View allAll Photos Tagged Deepskystacker
Milky Way between the constellations eagle (Aquila) and Swan (Cygnus)
*
Teleskop / Kamera:
Montierung: Star Adventurer
Optik:60mm f/3.5
EF-S60mm f/2.8 Macro USM
Kamera: Canon EOS 650D
Guider: -
Filter:-
Aufnahmedaten:
Zahl der Aufnahmen: 20
Brennweite:60 mm
Öffnungsverhältnis: 3,5
Belichtungszeit pro Aufnahme: 30 sek.
Empfindlichkeit ISO-Wert: 1600
Darkframes -
Flats -
Bildbearbeitung:
DeepSkystacker:
Standard / Light = Durchschnitt / Ausrichtung= Automatsch / 100% der Bilder
Photoshop Elements 10:
Tonwertkorrekur, Sättigung
Bode Galaxy/Galaxia de Bode (M81) and Cigar Galaxy/Galaxia del Cigarro (M82)
The Bode and the Cigar Galaxy are 12 million light years apart and located in the constellation Ursa Major. The first is a spiral galaxy with about 250 billion stars, and the second is a long, narrow irregular galaxy with about 30 billion stars.
La galaxia de Bode y la galaxia del Cigarro están a una distancia de 12 millones de años luz y están ubicadas en la constelación de la Osa Mayor. La primera es una galaxia espiral con alrededor de 250.000 millones de estrellas y la segunda es una galaxia irregular alargada y estrecha con cerca de 30.000 millones de estrellas.
- Date/Fecha: 21/08/2020
- Location/Lugar: Piedrafita de Jaca - Huesca (42°42'4.4"N 0°19'52.6"W)
GEAR/EQUIPO
- Tracker/Montura Sky-Watcher AZ-GTi
- Guiding with QHY 5L-II Mono and guidescope EZG-60
- Camera Sony ILC3-A7M3 Modo APS-C
- Lens Sony FE 200-600mm F5.6-6.3 G OSS
IMAGE/IMAGEN:
- 85 Lights at 900mm, ISO 10000, 20seg, f6.3
- 20 Darks at ISO 10000, 20seg, f6.3
- Total time of exposition/Tiempo total de exposición 28min. 19seg.
SOFTWARE
- Stellarium Scope & Stellarium to guide the tracker
- Stacked with DeepSkyStacker
- Guiding with PHD2
- Image viewer Adobe Bridge
- Image processing with Adobe Camera Raw and Adobe Photoshop CC
©2020 All rights reserved. MSB.photography
Thank all for your visit and awards.
Localisation : CastresmallObservatory (Castres, Tarn - France)
Acquisition Date : 2017-01-20
Auteur/Author : ROUGÉ Pierre
Mouture/mount : Orion Atlas EQ-G
Tube/Scope : Samyang 500mm F6.3
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 : 75 minutes [25 subexposures of 180 sec each (selected from 25)] @ ISO 1600
Calibration : Dark & Bias : 29/11 @ ISO 1600 - Flat & Dark-Flat : 17/0 @ ISO 100
Temps/Weather : Bonne transparence. Faible faible sud-est. T=6°C. Humidité nulle.
Constellation : Cassiopae / Cassiopée
Surnom/ Surname : Nébuleuse du Coeur / Heart nebula (IC1805)
Software Used : Astro Photograph Tool (v3.13), DeepSkyStacker 3.3.6, Pixinsight LE, PhotoShop 7, xnview, Noiseware Community Edition
45x30sec lights,20darks. ISO1600. Skywatcher Esprit APO 100ED and Canon EOS 5D mk2. Processed Deepskystacker and Startools.
Except for the rings of Saturn, the Ring Nebula (M57) is probably the most famous celestial band. Its classic appearance is understood to be due to our own perspective, though.In this well-studied example of a planetary nebula, the glowing material does not come from planets. Instead, the gaseous shroud represents outer layers expelled from the dying, once sun-like star, now a tiny pinprick of light seen at the nebula's center. Intense ultraviolet light from the hot central star ionizes atoms in the gas. In the picture, the blue color in the center is ionized helium, the cyan color of the inner ring is the glow of hydrogen and oxygen, and the reddish color of the outer ring is from nitrogen and sulfur. The Ring Nebula is about one light-year across and 2,000 light-years away.
