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Showing results for tags 'm33'.
Found 62 results
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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 borrowed from an image I made 2 years ago, but in a small ratio. For full resolution: https://www.astrobin.com/yqr8xe/
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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 Calibration was used on the new image. - PI's HDMRT was used on the Lum to increase the contrast (before I used the PS High Pass Filter) - PI's Dark Script Enhance was used to enhance the galaxies dust lanes. So, still a mixture of PS and PI but now with more PI. Alan (My original result from 2.5 years ago is in 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. (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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Evening SGL, hope everyone on holiday is having a good one! This is an image of M33 captured months ago. Its a collaboration with UK imager Matthew Foyle who provided the much needed Ha data to make the galaxy pop. I captured the RGB with my DSLRs in mid October, i used both a Canon 1100D and 600Da - dont ask why. Matt handed over some Ha data he captured last year at f8 but also went ahead and gathered some more at f5 for this project. I finally managed to get my hands on a Pixinsight license a few days ago and set about on the data. Excellent software, i'm not looking back. I've tried to produce a natural as possible image here, something i always messed up when using Photoshop as i always whipped out the lasso tool for selective adjustments ect. I've settled in to PI these past few days and i'm really starting to understand and enjoy processing a lot more, not that this is not possible in PS. As the title suggests, this was my first time getting my hands on Ha data and i did have to move over to PS to blend it in as i had no idea it is supposed to be added at the start of processing. I left it to the end and i couldnt find a way to do this easily in PI! Feedback is very welcome, especially regarding the Ha image Exposure:RGB - 63* 600 seconds ISO 800 f7Ha - 13* 1200 seconds f5, 15* 1200 seconds f8Total Exposure:19.8 hoursMatts GearScope: Takahashi FSQ106EDCamera: QHY9M cooled to -20Mount: NEQ6 Belt ModdedMy GearScope: Altair Astro 115EDTCamera: Canon 1100D, Canon 600DaMount: NEQ6
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This is the first attempt for me on this target and it's a tricky one from London. Hardly anything at all showed on the subs so I was surprised at how much detail was hiding in there. 10 x 8 minute exposures at 400 ISO 7 x dark frames11 x flat frames21 x bias/offset frames (subtracted from flat frames only)Guided with PHDProcessed in Nebulosity and PhotoshopEquipmentCelestron NexStar 127 SLTGoTo AltAz mount with homemade wedgeOrion 50mm Mini Guide Scope
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Rosette Nebula by mikeyscope, on Flickr Canon 60Da Pentax 500mm lens f5.6 iso 800 x5 300 sec exposures Deep Sky Stacker 5 Flat Frames 5 Dark Frames M33 by mikeyscope, on Flickr Canon 60Da Pentax 500mm lens f5.6 iso 1000 x3 600 sec exposures Deep Sky Stacker 5 Flat Frames 5 Dark Frames A couple of belated images from Kielder & Galloway... had to discard a few frames due to satellites & patchy cloud so had to give them a damned good thrashing in Photoshop ...they deserved it!
