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My first (and probably last) attempt at a cluster. They come with their own challenges it seems. This is 29 minutes (because there are so many stars even the slightest tracking error screams at you!)
M13 aka NGC 6205 is about 25K light years away, and is about 145 light years in diameter. It contains several hundred thousand stars. Must be a pretty spectacular sight if you live on a planet orbiting one of those stars. Apparently we sent a message to M13 in 1974 - haven't had a reply yet though! :)
25 May 2011
200p, EQ5 unguided
Nikon D70 full spectrum prime focus
29 x 60sec
iso 1600
darks, bias and flats.
Stacked in DSS processed in CS5
M81 , M82 and areas ,,
201 Light Frames
106 Bias Frames
101 Dark Frames
Manual Hands trackin lol
Total Exposure 13 mn and 20 sec with Magic Lantern Nightly
Stakced with Deep Sky Stacker 3.3.4
reedit in Digital Photo Professional 3.13.51.1
Single Frame details :
File name_MG_2447.CR2
File Size23.0MB
Camera ModelCanon EOS 600D
FirmwareFirmware Version 1.0.2
Shooting Date/Time4/18/2014 11:47:56 PM
AuthorMzytengaM
Copyright NoticeMzytengaM
Owner's Name
Shooting ModeManual Exposure
Tv(Shutter Speed)4
Av(Aperture Value)5.0
Metering ModeEvaluative Metering
ISO Speed3200
Auto ISO SpeedOFF
LensEF75-300mm f/4-5.6
Focal Length220.0mm
Image Size5184x3456
Aspect ratio3:2
Image QualityRAW
FlashOff
FE lockOFF
White Balance ModeColor Temperature(5200K)
AF ModeManual focusing
Picture StyleUser Defined 1(Auto)
Sharpness3
Contrast0
Saturation0
Color tone0
Color SpaceAdobe RGB
Long exposure noise reduction0:Off
High ISO speed noise reduction2:Strong
Highlight tone priority0:Disable
Auto Lighting OptimizerStandard
Peripheral illumination correctionEnable
Dust Delete DataNo
Drive ModeSelf-Timer Operation
Live View ShootingON
Camera Body No.sure
Commentno comments
Picture saved with settings applied.
Español
Equipo: Nikon D3200 en Sky-Watcher 150 F5 newtoniano
montado en EQ3-2 con motores en ambos ejes.
English
Equipment: Nikon D3200 on Sky-Watcher 150 F5 Newtonian
mounted on EQ3-2 with Dual Axis drive.
Exposures/Exposiciones: 12x8sec ISO800 + 7x15sec ISO800 + 1x20sec ISO800 + 1x30sec ISO800.
Processing/Procesamiento: DeepSkyStacker (alignment, stacking) + Lightroom (levels).
Place/Lugar: Córdoba, Argentina.
This is a reworking of a previous post. I'm finally having a go at stacking, this was only a few frames stacked using DeepSkyStacker....no darks, flats etc just 4 jpeg files. The result is definitely an improvement on any of the original individual frames and this has inspired me to shoot more accordingly with stacking in mind next....more frames, in RAW and some dark, light, offset frames. Not a bad peice of sky considering it is only 40 mins drive out of London. Piggotts Hill, nr High Wycombe Bucks UK.
4x untracked 30s frames Canon EF18-55mm std lens stacked in DSS, processed using Lightroom4. Just think....there are an estimated couple of hundred billion galaxies in our known universe....and we can't even travel far enough to get to the edge of ours!! One day, maybe we might discover what or who else is out there!
The Milky Way, seen from the top of Haleakala volcano. The image was created by stacking 10 different photos, combined by DeepSkyStacker. Nikon D3200 + Tokina AT-X Pro 11-16mm f/2.8 DX II
Andromeda.
Imaging scope: William Optics FLT98
Imaging Camera: Nikon D7000
Guide Scope:Tokina 100-300mm f/4 telephoto lens
Guide camera: Orion Starshoot Autoguider
31x 1min subexposures under light polluted sky
There's a full moon tonight so conditions are not ideal, but it was such a clear night I thought I'd try this again.
This is made from stacking around 180 two second exposures (ISO1600), using Deep Sky Stacker. Roughly every 10 shots I put my glove over the lens hood and took a 2sec dark frame.
The extent of the galaxy is much more visible and the dust lanes I thought I could make out in my first attempts are obviously there in this image.