Source of explanation: NASA
Datum: 28. i 30. prosinac 2023.
Lokacija: Županja - Bortle 5
Optika: SW Esprit 80ed
Kamera: ASI2600mc pro
Filteri: Baader UV/IR-Cut / L-Filter, Antlia ALP-T
Guiding: SW 9x50 + ASI290mm
Montaža: SW HEQ5 Pro Rowan mod
Ostalo: AsiAir Plus
Stakiranje i obrada: DeepSkyStacker, GraXpert , Siril & Lightroom
Ekspozicije(gain 100):
Lights: 79x300sec
Lights za zvizde: 30x90sec
Flats, bias, darks da
Comet C/2014 Q2 Lovejoy from Ireland
Skywatcher 200PDS, Canon 1100D
3X60s ISO800
Darks, Bias & Flats
DSS + PI + CS5 processing
Eq3 mount, Skywatcher Explorer 150p, Sony a6100.
150 light frame (iso 3200, 30s), 20 dark frame and 20 bias frame.
Post processed with deepskystacker and photoshop.
11 x 4-minute exposures at ISO 1600, f/4. Manually guided off-axis. 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.
- 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
- 20 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 July 1st 2016 at the Golden State Star Party
More info - www.youtube.com/watch?v=trkccIaMYIs
Couldn't resist this :) I knew there was more there, and there is, but I may have pushed it a little too far. There's only the very faintest suggestion of nebulosity to the right (south) of the loop, and I can't bring it out. When the moon's gone, I'll give it another go. First iteration
Is this an improvement, or is this too "in ya face"? Despite appearances, it's just this side of being clipped.
Nikon D70 modded, 55-200 Nikkor at 55mm (cropped), f5.6, 1600iso, Baader Neodymium filter.
51 x 3 min, unguided EQ5
Darks, flats and bias
Stacked and processed in DSS and CS5
On a whim I decided to go to the big annual Oregon Star Party, an amazing event for astro-nerds and fellow travelers that's held out in the boonies about a 4-1/2 hour drive from Portlland, and 1 1/2 hours east from Prineville in the Ochoco National Forest.
At the swap meet I bought a decent amature 8-inch telescope, but this photo was taken with my Canon T1i with the 18-55 lens zoomed to the widest view. The only trick was taking lots of 20-second exposures at ISO 3,200. This is the result of stacking 24 images with DeepSkyStacker. I didn't set out trying to get this kind of image, but rather trying to capture more meteors. No meteors showed up, but thanks to some tips from the astro-nerds I discovered photo stacking. It sure brings out the stars, the Milky Way, and the Andromeda Galaxy!!
Rho Ophiuchus region + Antares.
Canon EF 200mm f/2L IS USM on a Celestron CGE Pro mount, Canon 5DMkIII. Stack of 67 images @ 1 minute each, ISO1600, f/2.2.
Deepskystacker + Photoshop processing.
Taken with a TMB92L, Canon T3i DSLR, and Celestron Advanced VX mount. Consists of 38 light and 38 dark frames, each a 60-second exposure at ISO 800, stacked in DeepSkyStacker and processed in Photoshop.
First light for my Sky Watcher Evostar 80ED
This was captured from my back garden in light polluted Nottingham, I just couldn't wait to test out the telescope, gibbous moon or not.
I can foresee a visit to a dark sky site in the near future!
Canon 60D
SW Evostar 80ED f/7.5
EQ6 Pro (EQASCOM)
Astronomik EOS CLS Clip Filter
29 frames at ISO 1600
180s per frame
Total integration time: 87 minutes
Off axis guided using an SPC900 webcam and GuideDog.
Stacked in Deep Sky Stacker, processed in Photoshop, no flats, darks or bias frames used.
No focal reducer/corrector used.
Taken with a TMB92L, Canon T3i DSLR, Orion SSAG autoguider and 50mm guidescope, and Celestron AVX mount. Consists of 40 180-second light frames and 18 180-second dark frames, all at ISO 800, as well as 15 flat and 25 bias frames. Captured with BackyardEOS, stacked in DeepSkyStacker, and processed in Photoshop.
