contento del campo ai bordi :) ma si sono generati due strani flare che erano già comparsi con la foto delle Pleiadi di settembre, chiaramente non ho la benchè minima idea di cosa la generi, forse il filtro skyglow, nelle due foto ho usato due spianatori differenti..
Vabbèè
Telescopi o obiettivi di acquisizione: 102ED
Camere di acquisizione: Canon EOS 450D / Digital Rebel XSi / Kiss X2
Montature: Sky-Watcher EQ6 Pro
Telescopi o obiettivi di guida: 80/600
Camere di guida: LVI Smartguider 2
Riduttori di focale: Tecnosky Spianatore 2"
Software: DeepSkyStacker, Adobe Lightroom 3
Filtri: Orion Skyglow 2" Filter
Luoghi: Cossombrato (AT)
Pose: 15x600"
Integrazione: 2.5 ore
Giorno lunare medio: 6.18 giorni
Fase lunare media: 37.30%
Centro AR: 05:40:32.709
Centro DEC: -02:20:15.945
Campionamento: 4.98 arcsec/pixel
Orientazione: 125.66 gradi
Larghezza del campo: 1.77 gradi
Altezza del campo: 1.18 gradi
Erste Gehversuche mit Deep Sky Fotografie und DSS (Stacker).
Stack von 25 Bilder mit Canon 70-200 /2.8
200mm / f2.8 / 1,6sec / ISO 1250
Aufnahme vom 2019-02-24
Fujifilm X-T10, Samyang 135mm f/2.0 @ f2.0, ISO 1600, 32 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing in GIMP, taken June 2 under Bortle 3/4 skies.
July 31 edit: Reduced green cast.
The faint outer halo is just visible, bringing out the dark ring around the brighter centre of the galaxy.
34 x 1-minute unguided exposures at ISO 6400. Modified EOS 600D & Revelation 12" f/4 Newtonian reflector telescope.
Frames registered and stacked in DeepSkyStacker software; curves adjusted in Canon Photo Professional; noise reduction in CyberLink PhotoDirector.
For this image i wanted to find a workflow with a minimum number of processing steps. I used DeepSkyStacker with the auto white balance (raw) setting so the raw stack already looked good. In Pixinsight the autostretch was transferred to the histogram function followed by slight curves and green reduction with (0.8) SCNR (So no color calibration, no masking, no noise reduction etc.). Image data: Esprit 100 f5.5 refractor and Canon 6Da, 45 x 300 sec iso1600 with 25 flats and 65 biasframes. This is a small crop of the full field of view.
Knight Observatory Tomar.
19 x 1-minute unguided exposures at f/4 and ISO 3200.
Using more exposures helps reduce digital noise, so I also included 3 x 3-minute manually off-axis guided exposures at ISO 1600, f/4, taken in 2015.
Modified EOS 600D & Revelation 12" Newtonian reflector telescope.
Registered and stacked using DeepSkyStacker; curves adjusted in Canon Photo Professional; noise reduction via CyberLink PhotoDirector.
Imaging telescopes or lenses: Skywatcher ED 80/600
Mounts: Celestron Advanced VX Goto
Guiding cameras: Canon 600 astro-modificated
Focal reducers: TS 2" PHOTOLINE 0.8x reducer / flattener
Software: DeepSkyStacker, Photoshop, Fitswork
Filters: Hutech IDAS LPS-D1 EOS
Resolution: 2268x1604
Dates: Dec. 6, 2015
Frames: Hutech IDAS LPS-D1 EOS: 47x55" ISO800
Integration: 0.7 hours
Flats: ~15
Avg. Moon age: 24.51 days
Avg. Moon phase: 25.88%
Bortle Dark-Sky Scale: 7.00
Temperature: 8.00
Used my 150mm apo triplet and 1000D dslr with light pollution filter to collect 3 panels of 6 subs at 5 minutes each at ISO 1600 to create this mosaic of the Pleiades star cluster. Stacked and dark frame calibrated in Deepskystacker,mosaic stitched using IMerge and processed in Photoshop.