The darker band at the bottom is due to me placing the target at the lower right of the frame at the start so there's progressively less exposure the nearer the edge, because those parts were out of frame for part fo the total exposure.
Second attempt with the new AstroTrac. This time I simply pointed to a random patch of the Milky Way in the South, and fired away.
23 x 4 min at ISO 800, f/4
Canon 350D (modified)
Canon EF 35mm f/1.4L
AstroTrac TT320(k)
Conjunction between Moon, 17% illuminated, Mars, Uranus, Jupiter and Pleiades.
Camera Model Name: SONY ILCE-7RM4
Lens Model: SONY FE 85mm F1.4 GM
Date/Time Original: 2024:07:02 04:31:20 (GMT+02:00)
Exposure Time: 1/4 s
F Number: 2.2
ISO: 400
Focal Length: 85.0 mm
Frames: 30 light+12 Flat
Mount: Tripod
Image taken at: Melegnano, Lombardy, Italy
Software: DeepSkyStacker 5.1.3+Gimp 2.10.38
I solved some of the problems I had with this image: had a few rogue darks in the batch that caused horrendous banding in the original process. Having disposed of them, the banding magically disappeared. Better colour in this one I think, and as it's full frame, I have a touch of colour on the right (and a smidgeon on the left if you look really closely) :)
Nikon D70 modded, 55-200 Nikkor at 200mm, f5.6, 1600iso, Baader Neodymium filter.
43 x 2 min, unguided EQ5
Darks, flats and bias
Stacked and processed in DSS and CS5.
This image shows several deep-sky objects, arranged from upper left to lower right. First is the open cluster of stars known as NGC 1981. Next is the mix of dark nebulae and blue reflection nebula known collectively as NCG 1977, also colloquially called the "Running Man Nebula" due to the silhouette which resembles a running human figure. The comma-shaped nebula in the center is Messier 43. Then comes the show-piece, the vast glowing bubble of Messier 42, the Great Orion Nebula. Lastly, the faint blue reflection nebula NGC 1980 surrounds the bright stars of the small cluster Collinder 72, on the lower right edge of the Great Orion Nebula's bubble.
Nikon D90 camera
Sigma 150-500mm f/5-6.3 DG OS HSM APO Autofocus Lens
Orion TeleTrack GoTo Altazimuth Telescope Mount
Comet ISON take between 0536-0545hrs.
6x90sec (9min total), 2x2 Binned
Stacked in DeepSkyStacker & processed in PS2.
Camera: Atik 314L+ Mono
Filters: Baader Luminosity.
Scope: Sky-Watcher Equinox 80ED .
Mount: AZ EQ6-GT goto, Unguided.
Esprit 150ED apo triplet and 1000D with UHC filter was used to collect 9 subs at 5 minutes each at ISO 1600 for this image of the galaxy NGC404 (Mirach's Ghost) in Andromeda. Stacked in Deepskystacker and processed in Photoshop.
Image taken early hours of 05/01/17
Deux tentatives réussies de capturer la comète C/2013 R1 Lovejoy. Malheureusement, la queue ne se détache que très mal du fond du ciel. Les raisons peuvent être le début de l'aube et la présence de la Lune presque pleine. Je tenterai de combiner les 10 fichiers d'assez bonne qualité avec Deepskystacker ou IRIS.
Two attemps of capturing Comet C/2013R1 Lovejoy. Unfortunately, the comet's tail doesn't detach that clearly from the background sky. Reasons can be the approaching dawn and the almost full Moon, which was that far in the sky (roughly 90°). I will try to stack the 10 good files I made in Deepskystacker or IRIS.
Skywatcher Esprit 100 APO triplet refractor and full spectrum modified Canon 6D. 54 x 240 seconds iso 1600 lightframes, 20 flatframes, 65 bias frames, no darkframes, dithered every 3 frames (PHD-BYE). Stacked in DeepSkyStacker and processed with Pixinsight. No noisereduction.
Photo:
Skywatcher Explorer 150/750 telescope, EQ3 mount, Sony A6100 camera
Guiding:
70/400 guiding scope, ASI120mc guiding camera
Images:
Light frames: 9 x 300 sec + 30 * 10 sec (ISO 800)
Dark: 5 + 5
Stacked with DeepSkyStacker, post processed with Photoshop
C9.25 @ f10 on a CEM60,Starlight Xpress filterwheel/OAG and 314L.