10" f/4 Newtonian and modified Canon 1100D c/w UHC filter. Captured 5 subs at 5 min exposure at ISO 1600 using capture software BackyardEOS . Stacked in Deepskystacker and processed using Nebulosity 4 and Photoshop,no darks nor flats subtracted. Image taken early hours of 9/9/15
I am finding post processing of astro images very hit and miss, and quite difficult, had another go at this one from the same stack file as previous, and tried very hard not to blow out the highlights, and this is the result, I think to an exstent astro post is very much to personal taste.
Orion Nebula 19-12-20.
57 images stacked in DeepSkyStacker post processed in Photoshop, taken from my garden last night.
Nikon D750, Nikon 80-400mm at 400mm wide open on a Skywatcher Star Adventurer mount, 57 1 minute iso800 lights, 20 darks, 20 flats 20 bias
The Orion Nebula is a diffuse nebula situated in the Milky Way, being south of Orion's Belt in the constellation of Orion. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. It has a mass of about 2,000 times that of the Sun. Older texts frequently refer to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula.
The Orion Nebula is one of the most scrutinized and photographed objects in the night sky, and is among the most intensely studied celestial features. The nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed protoplanetary disks, brown dwarfs, intense and turbulent motions of the gas, and the photo-ionizing effects of massive nearby stars in the nebula.saved with settings embedded.
FSQ106ED + QE0.73X + EOS6D(SEO-SP4)
40x300sec (Ambient +11C) ISO1600
on SkyWatcher AZ-EQ6GT
(Total:200min)
Guiding: ASI120MM + 50mm
DeepSkyStacker, StellaImage7, Photoshop CC2015
Locations: Kamogawa Sports Park, Kibichuocho, Okayama, Japan
Oct. 2016
Taken with a TMB92L, Canon T3i DSLR, and Celestron Advanced VX mount. Consists of 38 light and 33 dark frames, each a 40-second exposure at ISO 800, stacked in DeepSkyStacker and processed in Photoshop.
I have done this image of a part of the Milky Way by stacking 67 images of 8 seconds each at 3200 ISO with my Canon EOS 600D (unmodified) equipped with a basic 50 mm f/1.8 II lens.
I used also as it can be seen, no tracking mount. Just a simple tripod.
For french speaking people (or you can translate the thing) I have writen an How-capture-the-Milky-Way tutorial, available on my Blog : astrospace-page.blogspot.fr/2014/12/tutoriel-photographie...
This part of the milky way is really pleasant for me because it hides reams of nebulas !
We can find on this picture :
- North America Nebula (NGC 7000)
- Pelican Nebula (IC 5070)
- Butterfly Nebula (IC 1318)
- Veil Nebula (NGC 6992 and NGC 6960)
CANON EOS 600D + 50 mm f/1.8 lens
f/1.8
67 x 8 secs
ISO 3200
My first success at using the HEQ5 Pro and SkyWatcher 200PDS.
Stack of 4 exposures 6 minutes each.
4 lights, 15 darks, 60 bias stacked with DeepSkyStacker.
5DMkIII on a Skywatcher 200PDS with a Paracorr coma corrector.
HEQ5 Pro mount controlled via PHD2.
QHY5II guide camera on a Skywatcher 9x50 finderscope.
Camera control via BackyardEOS.
Raw files stacked with DeepSkyStacker and postprocessed in Lightroom.
Taken on the last and clearest night of my Christmas/New Year break.
9 x 6-minute exposures at ISO 1600, f/6.25. Modified EOS 600D & Sky-Watcher ED80 refractor, piggybacked on a Celestron C8 telescope for manual guiding.
Registered and stacked using DeepSkyStacker; initial curves adjusted in Canon Photo Professional; final curves and colour balance adjusted using Paint Shop Pro; noise reduction via CyberLink PhotoDirector
Here is my first picutre of the Great globular Cluster in Hercule constellation taken last night.
The full moon was a bit disturbing and despite the polar alignement was not precisely made, I managed to get a result that I tought worst !
This image is made of 20 frames of 15 seconds each at ISO 1600 with a Canon T3i.