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The Triangulum Galaxy (M33): I think at over 4 hours of exposure, taken over three nights, this is pretty much finished for now though I may add some more data if we get another clear night soon, or I might just reprocess it but I'm fairly pleased with what came out. 33 x 8 minute exposures at 400 ISO (4 hours and 24 minutes) 27 x dark frames 20 x flat frames 21 x bias/offset frames (subtracted from flat frames only) Captured with APT Guided with PHD2 Processed in Nebulosity, Maxim DL, and Photoshop Equipment: Celestron NexStar 127 SLT Skywatcher EQ5 Mount Orion 50mm Mini Guide Scope ZWO ASI120 MC imaging and guiding camera Canon 700D DSLR
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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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Hello all Just thought I was post a couple of pictures from a complete newbie. Hope you like them. http://www.astrobin.com/users/gerald%40evans/ Kind Regards Gerry -
This is just a log of my observations last night from my balcony. It has quite a restricted view due to it being recessed so the floor above me gets in the way. It faces south-east-east and I have around 80-90 degrees of azimuth view. If you’re prepared to watch the constellations appear it is ok and put up with the streetlights on the paths it’s ok. I have places nearby where I can set up to get a better view of the sky but it’s summers and I could hear some people having a party in the park. I thought I’d leave them to it as it will be cold in the winter and the night time park will hopefully be empty! I was using my 102mm Mak on an eq2. I’d been hoping to have another attempt at the Ring Nebula in Lyra but the floor above me was getting in the way. I should have got out a bit sooner – with it not really getting dark enough until ~2330 and it going out of view for my viewing spot I’ve only got a short window of opportunity for this target at the moment. So I settled for Albireo. This was the first time I’d gone for this double in Cygnus and it’s a lovely sight. A warm orange spot with it’s hot blue partner. It’s not as hard to split as the Double double (which isn’t hard either but it’s the only double I’ve seen so far which I know the name of J ). I then decided to try and find M31 which isn’t visible to the naked eye for my location but the Andromeda constellation was easy to make out by following along from the belly of Pegasus. M31 proved a hard target to find at first. I’d initially started to use the two stars I could see that formed the waist of Andromeda which seemed from Stellarium could be used as a pointer up towards M31 but no amount of wriggling the scope whilst moving up worked so I consulted Stellarium again. Although I can’t see Polaris to polar align I can get a good enough polar alignment by pointing the polar axis north and the latitude for my location. So I could see that if I went up to the centre of the cross of Cygnus (Sadr), moved my declination up a couple of degrees and then scanned back with RA I might hit M31. Whilst getting my up and down mixed up on my declination axis, I happened across a star cluster which took me by surprise a bit. It seemed that I’d mistakenly found M29 after checking with Stellarium. After M29 I decided to put the scope in the right position I’d intended to scan back to M31 from Sadr in Cygnus. This approach didn’t help either! Back to the drawing board. I used the star near the head of Andromeda as a guide next and moved my declination up whilst giving the scope a wiggle and M31 came in to view. In my little Mak it was only the smudge of the centre but I was surprised how big the smudge was. I was expecting the core to appear smaller but I would estimate that I could see around 0.2 to 0.3 of a degree (I was using a 20mm Erfle which gives me ~1 degree in my scope). Having found M31 I was starting to notice more stars in the sky now. I could see the two brightest stars of Aries and the Triangulum so decided to attempt M33. I spent ages trying to find this but couldn’t do it. After doing some research today though it seems that M33 surface brightness is very low so maybe my scope is too small and I have to be a bit more patient when scanning the sky. The same research threw up the obvious question as to why I didn’t see M32. I should have been able to see it with M31 however I probably mistook it for a star. Now I know how to get M31 I’ll look out for it next time. My next target for the night was M34 as I felt this would be easy to find by scanning in RA from Almaak in Andromeda. Whilst lining up on Almaak I noticed this was double with a small companion. This was a double that I was going to put a name to! I’d seen a few without naming them but it’s so easy to find in Stellarium that I had no excuse although I was a bit thrown out when Stellarium didn’t show it as a double in ocular view. Some wiki research today confirmed this though and Almaak’s companion is a double itself but they are seperated by less than an arc second so not sure if I have the resolving power to try this when I go back to it. I found M34 after looking at the Almaak double. It wasn’t hard to find this time. Whilst the open clusters are nice and I like the way they jump out at you as you’re scanning across I must admit I preferred viewing M13 when I first found it. Even though I couldn’t really resolve stars in M13 I just found it a more exciting target. I suppose as it seems like a galaxy within a galaxy. I could now see Jupiter rising through some trees in the distance so tried to get the double cluster but I was just restricted by the floor above again and I could only see the southern half of Cassiopeia so I went to M45 which I could just see as a smudge 20 degrees or so above the horizon. There’s no way I can get all of the Pleiades in my FOV but it was fun scanning around it and all the other stars appear within it. Finally Jupiter had cleared the trees so I concentrated on this now. The seeing was quite bad, the transparency was getting worse (a haze was starting to develop around the planet) and Jupiter was still quite low.I found that my 10mm plossl was giving me a bit too much magnification and I was better of using my 15mm or my 20mm erfle with the barlow cap in the end to give ~100x magnification. Detail was hard to make out though and I was restricted to seeing 2 bands of brick colour on against the cream background. Unfortunately the moons were nicely spread out this time; I’d been hoping for a repeat of when I watched one of the rise from behind Jupiter a week ago. I’m looking forward to when Jupiter starts rising earlier in the autumn so I can view it higher in the sky to beat the seeing before the Sun rises. So that was last night on my balcony waiting for the earth to spin. Next week looks good my way for weather so hopefully I can repeat it soon.