7x300 second subs in Ha and 7x300 second subs in OIII stacked in Deepskystacker,colour combined in Maxim DL4 (Ha,OIII,OIII) and processed in Photoshop CS2
Image taken 1/04/19
The Whirlpool Galaxy M51 (also known as Messier 51a, M51a, or NGC 5194) is a spiral galaxy located approximately 31 million light-years from us in the constellation Canes Venatici. The blob on the end is a companion galaxy designated NGC 5195. This was the first galaxy to be recognised as a spiral galaxy.
Had less of my recent mount troubles with this having done a bit of work on it, so managed to retain 58 subs for 58 minutes total exposure (58 minutes 28 seconds according to DSS for some obscure reason). May have another crack at processing this later.
There is a closer crop here.
Reprocessed here.
3 May 2011
200p, EQ5 unguided
Nikon D70 full spectrum prime focus
58 x 60sec
iso 1600
darks, bias and flats.
Stacked in DSS processed in CS5
Picture saved with settings applied.
Deep Sky Stacker with Digital Photo Professional and DPP++
cr2 converted with out editing to DNG 7,1 with Adobe converter . Stacked and first edit in DSS . 16 bit saved and ReEdit in DPP. output Jpg.
68 Light Frames
15 Dark Frames
17 Bias Frames
Hand Tracking
all together 1 minute and 8 second exposure ..no Flat :/ ( how get flat ? )
Single Frame Details :
File name_MG_5263.CR2
File Size22.3MB
Camera ModelCanon EOS 600D
FirmwareFirmware Version 1.0.2 Powered By Magic Lantern Nightly
Shooting Date/Time12/28/2013 2:27:43 AM
AuthorMzytengaM
Copyright NoticeMzytengaM
Owner's Name
Shooting ModeManual Exposure
Tv(Shutter Speed)1.6
Av(Aperture Value)4.5
Metering ModeEvaluative Metering
ISO Speed3200
Auto ISO SpeedOFF
LensEF75-300mm f/4-5.6
Focal Length105.0mm
Image Size5184x3456
Aspect ratio3:2
Image QualityRAW
FlashOff
FE lockOFF
White Balance ModeColor Temperature(6000K)
AF ModeManual focusing
Picture StyleUser Defined 1(Auto)
Sharpness2
Contrast0
Saturation0
Color tone0
Color SpaceAdobe RGB
Long exposure noise reduction2:On
High ISO speed noise reduction2:Strong
Highlight tone priority1:Enable
Auto Lighting OptimizerDisable
Peripheral illumination correctionDisable
Dust Delete DataNo
Drive ModeSelf-Timer Operation
Live View ShootingON
Camera Body No.xxx
Comment
Taken using Skywatcher 80ED Pro (.85X FR), Nikon D3300, 188x30" lights (ISO 3200), 100 flats, 110, bias. Stacked in DeepSkyStacker and processed in Photoshop
Stack of six 20-second frames taken shortly before this photo.
The bright "star" is the planet Jupiter. There's a satellite trail visible just above the planet.
Skywatcher 150PDS
Celestron CG5
Nikon D90
86 x 20 s @ ISO3200
Total exp.: 29 min
DeepSkyStacker
GIMP 2.10
This is just practice! I set up my Orion mount with my unmodified Canon 40D, 1.4 Extender, and 70-200mm f/4L at 200 mm in my backyard in San Jose. Limiting magnitude due to light pollution and the nearly full moon is about 3. Indeed if I didn't know where to look, the Andromeda Galaxy is not visible to the naked eye - and it wasn't easy to find in binoculars, either.
Despite the obstacles of light pollution, an 80% illuminated moon, some less than perfect seeing and operating near the dew point, this was the result. I kept dew at bay using my Dew Not system - but I think I may not have needed it provided I didn't breath in the direction of the lens.
The effective focal length of this system is 448 mm. This is a crop of about 2/3 of the full frame.
For this image I used the full compliment of calibration frames (Lights, darks, bias and flat frames). By comparison see below for what I got when not using the bias and flat frames). NOTE: If this terminology doesn't make sense to you, don't feel badly. It took a while to make sense to me and that's why I decided to create a starter class (a Webinar!) on Astrophotography.
If you're interested in trying your hand at Astrophotography and would like to get going without bankrupting yourself, you might find my "Astrophotography 101: Getting Started Without Getting Soaked" webinar a great help - it might even save you 100s (or thousands) of dollars on equipment purchases. Because I must pay hosting fees, (and have spent days writing materials) I must charge for the class.
You can check here for the latest classes workshops and webinars.