Image taken Midnight onwards 5/11/16
12/4/2018 12:46-1:41am MST
Grand Mesa Observatory
14x 240sec
Processing: Photoshop CC, PixInsight
Stacking: DeepSkyStacker
Camera: QHY367C One Shot Color CMOS
Pixel Size: 4.88x4.88
Image Scale (1x1): 1.55 arcsec/pixel
FOV: 127.3 x 190.1 arcmin
Optics: Takahashi FSQ130
Aperture: 130mm
Focal Length: 650mm
Focal Ratio: F5
Guiding: Stellarview 50mm
Mount: Paramount ME
150 ED Apo f7 triplet,Canon 1000D with UHC filter was used to capture 8 subframes at 16 minutes apiece,stacked in Deepskystacker and processed in Photoshop. Image taken 3/12/16
The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region located in Sagittarius.
Color, cropped image. The color saturation suffered in this image due to lack of an IR filter. That said, tracking was spot on with the image centered nicely in the frame and the surrounding stars are nice and round.
MOUNT: Meade LX850 w/ Starlok
SCOPE: Stellarvue SV105-3SV, 105mm APO Triplet
REDUCER: SFF7-3SV Field Flattener
CAMERA: Canon 550D Full Spectrum Mod by Gary Honis
FILTER: None
CAPTURE: Backyard EOS v3.1.8
STACKING: DeepSkyStacker
RAW EDIT: Adobe Lightroom v4.4
OS: Windows 10
Total Imaging Time: 1:32:30
LIGHTS
20 1-minute @ ISO 1600
11 2-minute @ ISO 1600
10 5-minute @ ISO 800
DARKS
5 1-minute @ ISO 1600
5 2-minute @ ISO 1600
5 3-minute @ ISO 1600
5 5-minute @ ISO 1600
3 10-minute @ ISO 1600
4 15-minute @ ISO 1600
Framing is a little out as this was shot using 2 scopes.
H-alpha data captured by Mick Hyde (9 Feb 14).
H-Alpha - 12x300s & 7x20s
Green - 21x120s & 21x15s (2x2)
Blue - 15x120s & 15x15s (2x2)
Stacked in DeepSkyStacker & processed in PS2.
Camera: Atik 490ex Mono
Filters: Baader H-Alpha 7nm, GB.
Scope: (G&B) Sky-Watcher Equinox 80ED .
Mount: AZ EQ6-GT goto, PhD guided with Orion 50mm guidescope & SSAG.
grazie ad Ale ed a Edo, per l'ospitalita', l'assistenza e la compagnia!! :) un bel regalo di compleanno ragassi!
Telescopi o obiettivi di acquisizione: APO Triplet 130/910 mm
Camere di acquisizione: Canon / CentralDS EOS Astro 50D
Montature: Sky-Watcher EQ6 Pro
Telescopi o obiettivi di guida: 80/600
Camere di guida: lacerta mgen2
Riduttori di focale: Flattener 2"
Software: DeepSkyStacker, Adobe Lightroom 3, Noel Carboni's Astro Tools for PhotoShop
Filtri: Orion SkyGlow 2" Imaging Filter
Risoluzione: 1600x1066
Date: 07 giugno 2013, 08 giugno 2013
Luoghi: Refrancore
Pose:
Orion SkyGlow 2" Imaging Filter: 10x240" ISO1600 bin 1x1
Orion SkyGlow 2" Imaging Filter: 18x360" ISO1600 bin 1x1
Integrazione: 2.5 ore
Dark: ~12
Flat: ~20
A spiral galaxy in the constellation Camelopardalis.
It goes by the nickname of the Hidden galaxy as it's a very difficult target for visual and for photography. This is due to it lying pretty much in the same line of sight as the Milky Way and all it's bright stars and dust lanes. Except IC342 which is about 11 million light years further on.
