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Finally I have something like First Light with the ODK12. This is just 6 x 600 sec subs Luminance with the Moravian G3 16200 and Chroma filters. Sigma Add stacking in AstroArt 7 followed by a slight crop to get rid of dither edges, Gradient Reduction (As the moon was starting to interfere), DDP and Unsharp Mask. Calibration was with Darks and Flats only as I had neglected to do Dark Flats *slapped wrist*. Reduced 50% for upload and JPEG. Yes it's a bit noisy, and I think I may have focus issues. C&C welcome as usual.
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M33 captured over 4 nights, 16hrs of data using 300sec subs, darks from library, mixed flats for an average and bias frames. Camera: Canon 600D. Everything put into Deep Sky Stacker and the resulting image processed in PS. I used a video made by Scott Rosen on processing to help me process and I learnt some really powerful techniques to use in PS. I think this is my best processed image to date, so I feel happy I have made some progress. Looking forward to reprocessing my old data armed with the new knowledge .
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From the album: 2020 DeepSky
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At the same astro party where I shot the Pleiades and partially Iris + the surroundings, I started gathering data for M33. For this image I used only a SkyWatcher 150PDS through which I recorded the photons on an ASI1600MMC. Curiously enough, I shot ~3.5h of luminance there under Bortle 2 skies, but a simple STF in PixInisght revealed less details than in 4h of luminance (through a LP filter) shot from home under Bortle 6-7 skies. Nevertheless, I put all the luminance together, I shot another 40mins of each RGB + 1h45min of Ha and made an image. A bit of colour only I also borro
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From the album: Deep Sky II
I've often wondered how my post processing skills have changed over the years, so I decided to find out by extracting some data which I acquired c2.5 years ago and performing a reprocess on M33. The LRGB image with an Ha blend into the red channel represents just over 15 hours and was taken with my ED80 on my NEQ6. The main post processing differences are: - I corrected for a slight camera tilt via PS, this results in slightly oddly shaped stars towards the edges of the frame. You should be able to see theses defects in the old image if you zoom in. - PI's Photometric Colour C -
I've often wondered how my post processing skills have changed over the years, so I decided to find out by extracting some data which I acquired c2.5 years ago and performing a reprocess on M33. The LRGB image with an Ha blend into the red channel represents just over 15 hours and was taken with my ED80 on my NEQ6. (If you want to have a look at my original result from 2.5 years ago have a look in my album Deep Sky II). Alan LIGHTS: L:15, R:9, G:10, B: 12 x 600s; H: 15 x 1800s. DARKS:30; BIAS:100; FLATS:40 all at -20C.
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Hi all My recent rendition of the Triangulum Galaxy (M33, NGC 598) in the constellation Triangulum at about 2.5 million light years, luminance, 20x5min., Atik 314L at -10 degrees, SW200P, guiding w/ 9x50 finderscope and PHD2, no flats, altogether 100min. worth of exposure. I had to do an awful lot of wizardry to get rid of light pollution effects. Andy
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From the album: Marci’s Astropix
15x240s@ISO800 Colour (EOS650D) 15x240s@ISO800 HII (EOS1000D FSM + 12nm HII) -
Of course I will start this post with usual heading.... It's been quite some time since we've had any clear night skies to image under. Looking at my computer when starting up the observatory tonight (7 Jan 18) I noticed the last time I had used it appears to have been the 16th of November. Depressing. I tried to make the most of tonight by imaging two objects. The first was the was a spiral galaxy in the constellation Triangulum called the Pinwheel Galaxy or referred to by it's Messier catalogue name - M33. I've always found this object difficult to image. Previously I'd a
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This was an experiment in imaging one target (M33) with three cameras and then combining the three components into one composite image. 70D dslr+ED80DS - 10x120s + 10x180s + 10x240s combined with HDRComposition in PixInsight. 414osc+ED80DS - 7x600s processed in PI 428(Ha)+WO-ZS71 - 10x600s Ha processed in PI. All the components were registered in PI using StarAlignment. 30% of 428-Ha was combined with the 414-Red in PS using a Lighten layer. The Ha enhanced 414osc image was then combined with the widefield image from the 70D using a masked layer at 45% opaci
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I dont normally image galaxies as I live in a Red / Yellow Zone and I find that its very difficult to achieve a pleasing result. However, I have been seeing lots of images from the ASI071mc and QHY168c cameras from highly light polluted locations achieving good quality with large numbers of short exposures so I decided to give it a go with my cooled 550D which according to 'sensor gen' has a lower read noise than either of the two pro cooled cameras when used at high ISO. As such this is very much an experiment for me as I would normally move away from 5 - 10 min exposures at ISO800. -
Date: Sun 10th December 1915pm – 0100am Scope: 20” f3.6 Lukehurst Dob with Paracorr (fl = 2089mm) Setting the scene The sky had been slow to clear through the afternoon, I had the occasional glance skywards and a sigh to reflect the slow parade of the clouds given the light winds of the day. We have been so lucky to miss all the snow that has instead decide to descend on our southern relations so I take this opportunity to remind them of their favourite slogan “its grim up north!” – Maybe, but not so tonight! I was planning to start around 8pm, but the thoug- 15 replies
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Managed to capture about 65 (180s each) useable subexposures of the Triangulum Galaxy on my holiday. Mostly luminance but apparently enough RGB data too to bring out some colour. Not bad considering I didn't take any flat frames for calibration. More info here: https://en.wikipedia.org/wiki/Triangulum_Galaxy
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Hi, I reprocessed some old data captured 2.10.2016 using new arcsinhStretch in PixInSight. I have some h-alpha data too, but for this version I only used LRGB to avoid reddish hue that I cant get rid of if I use my H-alpha too to blend in with my red channel. L 23x180s + R/G/B 7x180s, total exposure time 132 minutes. C&C welcome.