© Copyright 2011, Steven Christenson blog Events
All rights reserved. Curious what "all rights reserved means?" it means that without written permission you may not: copy, transmit, modify, use, print or display this image in any context other than as it appears in Flickr.
The central region of the Milky Way at the intersection of Sagittarius, Ophinicus and Scorpius. Now annotated!
Gear Used:
-Camera: Canon EOS 350D (APS-C)
-Lens: Canon EF-S 18-55mm
-Mount: Nyxtech NyxTracker
Aquistion Details:
15x42" sub exposures
10.5 min total integration
ISO-1600
f/4.5
35mm focal length
Software Used:
RawTherapee
DeepSkyStacker
Pixinsight 1.6
rnc-colorstretch
Adobe Photoshop CS5.1
-HLVG Plugin
EXIF - 60X300" (5h), Gain 120
Calibration: Darks - 20, Bias - 20
Camera: ZWO ASI294MC Pro (cooled to -10°C)
Filter: Astronomik L-2 - UV IR Blockfilter 1,25"
Main optics: William Optics RedCat 51
Mount: Sky-Watcher EQ6-R Pro
Guiding: William Optics UniGuide + ZWO ASI120MM Mini
Controller: ZWO ASIair Pro
Software: DeepSkyStacker + Pixinsight + Photoshop
Location: Sibenik, Croatia
Messier 78 to Alnitak. Not much signal from my backyard (relative to LP), and a lot of post-processing in my attempt to get an Ok picture.
Lens: Canon 300mm f/4, stopped down to 61mm (f/4.9)
Filter: Astronomik CLS
Mount: Celestron CG5 ASGT
Camera: Canon 450d mod BCF, 46F
Exposure: 30x4min ISO 400
Guided with PHD, SSAG, 9x50
Captured with BackyardEOS
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX (Orange zone)
My first session with the 12" Newtonian since May, and unfortunately not very successful due to the aberrations (coma and tllt) that distort the stars (I've cropped the worst of it out). It seems to be worst when I image objects high in the sky, while those closer to the horizon have better-shaped stars.
28 x 2-minute manually-guided exposures, ISO 3200, f/4, taken on 17 and 20 September. Modified EOS 600D & Revelation 12" Newtonian reflector telescope.
Frames registered and stacked in DeepSkyStacker software; curves adjusted in Canon Photo Professional; noise reduction in CyberLink PhotoDirector.
Update: I've added 12 more sub-exposures, taken on 20 Sept, re-stacked and reprocessed for a less noisy result than the original.
In 1054, Chinese astronomers took notice of a “guest star” that was, for nearly a month, visible in the daytime sky. The “guest star” they observed was actually a supernova explosion, which gave rise to the Crab Nebula, a six-light-year-wide remnant of the violent event.
With an apparent magnitude of 8.4 and located 6,500 light-years from Earth in the constellation Taurus, the Crab Nebula can be spotted with a small telescope and is best observed in January. The nebula was discovered by English astronomer John Bevis in 1731, and later observed by Charles Messier who mistook it for Halley’s Comet. Messier’s observation of the nebula inspired him to create a catalog of celestial objects that might be mistaken for comets.
Telescope : T120 (www.obs-hp.fr/guide/t120.shtml)
Camera : Andor iKon-L 936 (www.obs-hp.fr/guide/camera-120/camera-120.shtml)
Filters : UBVRI Filter Set (www.obs-hp.fr/guide/camera-120/ubvri.shtml)
Acquisition :
Lights : RGB, total ~15min
Darks : no darks
Flats : 25 flats for each color
Bias : 25
Software :
Pre-processing : DeepSkyStacker
Processing : Siril, Pixinsight
Post-processing : Lightroom, Photoshop
Celestron CGEM 1100HD with Canon 60Da. Manual guiding using Celestron's off-axis guider and Orion's 12.5mm illuminated reticle eye piece.
Stack of 25 images taken at ISO 800 with 10 minute exposures. Dark frames and flats were taken after the session. DeepSkyStacker was used along with GIMP for PP.
This galaxy is about 22 million light-years away and is about 11 arc-min across (1/3rd the diameter of the moon. It is fairly bright at mag 9.5 but bad seeing made photographing it hard.
Comet C/2022 E3 (ZTF), image taken at Colma di Sormano, Lombardy, Italy in the morning of 29/1/2023.
Tracking with equatorial mount, 53 light, 27 dark, 27 flat and 27 bias for a total of 13 min of integration.