Boring techie bit:
Skywatcher Quattro 8" Newtonian Reflector steel tube with the f4 aplanatic coma corrector, Skywatcher EQ6 R pro mount, Altair Starwave 50mm guide scope, ZWO asi120mm guide camera mini, ZWO asi533mc pro cooled to -10c gain 100, Optolong L'enhance 2" filter, ZWO asiair plus.
Darks, Flats & Bias.
Stacked with DeepSkyStacker and processed in StarTools & Affinity Photo.
An nearby spiral galaxy, only 12 million light-years distant. The active nucleus harbors a supermassive black hole , estimated at 70 million times as massive as our Sun.
This was a test to see what this camera would show of deep-sky objects.
ZWO ASI290mm camera, Explore Scientific 3x Barlow lens, Optolong CLS filter, Explore Scientific ED 80 APO refractor, Celestron Advanced VX EQ mount.
21 45-sec frames
Stacked with DeepSkyStacker, dark frames applied
Post-processing with Photoshop CC 2017.
28 x 5 minutes, ISO 800
Sensor temp: +39-43C
60 darks, 60 flats, 100 bias
Equipment: Canon t2i, Orion 8" Astrograph, Atlas EQ-G
Guiding: SSAG, Orion ST80, PHD
Accessories: Astronomik CLS, Baader MPCC
Acquisition: EQMOD, Cartes du Ciel, Backyard EOS
Processing: DeepSkyStacker, Pixinsight, Photoshop CS6 (for mask fine-tuning)
M56 Globular star cluster
About 33,000 light years from us. This star cluster was first spotted by Charles Messier in January of 1779.
I used my Canon 1100D on my 150mm Newtonian
Mount is a HEQ5 pro goto, unguided.
I used 140 light frames of 40 seconds, at ISO 800
80 Bias, 40 Darks & 40 Flats.
Stacked with DeepSkyStacker, then Processed with StarTools.
The time is now! I've heard the requests and for my latest calendar, it is exclusively astrophotography as shot through my telescope/camera setup. I'll unveil all 12 months in the coming days, but for today, I'll open up preorders and share with you a brand new photo that made the cut. More on this photo after the calendar details:
If you want to preorder a 2022 calendar, please fill out this form forms.gle/cNdv9go1NcBQp4tC8 . The calendars will be $18 for preorders and then $20 after November 1. The price includes shipping to anywhere in the US/Canada. The calendars are individually wrapped and all photos are ones that I have shot with my telescope/camera setup of amazing celestial views. I'll be sharing some more of exactly what you can expect next week.
As for this new image... you are looking at NGC 7380, the Wizard Nebula! I first shot this about a year ago when I was still figuring out a lot with capturing/processing narrowband astrophotography, and I just re-shot it a few nights ago and gave it a full new re-process. The final result is a bit more true to how the colors actually appear to the naked eye, as far as the emissions of the various gases involved. The image came from a little over 5 hours of narrowband exposures (105 minutes in Hydrogen-Alpha, Sulfur-ii, and Oxygen-iii separately) in the same night. The individual exposures were 5 minutes long and they were stacked in DeepSkyStacker before being combined in PixInsight.
I think I stopped the aperture down a bit too much on this one, causing the diffraction spikes around the Pleiades's brightest stars. Next time, I'll try f/5.6 or f/6.3.
Taken with a Sigma AF 70-300mm f/4-5.6 APO DG at 133mm and f/8, Canon T3i DSLR, and Celestron Advanced VX mount. Consists of 34 light and 30 dark frames, each a 90-second exposure at ISO 1600, and 21 flat frames. Captured with BackyardEOS, stacked in DeepSkyStacker, and processed in Photoshop.
More commonly known as The Dumbell Nebula. Sometimes as the Apple core or egg timer as well.