The telescope used is a 200/800 reflector (without coma corrector ^^)
20 x 15 secs (5 min) + 10 darks
ISO 1600
F/4
800 mm
M31, NGC 224, Andromeda Galaxy
Optics: Takahashi FS60CB with 0.72x Reducer (255 mm F4.2)
Exposure: Fujifilm X-E3 (APS-C) iso6400 x 1min x 50 frames (with 30 Dark frames )
Mount: Toast Pro (TP2) with Polemaster
Software: DeepSkyStacker, Astronomy Tools, GradientXTerminator, Photoshop
Canon 500D
Sigma 120-400 @250mm
ISO 800
f 5.6
frames of 1 min, 2 min and 3 min
total exposure about 50 minutes
dark bias flat
A reprocess and uncropped version of another image of this pair I uploaded a few days ago. This one is the full field of view from my 80ED f/6.
Fireworks Galaxy NGC 6946 and Open Cluster NGC 6939
I've been experimenting with this image. It's a reprocess and uncropped version of the image I posted yesterday (bit.ly/2aZeH54). This time, I tried using the stacking in Photoshop instead of using my tried and true DeepSkyStacker.
What I find most interesting is that despite NOT using dark frames for noise reduction in this stack, the image actually turned out cleaner and with less noise than the version I stacked with DSS including dark frames. And I think the overall result is actually much nicer as a result of this.
That said, Photoshop lacks a lot of what I would consider critical features for doing this (like image quality estimation) and other tools, but in the case where I have a uniformly good data, the results were pretty astonishing.
Nikon D5100
Explore Scientific ED80
Celestron AVX mount, unguided
1H 30m of 2 min exposures @ ISO 1600
Clear sky here last night so I took my camera to the outskirts of our city and pointed it in the direction of Orion for some shots. DeepSkyStacker used to stack 11 frames (f5.6 10 sec exposures at ISO 4000!)
Object Details: Having been in the midst of thunderstorms for the past several days, not to mention the nearly full moon at the moment; the peak of this year's Perseid meteor shower has been a bit of a non-event in this area.
Therefore, I made the time to take a first look at some wide-field Milky Way images I took while attending my 31st annual Stellafane astronomy convention (held during the first weekend of August in Springfield, Vt, USA (it's 84th year)).
Although I concentrated mainly on visual observing this year, and had the pleasure of viewing dozens of objects through some excellent large binocs & 20" class dobs that my friends had brought, I did setup a Star Adventurer tracking mount & Canon 700D (t5i) with an 18-55mm 'kit' lens and used APT and a laptop to take a series of automated exposures.
Upon examining the resulting images I found that Mother Nature had brought me a small present the morning of my birthday by allowing me to capture one frame showing two meteors running nearly parallel along the portion of the Milky Way known as the Summer Triangle!
Image Details: Taken from the scope field at Stellafane 2019 by Jay Edwards on the morning of August 2nd using a Canon 700D (t5i) and standard 18-55mm 'kit' lens riding on a Star Adventurer tracking mount, the attached is a single 2 minute exposure at ISO 1600 with the lens set to a focal length of 21mm and an aperture of f/4.
As presented here, it has been calibrated with darks & bias frames (but not flats), was processed in a combination of DSS, PI & PSP, is shown uncropped, has been re-sized down to 2X HD resolution and the bit depth lowered to 8 bits per channel.
Although the meteors will most likely get lost (averaged out) in the process, I'm hoping to have captured some additional images of this region of a sufficient quality in order to process a stacked image in an effort to improve the Milky Way's signal-to-noise ratio.
Taken through a borrowed Sigma 70-200 f/2.8, lightly cropped. Two 2-minute exposures stacked in DeepSkyStacker. If I had more time with the lens, I'd liked to have done an HDR set (so as not to burn out M42), but alas, condensation on the glass cut my imaging time short. I also didn't get a flat frame, which made processing difficult... once I brought out the Horsehead, the center of the picture was a bright orange blob. I tried synthesizing a flat in IRIS with no luck, and eventually just used a flat frame I took with one of my own lenses, which almost matches.
Askar FRA400 with Altair Hypercam 533C
RGB 26 x 120s
Processed with Deep Sky Stacker and Affinity Photo
The Great Andromeda Galaxy, wide field.
Fotografia a largo campo della Grande Galassia in Andromeda
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Massa, 44° 2'31.08"N 10° 7'9.22"E
-29/09/2011 10 p.m.