Camera Model Name: Sony ILCE-7RM4
Lens Model: Sony FE 100-400mm F4.5-5.6 GM OSS
Exposure Time: 15 s
F Number: 5.6
ISO: 4000
Date/Time Original: 2023:01:29 03:42:24
Offset Time Original: +01:00
Software: Imaging Edge Desktop 3.5.01.11090 + DeepSkyStacker 4.2.6 + Gimp .10.32
IC2944 - Running Chicken Nebula
Imaging telescopes : Skywatcher Esprit 100ED APO Triplet
Imaging cameras: ZWO 1600MM-COOL
Mounts: Sky Watcher NEQ6 pro
Guiding telescopes : Skywatcher Esprit 100ED APO Triplet
Guiding cameras: ASI290MM
Software: Photoshop CC Photoshop · Astrophotography Tool · DeepSkyStacker 4.1.1 64bit Deepskystacker
Filters: Chroma 5nm HA · Chroma Sii 3nm · Chroma OIII 3nm
Accessory: ZWO EFW 36 mm Filter Wheel
Frames:
Chroma 5nm HA: 28x600" (gain: 139.00) -15C bin 1x1
Chroma OIII 3nm: 28x600" (gain: 139.00) -15C bin 1x1
Chroma Sii 3nm: 24x600" (gain: 139.00) -15C bin 1x1
Integration: 13.3 hours
Darks: ~30
Flats: ~30
Flat darks: ~30
Bortle Dark-Sky Scale: 6.00
Astrometry.net job: 3957246
RA center: 11h 37' 15"
DEC center: -63° 8' 48"
Pixel scale: 1.414 arcsec/pixel
Orientation: 91.300 degrees
Field radius: 1.104 degrees
Well wonders will never cease - we got a clear moonless night last night :)
This is Andromeda (well, some if it), and its two satellite galaxies M32 and M110. 2.5 million light years away and on a collision course with our galaxy, so don't worry too much about your pension ;)
This is my first serious attempt at M31, apart from a rather weak effort with the scope when I first started indulging in this masochistic activity. Considering how close it is (relatively speaking), the outer details of this thing are infuriatingly faint. This is 2 hours, so, in my ignorance, I expected a little bit more - the outer lanes would have been nice. We live and learn :)
Nikon D70 modded, 55-200 Nikkor at 200mm (cropped, a lot), f5.6, 800iso, Baader Neodymium filter.
30 x 4 min, unguided EQ5
Darks, flats and bias
Stacked and processed in DSS and CS5, with a little help from Noel's tools.
Reprocessed here.
IC 1396 is a star cluster surrounded by an area of (very faint, I discovered) nebulosity in the constellation Cepheus, about 2,400 light years away. The area contains the Elephant's Trunk Nebula, which you can't see clearly in the above image, but it is in there somewhere! The bright orange star to the left is the red supergiant Mu Cephei (μ Cephei), also known as Herschel's Garnet Star (garnet from the colour), and is one of the biggest and most luminous stars in our galaxy. It is 1650 times larger than our sun, and if placed where our sun is, it's radius would extend between the orbits of Jupiter and Saturn. It's a big fella!
This is the first iteration, and I will no doubt have several goes at this. One of the most difficult I've had to process, for three hours total exposure the noise was horrendous, and the signal weak. I'm sure there's more there, but I was constantly struggling against the noise and the most appalling colour gradients I've ever seen! First time I've managed 5 minute subs unguided, which is a result.
Nikon D70 full spectrum, 55-200 Nikkor at 175mm (cropped), f6.3, 1600iso, Baader Neodymium filter.
20 x 4 min and 20 x 5 min subs for a total of 3 hours (longest I've done so far), unguided EQ5
Darks, flats and bias
Stacked and processed in DSS and CS5, with a little help from Noel's tools.
Second iteration to follow once I've got rid of my headache and got about five hours to kill :)
While Comet Holmes is quite large (about 1° in width) it is much fainter than it was two months ago. However, Comet Tuttle is returning to the inner solar system. It's about magnitude 6 and just visible in dark skies. In light polluted city skies it is just barely visible. With a four 30-second exposures stacked and 7 dark frames subtracted I was able to tease out the faint green of Comet Tuttle.
On December 30 it will make its way toward the constellation Triangulum and come very close to the Triangulum Galaxy.
As I can't leave this stuff alone, thought I'd have another go at processing this, and also put it the right way up, just for fun. I'm missing Orion you see :)
I could be doing more important stuff of course! :)
Old data from March this year - given the treatment :) Go away, moon and clouds!