M27 is a planetary nebula over 1,200 light years away in the constellation of Vulpecula. Discovered by Charles Messier in 1764 it's thought to be the first planetary nebula discovered.
They were given the title planetary nebulae by William Herschel, who thought that these kind of objects looked small and round like a planet.
Boring techie bit:
Celestron Nexstar 8SE telescope, Skywatcher EQ6 R pro mount, RVO 32mm mini guide scope, ZWO asi120mm mini guide camera, ZWO asi533mc pro cooled to -10c gain 0, ZWO asiair plus.
Darks, Flats & Bias.
Stacked with DeepSkyStacker and processed in Affinity Photo.
Photo credit myself & Stuart Keane.
Data captured at www.astronomycentre.org.uk
This is my second attempt at processing this image, I think the result looks better than my last try. I still need more data though.
Canon 60Da
Tamron 24-70mm at 70mm
Astronomik CLS EOS Clip Filter
22x 120 second exposures
ISO 3200 at f/2.8
Tracked using an AstroTrac TT320X-AG (no guiding)
Stacked in Deep Sky Stacker and processed in Photoshop.
Taken in Cabo de Gata National Park in Spain, May 2014.
The center of this view was barely fifteen degrees above the horizon when I started imaging it, I was killing time waiting for my main target to rise in to view.
22 Lights
30 Darks
30 Flats
100 x 4' subs, stacked in DeepSkyStacker. No dark, flat, or bias frames (I really need to do that to up my game). Curving dust tail, with the ion tail a bit dimmer rotated just to the left of the dust tail. Nice striations in the dust tail.
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy 21 million light-years from Earth in the constellation Ursa Major. The giant spiral disk of stars, dust and gas is 170,000 light-years across — nearly twice the diameter of our galaxy, the Milky Way. M101 is estimated to contain at least one trillion stars. The galaxy’s spiral arms are sprinkled with large regions of star-forming nebulas. These nebulas are areas of intense star formation within giant molecular hydrogen clouds. Brilliant, young clusters of hot, blue, newborn stars trace out the spiral arms. (ref: Wikipedia and NASA)
Observation data (J2000 epoch)
Constellation: Ursa Major
Right ascension: 14h 03m 12.6s
Declination: +54° 20′ 57″
Distance: 20.9 ± 1.8 Mly
Apparent magnitude (V): 7.9
Tech Specs: Orion 8” RC Telescope, ZWO ASI2600MC camera running at -10F, 47 x 60 seconds, Celestron CGEM-DX pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: February 5, 2024. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
As requested by some fellow imagers, here's a look at what each individual narrowband channel has to offer in this part of the sky.
3 panel narrowband mosaic. Exposure times for each panel: 24X600"Ha, 24X600"OIII, and 24X600"SII.
Equipment used:
Canon 85mm f1.8 lens at f4, ZWO ASI183mm camera, AP900 mount, DeepSkyStacker, PixInsight star alignment, Photoshop levels, curves, blending, guided with ZWO174mm and Stellarvue SVR90T.
Pleiades M45 last night. Moon was out, so hard to get detail! 🔭
Stacked 20 lights, iso 800, 180seconds and processed in DeepSkyStacker and Photoshop. Nikon z 50 and Skywatcher Esprit 100.
Canon 135mm f/2 prime lens closed down to f/2.8,SX Trius Pro 694 mono ccd with Baader 7nm Ha filter (1.25") riding on CEM60.
Two pane mosaic consists of 12-18 ten minute subs stacked in Deepskystacker,mosaic stitched using Microsoft ICE and processed in PS CS2.
Taken 22/02/27
Location: Killygordon, Co. Donegal, Ireland.
Time: 20:30-22:00
Date: 14 March 2010
Target: Orion's Belts (inculding M42 and the Horsehead Nebula)
Exposures: Seven ten minute exposures (6 Darks). 70mins total exposure. Combined with 15 x 30sec and 30 x 15sec exposures for the core of the Orion nebula.