-Canon 450D
-Pentacon 2.8/135
-Heyford EQ8
-27 lightframes (20s, 135mm, f/4, iso 800)
-27 darkframes
-Backyard Eos
-Deepskystacker
-Photoshop CS 2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
After seeing these excellent photos right next to each other in my contact photo list, and seeing a clear night sky for the first time in 2008, I thought I'd snag an Orion Nebula shot of my own. That's the Running Man nebula near the top.
Canon XTi at prime focus of Orion SVP 80ED. Stack of 33 photos @ 30 seconds each, stacked in DeepSkyStacker.
It's an unremarkable photo as M42 shots go, but definitely one of my best.
Data: 30/03/2016
Telescopio: Celestron CPC-800 xlt
Telescopio di guida:
Montatura: Celestron CPC-800 xlt
Camera di acquisizione: Canon 600D Baader
Camera di guida:
Pose: 30x30 s.
ISO: 3200
Dark: 69
Flat: 21
DarkFlat: 21
Bias: 211
Temp. sensore: 20 °C.
Temp. ambiente: 13 °C
Bortle: 7
Software di acquisizione: O'Telescope BackyardEOS 3.1.
Software di elaborazione: DeepSkyStacker, Photoshop.
Luogo: Pedara (CT).
Localisation : CastresmallObservatory (Castres, Tarn - France)
Acquisition Date : 2017-02-16
Auteur/Author : ROUGÉ Pierre
Mouture/mount : Orion Atlas EQ-G
Tube/Scope : Samyang 500 mm F6.3 Dx
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 : 33 minutes [11 subexposures of 180 sec each (selected from 25)] @ ISO 1600
Calibration : Dark & Bias : 5/11 @ ISO 1600 - Flat : 11 @ ISO 100
Temps/Weather : Bonne transparence. Faible vent. T= 9°C. Humidité faible.
Constellation : Orion / Orion
Software Used : Astro Photograph Tool (v3.20), DeepSkyStacker 3.3.6, Pixinsight LE, PhotoShop 7, xnview, Noiseware Community Edition
28 x 5 minutes, ISO 800
40 Darks, 200 Bias
Equipment:Canon 450D (full spectrum modified), Orion 8" f/3.9 Newtonian Astrograph, Atlas EQ-G, Orion SSAG/ST-80, Baader MPCC
Aquisition: EQMOD, Cartes du Ciel, Backyard EOS, PHD
Calibration and 2x drizzle in DeepSkyStacker
Post-processing in Pixinsight
I usually crop my images down more than this but, there is a few clusters towards the edges and to the far right is IC 417. I may reprocess it at a later date and crop it right down to the fly nebula.
The Fly nebula lies in the constellation of Auriga. It is an emission nebula and a reflection nebula. Sometimes referred to as a mini version of the Orion nebula, as it has a star cluster, including it's own version of the Trapezium. Some estimates have the nebula at about 7,000 light years from us.
Boring techie bit.
Skywatcher quattro 8" S & f4 aplanatic coma corrector
HEQ5 pro mount guided with an Altair 50mm & GPcam setup
Canon 450D astro modded with Astronomik CLS CCD EOS APS-C clip filter. Neewer Intervalometer used to control the exposures.
Milkyway & Devils Tower, Wyoming Nigh landscape above the Wyoming's Bear Lodge Butte in Crook County bit.ly/2FAYvoG Canon eos 6D, EF85L2 1.2, 85mm, f/1.2, iso1600, 5X6sec, Deepskystacker
A deep 90mm view of the core of our galaxy from the pink lagoon nebula to the red cats paw and war and peace nebula. Intricate dark dust lanes and star clouds with millions of stars like our sun dominate the image. Somewhere in the centre lurks Saggitarius A* the supermassive black hole weighing 4 million times our sun.
25x1 minute exposures iso 1600.
OTA: Celestron C10N, 10" newtonian reflector and MPCC-III
Camera: ZWO ASI1600MM
Exposure: Red=H-alpha 17x10min, Blue=OIII 17x10min
Mount: CEM70G
Captured with SGP
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX (light pollution zone: red)
M33 - Triangulum Galaxy
Spiral galaxy 2.73 million light-years distant
FINALLY got this image processed. Started gathering data for this project in early November 2020 but the weather has been so bad here in the UK, that I have given up trying to add further data to this image this. Only 6.6 hours total integration time sadly.