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I thought I would try the new ArcsinhStretch process in PixInsight on some recent data of M33 taken with an ED80DS+Atik414ex osc. Prior to applying the process I used DynamicCrop, DBE, BackgroundNeutralization, ColourCalibration, and TGVDenoise (the latter I am very much a novice). One application of ArcsinhStretch produced this result: I also took Luminace and Ha in the same imaging session but the above is just from the osc. I have tried to emulate the result in Photoshop using the procedure in a recent post by @sharkmelley but so far I've failed to get any where near this so -
Hi Everyone, I am experimenting with my new dual scope setup trying to decide on the best way to image with the combination of SW-ED80/WO-ZS71/414osc/428mono. This is M33 with 21x300s from the ED80+414osc and 20x180s L + 5x600s Ha at which point clouds stopped play. RGB, L and Ha were processed separately in PI and then combined in PS with a luminosity L layer and an Ha lighten applied to R - I think/hope as per @ollypenrice advice. As ever any comments on any aspect of the scope setup, process or image would be much appreciated. Thank you for looking. Adria
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From the album: DSO, Nebula, Galaxies, Comets etc
M33 The Triangulum Galaxy 22.09.2017 Atik 314L and William Optics FLT-110 10 x 60 seconds and 10 x 120 seconds Luminance filter only© vicky050373
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Hello all, I started a while ago a topic to show my progress on this target over a couple of years. Now I think I have a final image for this season. I will have to move soon and the clouds don't seem to let me see it again until then. Maybe if I get to travel to a dark site, but then I will go full resolution. Equipment used is a 130PDS with SW coma corrector, ASI1600MMC camera cooled to ~-15C, put on an AZ-EQ5, guided with OAG. Guiding accuracy was reported between 1.3" and 2" depending on the seeing. The window frames only allowed me to see the target for ~2.5h/night. S
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When I just got my first telescope back in December, the Triangulum galaxy was one of the first objects I was trying to find. But with my lack of knowledge of the sky, and the brightness of certain objects, I never succeeded, and before long it wasn't in the sky at night anyway. I had a clear night a few days ago, and my initial target (Bode's Galaxy) went behind a tree, and some clouds obscured the western sky. Checked stellarium to see what else would be of interest to capture, and coincidentally M33 had just risen above the roof of my house. Wasn't sure well it would show up in images
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From the album: The-MathMog's Images
Skywatcher 150P-DS Celestron AVX Mount Nikon D5200 2 Minute Exposures 55 Subs 1 Hour 50 Minutes Integration Time ISO 3200 Manually Stacked and Processed in Photoshop CS2 (My relationship with DSS isn't that good) -
Back in October 2016, I did a short-ish M33 - 1 hour each of RGB, 2 hours of Lum and a paltry 80 mins of Ha. The thread can be read here: https://stargazerslounge.com/topic/278949-m33-with-super-luminance/?tab=comments#comment-3054617 Whilst I was on holdiay, a new version of PI was released. This contained a new process called PhotometricColorCalibration. The idea, as best as I can understand it, is: plate solve your image; compare it with a colour image from a 'reference' catalogue; and adjust the colour calibration to try to match that reference. The reference catalogue used is th
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I've tried taking this galaxy about 5 times now. My first image of it almost 5 years ago was/still is brutal. Like the Avatar Galaxy. Completely blue using a stock 5Dmkiii. lol. Well after years of trying I've finally taken a series that I feel is a step forward. Getting close to a few pictures from others I've really admired and been inspired by over the years. I think this one is gets me a bit closer. 15-300 second lights @ ISO800 25 darks. Median/Mosaic method staking in DSS. Then tweeked in PS. I need more lights I know but every time it's clear now the moon is out every single time.
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Finally I had a chance to image this classic "beginner" target. Turns out it wasn´t as easy as I thought Anyway, here is my first version. Will probably try a "harder" edit further on. I know it looks a bit soft but I didn´t hit the noise reduction hard. Might be the result of slight out of focus? However, the stars look sharp enough. Canon EOS 550D (modded) Skywatcher 150-PDS 55*5 minutes at ISO800. Pixinsight and Photoshop for stacking and editing.
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With the good clear run of skies early and late last month, I managed to grab a fair bit of data on M33 (and other bits). All data was taken from Oxfordshire with my ST-2000, through a WO FLT110 with a WO FLAT4 reducer (so it runs at about f5.7 instead of the native f7) - all mounted on the Titan. Data is as follows: L:R:G:B = 310 (31x10, unbinned) : 95 (19x5, bin 2x2) : 90 (18x5, bin 2x2) : 80 (16x5, bin 2x2) 9h35m in total. All data reduced and processed in PI, and I've done a couple of versions so you can take your pic over "natural(ish)" or "super-HDR" ;-) (and the L cha
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