Equipment: Mount- Celestron CG4 (unguided)
Camera- Unmodified Canon 1000D
Lens- 70-300mm Sigma APO working at 135mm
Additional- Astronomik cls clip LP filter.
Stacking & Processing: DeepSkyStacker & Photoshop 7.0
Finally was successful in this shooting session after two years of trials and errors with countless fails of guiding and imaging. I was able to acquire a little over 1h10min for this image.
This was the very first DSO image I've seen when I was a kid on NASA's APOD, it amazed me on the first sight.
Clear skies everybody!
While I'm waiting for a new 12mm f2.0 lens, I thought I'd test my new Fuji X-M1 with the kit zoom under the light polluted skies of suburban Melbourne at ISO 6400. Then I pushed and played as much as I dared.
It's not realistic, but it is remarkable what a digital camera and software can do these days.
A photo of our galaxy, the Milky Way, taken just outside our chalet at Crystal Springs Mountain Lodge in Mpumalanga, South Africa. It's amazing what a dark, clear sky can show (along with a little work on the computer). This is 10 photos that I took (each 30 seconds exposure time), stacked together (using Deep Sky Stacker), and then edited a bit in GIMP. My first real Milky Way shot!
If anyone is curious about how I went about getting this shot, I wrote a "how-to" here: digital-photography-school.com/forum/how-i-took/197256-mi...
there the stars are born from the Cocoons.
Covering the large portion of the Milky Way, which is the disk subsystem of our Galaxy, constellation Cygnus houses a lot of gaseous and dusty entities, both bright and dark. This image features among others the tiny bright Cocoon nebula (IC 5146/ Caldwell 19) which is a star formation region and much more prominent dark filament of Barnard 128 (the Snake nebula).
2048 size is quite viewable :)
Aquisition time: 10-11.08.2013 between 23:45 and 01:30 MSK (UTC+4)
Equipment:
Canon EF-S 60mm f/2.8 macro USM lens and Baader Planetarium 2" UHC filter mounted in front of the lens via step-down ring attached to Canon EOS 60D running Magic Lantern 2.3 firmware override riding on Vixen Polarie tracking platform over photo-tripod (alltogether codenamed "Anywhere Is, SWANS configuration").
Aperture 21,4 mm
Focal length 60 mm
Tv = 60 seconds
Av = f/2.8
ISO 4000
Exposures: 58 (plus 27 dark frames and 10 offset frames plus 2 fake flat-field frames).
Processing: Contrast was set to "linear" for all images in Canon DPP and 16-bit outputs were fed to DSS and stacked in Maximum Enthropy mode.
16-bit stacking result was processed in Photoshop with AutoContrast and Levels (namely gamma was set to 3,5) and Curves (skewed sigmoid curve was applied).
Note: I had to crop away some portion at the bottom of the image. The stars were really ugly there.
Comet ATLAS C/2019 Y4, discovered in December 2019, has been quickly increasing in brightness over the last few months, and many of us hope that trend will continue; past projections put it as reaching naked-eye brightness this April or May. However, it's brightness has recently plateaued around magnitude +8. That and an elongated nucleus suggest that it might be disintegrating.
It was likely about magnitude +8 when I photographed it last night, April 9th, near Star 42 Camelopardalis. I'm not sure what the faint nebulosity is to the lower left of the comet: either Dark Nebula HSVMT 25, integrated flux nebula (IFN), or it's simply an artifact. Galaxy NGC 2366 is also apparent in the upper right corner.
Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 50 x 30 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker (used comet stacking mode so stars and comet were stacked separately and then combined), editing with Astro Pixel Processor and GIMP, taken in the 30 minute-window between astronomic dusk and the rise of the 93% illuminated moon on April 9, 2020 under Bortle 3/4 skies.
Taken on a beach a short walk away, as it's a darker location than at home and with an unobstructed southern horizon over the sea. The conditions, were rather hazy, however, with a thick, dark haze close to the horizon. From home, this haze would have been lit by the floodlights from a car dealership some distance to the south, so the beach was far better in these conditions.