Quite happy with how it turned out though as I am still getting back into the hobby and learning all I can about post-processing. The dark arts are deep and mysterious in this hobby.
Comments welcome. Clear skies.
Acquisition Equipment
Camera - CANON EOS 60D - Modified
Filter - Astronomik CLS-CCD Filter
Telescope - Sky-Watcher 80ED w/Sky-Watcher .85x Reducer/Flattener
Focal Length - 510mm
F Ratio - F6.3
Mount - Celestron CG-5 Advanced GEM
Guide scope - Celestron 9x50 Finder
Guide Camera - QHY 5 Mono
Image Capture
Sub Frames - 106 Light, 50 Dark, 100 Bias, 100 Flat
Exposure - 66x180sec + 40x300sec
ISO - 1600
Total Exposure - 6 h 37 min
Acquisition Software
Capture/Sequence - N.I.N.A. - Nighttime Imaging 'N' Astronomy
Plate Solving - ASTAP - Astrometric STAcking Program
Guiding - PHD2 - Open PHD Guiding
Planetarium - Stellarium
Processing Software
Stacking - DeepSkyStacker
Post-processing - Adobe Photoshop 2021
Links
All i can find about this nebula is that it has number 289 in Lynd's Catalog of Bright nebulae. It is not bright at all and "Hidden" in a dense Milky way star field. In the middle of the field of view we can see an open star cluster with code DO45. The location is: RA 21h12m, DEC 37D00m.
Canon 6Da on Esprit 100 triplet APO with Optolong L filter. 51x240sec iso1600 48darks, 30flats, 174bias frames. Stacked in DeepSkyStacker, Processed in Pixinsight.
Knight Observatory, Tomar
10 x 4-minute exposures (taken 26 March 2017) and 10 x 5-minute exposures (taken 21 February 2014) at ISO 1600, f/4. Manually guided off-axis. 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.
Milky Way (stacking): 40 pictures (ISO 1600; 4sec; f2.0) stacked with DeepSkyStacker
Olympus OMD-EM10 MKII + Zuiko 17mm 1.8
Due to heavy wind, most of the sub frames were unusable, only 1/3 of the sub frames are stacked.
Time: 2019. 3. 13. 20:00 ~
Location: Boeun, South Korea (Bortle Dark-Sky Scale: 4)
Optics: Takahashi FS60CB with 1.7x Extender (600 mm ƒ/10)
Exposure: Sony A7s (Modified) ISO 12800 x 30s x 84 subs (with Dark, Flat, Bias frames)
Mount: Toast Pro (TP2)
Software: DeepSkyStacker, Astronomy Tools, GradientXTerminator, Adobe Photoshop
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Photographed at Algonquin Provincial Park, Ontario, Canada
(285 km by road north of Toronto)
between 23.45 and 00.01 EDT
* Altitude of the cluster at time of exposures: 40°
* Temperature 21° C.
* Total exposure time: 10 minutes
* 660 mm focal length telescope
___________________________________________
Description:
This large, pretty and bright open cluster of stars - which happens to lie in our line of sight in front of one of the bright and star-dense arms of our Milky Way galaxy - is a favourite observational target of northern hemisphere astronomers on summer evenings.
From Wikipedia:
"The Wild Duck Cluster is one of the richest and most compact of the known open clusters, containing about 2900 stars. Its age has been estimated to about 250 million years. Its name derives from the brighter stars forming a triangle which could resemble a flying flock of ducks (or, from other angles, one swimming duck)."
For a wider angle view of Scutum and M11, made with a 540 mm focal length telescope in September 2016, click here:
www.flickr.com/photos/97587627@N06/30487082573
For a version of this photo WITHOUT LABELS, click on your screen to the LEFT of the photo, or click here:
www.flickr.com/photos/97587627@N06/54729040382
___________________________________________
Technical information:
Nikon D810a camera body on Tele Vue 127is (127 mm - 5" - diameter) apochromatic refracting telescope, mounted on a Sky-Watcher EQ6-R PRO SynScan mount
Ten stacked frames; each frame:
660 mm focal length
ISO 3200; 1 minute exposure at f/5.2; unguided
With long exposure noise reduction
Subframes registered and stacked in DeepSkyStacker;
Processed in Photoshop CS6 (highlights / shadows, levels, brightness / contrast, colour balance)
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