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After doing some imaging of M31, the Andromeda galaxy, a few nights ago I thought it would be worthwhile trying an experiment with the same setup as before on a more challenging object. The Triangulum galaxy, M33, is in the same vicinity as M31 but is significantly fainter and smaller. This image is composed of 29 subs each with a 30 second exposure time. Mrs WaveSoarer did the same treatment as before but the focusing wasn't quite as good as our previous effort when she zoomed in to individual bright stars on the subs. I think that the breeze might have affected things also. However, she thought that the tracking was better so that was a bonus. The final result, again all worked up in PS, is promising but I think demonstrates that we'll need to move on now and start using DSS along with dark frames. I also think that to really get better focusing we'll need to download the longer framing and focusing subs onto the laptop as the little screen on the back of the camera isn't really adequate unless the focusing is grossly out. Anyway, from set up to packing away, and then making it to the pub for a beer with friends in our local, was all done in about an hour. Incidentally, M33 is just about visible in the finder and only appears as a faint smudge in the main telescope with a 20 mm EP.
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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. Some nights had clouds, some not. Luminance was taken during 6 or 7 nights for a total of 156x180s frames at unity gain, through a visual CLS filter. That means 7h 48min. The visual CLS seemed to provide better results than the L (IR/UV cut) filter and the coma corrector didn't seem to add chromatic aberrations. Each RGB channel is made by ~60x60s at unity gain too. Ha, if I remember well, is just above an hour worth of 60s frames at 300 gain. I resized the images to 50% since they didn't provide more detail at full resolution due to poor seeing. Processing was done with StarTools and GIMP. Some star reduction. Red/white light pollution. If I missed other significant details that you're interested in, please tell. 16bit .png here: https://drive.google.com/open?id=0ByhJ_xuQxcnjWHU1RWM0OVFmNG8 Or astrobin: http://www.astrobin.com/313011/ Thanks for looking and clear skies! Alex
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From the album: Deep Sky II
I gave this quite a long exposure with the H alpha filter (c7.5 hours) since I wanted to capture the various hydrogen clouds. The image represents about 15 hours of integration. CCDstack used for calibration, stacking and error rejection. Pixinsight for DBE, BN and Colour Calibration, PS for everything else. The major challenge with this image is that it contained various scattered light "rainbows" that where generated by out of view bright stars, one of these "rainbows" passed straight through the galaxy. To eliminate the scattered light issue I followed the PS tutorial by Adam Block in his "cosmic canvas" series - this is an amazingly effective technique to eliminate/reduce the problem. LIGHTS: L:15, R:9, G:10, B: 12 x 600s; H: 15 x 1800s. DARKS:30; BIAS:100; FLATS:40 all at -20C. -
From the album: Deep Sky
This is M33 - the Triangulum Galaxy taken on bonfire night, 2012. It was a bit misty (maybe thanks to the fireworks!) and so the subs were rather noisy. This is 5 1/2 hours of Lum data in 10 minute subs, TS90 APO triplet f/6.7 taken with an Atik 460ex, guided with IMG0H and PHD.© 2012 Ian Russell, CC-BY-NC
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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. Adrian
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I've had another go at processing the M33 data that I captured earlier this month... I really liked the understated colours in the image posted by Betelgeuze last month and while I haven't done anywhere near as good a job as him I think I've managed to sharpen it up quite a bit over my previous effort. Still learning how to process, but I think I'm getting better so thanks for all the feedback. This with my standard DSO kit: Atik 460ex, TS 90 APO on a CG-5, guided by an IMG0H and PHD. Lum 30 x 600s & 4 x 1200s; R 5 x 600s; G 3 x 600; B 3 x 900 Stacked in AstroArt 5, processed with PhotoPlus X4. Hope you like it!