10 x 2-minute exposures at f/2 and ISO 1600; modified Canon EOS 600D & Samyang 24mm f/1.4 lens, on a Vixen Polarie star tracker.
Frames 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.
'Ave anuvver one :)
Did this the same session as The Ring Nebula. Two images in one session - whatever next? :)
M103 aka NGC 581 is one of the most distant open clusters known, with distances of 8,000 to 9,500 light years from Earth and ranging about 15 light years apart. The cluster is about 25 million years old. Thus spake Wiki.
To me, it's number 27 :)
Taken with a TMB92L, Canon T3i DSLR, and Celestron CG-4 mount. Consists of 34 light and 20 dark frames, each a 45-second exposure at ISO 800, stacked in DeepSkyStacker and processed in Photoshop.
First light with my first ever dedicated astronomy camera. It was a trial and error evening. After a lot of hair pulling and youtube watching, I managed to get most of the equipment talking to each other. So I decided to try it out on an easy target, Messier 82 the Cigar galaxy. I won't bore you with M82 facts . . . this time. If you do want to know, I did post a picture of M82 not long ago taken with my DSLR. If you flick back through some of my recent pictures you'll find some M82 facts there.
And now for the really boring bit, equipment used:
Skywatcher Quattro 8" Newtonian Reflector steel tube with the f4 aplanatic coma corrector, Skywatcher EQ6 R pro mount, Altair Starwave 50mm guide scope, ZWO asi120mm guide camera mini, ZWO asi533mc pro cooled to -10c, ZWO asiair plus.
20, 3 minute exposures bin 1 gain 0, stacked with darks, flats and bias.
DeepSkyStacker, StarTools and Affinity Photo used for processing.
M106 36 x 600 secs in Lum. Added 4 hours to my last image flic.kr/p/sazkxL
Optics: Orion Optics CT8 F4.5 fitted with a Baader Mark-III MPCC Coma Corrector.
Camera: Xpress Trius SX-694 Mono Cooled to -20C
Guiding: OAG witha Lodestar X2
Filter: Baader Lum
Mount: Skywatcher AZ EQ6-GT EQ & Alt-Az Mount connected to the Sky X and Eqmod via HitecAstro EQDIR adapter
Image Acquisition: Sequence Generator Pro
Stacking and Calibrating: Deepskystacker
Processing: Pixinsight 1.8, Photoshop CC
My first attempt to capture Orion nebula
Canon 500D
Sigma 120-400 @400mm
ISO 800
f 7.1
frames of 60 - 45 - 30 seconds
total exposure about 55 minutes
dark bias flat
28x30sec at ISO 12800
180mm f/4
Nikon D750
Clear sky, no moon, new camera, and news of a comet in Taurus -- who cares if it's a little cold out there....
Posted to Slider's Sunday, even though the post-processing is relatively mild by that group's standards. In particular, let me emphasize that Lovejoy and the Pleiades really did share this little section of the sky. But posted to SS because it used a new (to me) color processing strategy.
Averaged the multiple (28) images in DeepSkyStacker, and imported the result into the Gimp, along with -- and this was the innovation -- an extra copy of the last exposure as a new layer. I roughly white-balanced out the skyglow in the new layer, smoothed it, bumped up the contrast (which has the effect of increasing saturation), and made this the "color" layer to emphasize the actual green and blue colors of the comet and stars.
Startrails at Barronal Beach, Cabo de Gata, Spain.
Canon 60D
14mm Samyang at f/2.8
30 second exposures at ISO 800
160 frames stacked in Startrails.de
The Exif data is wrong because this lens doesn't communicate with the camera.