SW 200p/EQ5, Nikon D70 modded iso 1600
48 x 60 second subs unguided
Stacked in DSS, processed in CS5.
Milky way caputred with fisheye lens attached to canon 450d with 10 images of 30 secs each stacked in deepskystacker with default settings.
Orion's Belt and Sword, M42 Orion Nebula (right) and IC434 Horsehead and NGC2024 Flame Nebulae (left) - widefield (approx 8.5deg across) - 15-Dec-2014 Zeiss Sonnar Apo 135/2 lens on Astrotrac TT320X-AG mount - Canon 60Da camera + Hutech IDAS LPR Filter, 33 frames (240sec) + 22 frames (30sec) 135mm @ f/2.0 ISO400 - Total Exp: 2h23m + 20+27 Darks + 29 EL panel flats, stacked with DeepSkyStacker, post-processed with Photoshop CC/Lightroom/Nebulosity 3
Another section of the Milky Way from my back yard. This one includes the constellation Delphinus to the far left, and Brocchi's Cluster (or the Coathanger) upper middle.
18 x 5min @ ISO 800
Stacked with DeepSkyStacker
Canon 350D (modified)
Canon EF 35mm f/1.4L
AstroTrac TT320
M82 (Cigar Galaxy) taken on 18 Sep 13. H-Alpha 1x900s & 6x600s, RGB 6x300s (2x2 binned) darks,bias,flats added. Stacked in DeepSkyStacker & processed in PS2.
Camera: Atik 314L+
Scope: Celestron C8 with 6.3 F/reducer.
Mount: AZ EQ6-GT goto, PhD guided with Orion SSAG through OAG.
OTA: Celestron C10N, 10" newtonian reflector
Starizona Nexus 0.75x coma corrector (for f/3.75)
Camera: ZWO ASI1600MM
Filters: Baader CMOS-Optimized
Exposure: CLS-CCD Lum 98x2min, RGB each 10x2min, Ha 7x10min
Mount: CEM70G
Captured with SGP
Registered and stacked with DeepSkyStacker
Photographed from Round Rock TX (light pollution zone: red)
Date Oct.2014 Iwaki-City Fukushima Japan
ISO1600 360sec. * 10*4MOSAIC (total exposure 240 min.)
Camera : Astronomically customized Canon EOS 6D
Telescope : Takahashi FS60CB with RD0.72
Tracking Mount : Takahashi P-2 with HD-4
Guiding Camera : QHY5L-Ⅱ Mono
Guiding Telescope : COSMICAR 50ｍｍ F1.8
Auto Guide Software : PHD Guiding and others
Softwear：DeepSkyStacker ,Photoshop CS6(CC)
Caught this before sunrise. I wanted to get a wider field of view, but I had to crop because of coma.
Exposure: 7x120s, ISO1250
Camera: Olympus E-PL1
Lens: Auto Reveunon 55mm f/1.4 @f/4
Software: DeepSkyStacker, Krita, Darktable
Localisation : CastresmallObservatory (Castres, Tarn - France)
Acquisition Date : 2016-12-06
Auteur/Author : ROUGÉ Pierre
Mouture/mount : Orion Atlas EQ-G
Tube/Scope : Sigma 80-200 (f 3.5-4) @ 200mm-f4
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 : 90 minutes [30 subexposures of 180 sec each (selected from 30)] @ ISO 800
Calibration : Dark & Bias : 4/11 @ ISO 800 - Flat & Dark-Flat : 9 @ ISO 400
Temps/Weather : Bonne transparence. Vent nul. T=5°C. Humidité faible.
Constellation : Aurigae/Cocher
Software Used : Astro Photograph Tool (v3.20), DeepSkyStacker 3.3.6, Pixinsight LE, PhotoShop 7, xnview, Noiseware Community Edition
my very first astro picture! :) sony a6000, Minolta MD Tele Rokkor 2.8/135 @ f4, 1s@ISO3200 on static tripod, 12 Lightframes, 11 Darkframes, 11 Flatframes stacked in DeepSkyStacker
More deep sky stacking fun. I went out again tonight, and filled up the CF card in the camera with 2 second exposures. the moon wasn't quite up yet, so I think the background sky was a little darker. However, the resulting exposure didn't look significantly better than the one from yesterday.
So I decided to combine all the exposures from yesterday and today to see how that looked.
This works out at a combined exposure of about 12 minutes.