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From the album: Deep Sky Objects
I'm pleased with this image given that the first subframe was smeared badly due to tracking errors caused by cloud. That cleared and stayed away until 5 minutes after the last frame that I took. I'm delighted with the detail that I captured, especially that of NGC604 (the red blob in the lower right). M33 is a spiral galaxy approximately 3Mly from Earth and is part of our local group of galaxies. It is believed that it is a satellite galaxy of M31 (the Andromeda Galaxy) due to their gravitational interactions. NGC604 and NGC595 are large H II regions in the galaxy and are highly active. NGC604 is approximately 1500 light years across, over 40 times larger than the Orion Nebula and over 6300 times more luminous. If you want more details the astrobin link is: http://www.astrobin.com/269625/ -
From the album: Deep Sky
Imager: Sky-Watcher Evostar 80ED DS-Pro, Sky-Watcher 0.85x Focal Reducer, Canon EOS 500D (Unmodified), Hutech IDAS LPS P2 2", APT - Astro Photography Tool Guider: Orion ST80, QHY 5, PHD 2 Mount: Sky-Watcher NEQ6, AstroTortilla, EQMod Processing: PixInsight 1.8 Dates: Friday 31st October, 2014 LIghts: 61 x 300seconds ISO400 (~5.1 hours) Darks: 109 Flats: 100 Bias: 330 (Processed Using PixInsight SuperBias module). I tried three different integrations in PixInsight - normal, Bayer Drizzle (1x with 1.0 drop size) and Drizzle 2x with 0.9 drop size. The Bayer drizzle did a better job on the colour as you'd expect - less bleeding of colour in/out of stars, but resolution and overall quality doesn't seem much better than standard integration. This version presented above uses the standard drizzle to produce a 2x larger image with much better resoluton. There is a noticeable difference in the size of small stars, roundness of larger stars and many more tiny stars in the galaxy arms. Even when downsampled for presentation (5x in this case) the image is much superior.© Ian Lauwerys 2014, All Rights Reserved
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From the album: my humble astroimaging attempts
M33 with Canon 450D (unmodded) on HEQ5 Pro GOTO, guided with finder guider QHY5, SW 130pds 2 sessions combined October 2013 137x 300s Lights (reduced by a couple of airplanes...) at ISO 1600 44x Flats 41x Bias 40x Darks Edited with PS CS5 (64bit) -
From the album: Marci’s Astropix
15x240s@ISO800 Colour (EOS650D) 15x240s@ISO800 HII (EOS1000D FSM + 12nm HII) -
From the album: Exploring the Universe From Peruvian Skies
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From the album: Deep Sky
M33 The Triangulum Galaxy Taken on 5th and 10th November 2012 from South Oxfordshire, UK. TS90 APO scope @ f/6.9; CG-5 mount; Atik 460ex camera guided with QHY IMG0H and PHD. L - 4 x 1200 sec & 25 x 600 sec R - 5 x 600 sec G - 5 x 600 sec B - 5 x 900 sec All binned 1x1© 2012 Ian Russell, CC-BY-NC
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From the album: Deep Sky
This is M33 - the Triangulum Galaxy taken on bonfire night, 2012. It was a bit misty (maybe thanks to the fireworks!) and so the subs were rather noisy. This is 5 1/2 hours of Lum data in 10 minute subs, TS90 APO triplet f/6.7 taken with an Atik 460ex, guided with IMG0H and PHD.© 2012 Ian Russell 2012, CC-BY-NC
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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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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% opacity. I was trying to get the wide field view from the dslr with the enhanced detail from the 414/428 but I'm not sure it has worked. Any advice and help would be much appreciated. Thank you for looking. Adrian