Equipment:
Telescope: Orion XT10i on Skywatcher EQ6 Pro
Camera: Canon 550D unmodified + Baader MPCC
Guiding: Orion Magnificent Mini Autoguider + PHD Guiding
Software: APT, DeepSkyStacker, PixInsight
Images: 120x30sec ISO1600 Lights; 50x Darks; 50x Bias; 50x Flats
Telescopi o obiettivi di acquisizione: Celestron 127/1500 Maksutov-Cassegrain
Camere di acquisizione: Svbony SV105
Montature: Celestron SLT
Software: ASTROSURFACE · PIPP x64 2.5.9 · DeepSkyStacker
Data:09 Novembre 2020
Ora: 12:43
Pose: 250
FPS: 15,00000
Lunghezza focale: 1500
Seeing: 3
Trasparenza: 7
This is the galaxy designated NGC 5961 located in the constellation Corona Borealis. Inside the galaxy is the supernova 2025ngs that I imaged on July 4, 2025. My magnitude estimate based on 60 minutes of collected data is V16.1.
Tech Specs: Meade 12” LX-90 SCT Telescope, Antares Focal Reducer, ZWO ASI2600MC camera running at 0F, 60 x 60 seconds, Celestron CGX-L pier mounted, ZWO EAF and ASIAir Pro, processed in Tycho Tracker and PixInsight. Image Date: July 4, 2025. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Fujifilm X-T10, Samyang 135mm f/2.0 @ f2.0, ISO 1600, 40 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing in GIMP, taken July 31 under Bortle 3/4 skies. Conditions seemed about perfect, Sadr was nearly directly overhead, and my focus was dead-on, making processing simple.
Notable nebulae contained in this extent are the Gamma Cygni Nebula around Sadr and the Crescent Nebula near the center.
Taken on my third consecutive night of astrophotography - I'm not going out tonight despite the likely clear skies - I need a break.
Aug. 2 update: A re-edit, this time without a luminance layer - makes the reds less pink.
Comet 41P/Tuttle-Giacobini-Kresak passes through the constellation Ursa Major.
Stack of 21 one-minute shots taken between 21:59 CDT on 3/26/2017 and 00:21 CDT on 3/27/2017. Observing site Huntsville, AL, USA
For this image, the stars were tracked and the comet allowed to trail.
Antares only rises to 23 degrees altitude max and the best imaging window is 3 hours per night in the beginning of june. And of course without moonlight. This year my only shot was a 3 hr window on june 7. This is a 2 panel mosaic made with the Esprit 100 f5.5 APO and Canon 6Da and Optolong L filter. (total 53x180 sec iso 1600 I plan to add more panels over the next few years. Processed with DeepSkyStacker (2 stacks) and Pixinsight (DBE, Histogram, Staralignment, Gradientmegemosaic, curves)
Knight Observatory, Tomar.
I managed to add 3 hours to my previous version of this on Saturday night, but that has little to do with the above result. This is my first attempt at collaboration with my good friend Dave Williams (whom I have never met, as he lives in the frozen northern wastelands known as Manchester). Dave works in NB, and provided Ha, which I added as a luminance layer (after trying a few other techniques without success), and this is the result. Now I'm fully aware that what you can see above is predominantly luminance, with a bit of RGB thrown in to provide character, so Dave very much deserves most of the credit for this image. However, as he's not on Flickr, I'm happy to accept it :)
This is also my first attempt at combining Ha with RGB (albeit as luminance), and It makes my previous version look a bit sick :)
RGB:
SW ED80/EQ5
Nikon D70 modded, Baader Neodymium filter
45 x 180secs iso 800, 60 x 180secs iso 640 (5 hours 15 minutes)
Guiding (RA only): Quickcam Pro4000/9x50 finderscope, PHD
Stacked in DSS and processed in CS5
Ha:
15 x 600secs (2 hours 30 minutes)
Used Hasselblad 250mm f4 lens at f4 (cropped - quite a bit!)
Moravian G2 8300
Astrodon 5nm Ha filter
Takahashi EM200 mount
Guiding: DMK through an old 100mm M42 lens