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Found 23 results

  1. I've been trying for over a year to get a shot of M31 that showed more than just a fuzzy white blob and this is the closest I've come so far. It was taken on 8th December 2014 from light-polluted London, but it took such a lot of processing to get just this much out that I lost all objectivity with it and shelved it. But looking at it again I now don't think it's too bad for an early attempt. Obviously I've got much further to go before I get a shot I'd be truly happy with, but this is something of a milestone for me. It was taken with a 50mm lens and drizzled three times in DSS. 53 x 8 second exposures at 400 ISO and 11 dark frames.
  2. Hi Guys, tonight I took my new telescope out for the first time since I got it, having had some issues since October that have restricted my viewing to Jupiter and the Moon and then the weather.... Anyway, tonight seemed promising, clear skies all day going into night albeit a little hazy here in South Oxfordshire as we are rather too close to the Thames. So, thinking I had fixed my issues I went out for a look. Can anyone help me with confirming my observations (particularly the DSO) and in particular can anyone PLEASE help me with my continued issues with my telescope? Here are my field notes: Weather: Clear, little/no breeze, bright Half Moon near zenith, LP was fairly high due to a couple of local houses and the moon, but I was in a 'shaded' area. Possibly 'fairly' hazy. Targets: Moon, Jupiter, Andromeda Galaxy (M31/NGC 224). Observations: Moon: Half moon, high in the sky VERY bright (note). Good views of the whole moon using a 25mm lens, but could not get my Samsung Galaxy S2 to take a decent picture as the image kept turning the moon into a fuzzy white blob. 25mm lens soon misted up so I switched lenses. I got Excellent views of craters and seas along the 'light/dark' divide using a X2 Barlow and a 10mm lens (see pic below taken with my Samsung Galaxy S2 with the moon approximately centred - I think). Notes: Why does my S2 not work with the 25mm EP but with the 10mm x2 Barlow setup? The moon is BRIGHT, use the moon filter next time! Jupiter: 25mm Lens showed Jupiter as a bright brown object about the size of the inside ring of a Polo mint with 4 moons in a loose diagonal (top left to bottom right) formation starting from approximately the centreline of Jupiter (offset to the left of course) down to below the planet offset by nearly equal distance to the bottom right. Switching to the 10mm with x2 Barlow Jupiter grew to about the size of a garden pea. I could make out two distinct brown bands in the centre and possibly a brown cap on the top (north) pole. No sign of the BRD, perhaps it was not good enough visibility or perhaps it was on the other side? Looking at the moons more closely from top left moving down to the right, the first moon (top left) seemed furthest away, next right seemed to be the closest and on the right side (and below) seemed to be the next closest followed by the final moon in the 'penultimate' furthest away position. Notes: Could getting a 6m or 4mm improve the image detail? Reference to 12DString website shows the moons as (top left to bottom right): Ganymede, Io, Europa, Callisto. Andromeda Galaxy (M31/NGC 224): Optics used throughout was a 25mm EP. Well, this really was an eye opener. IF what I think I saw was M31 then I am staggered at how little there was too look at. As I cannot be certain I was looking in the right place (see my plea for help below) I shall describe what I saw. M31 (till proven otherwise) appeared to be about twice to three time the size of a garden pea, appearing in a elliptical shape with the apex of each ellipse appearing top left and bottom right. Object had no colour and was almost impossible to notice. In addition, putting the telescope 'bang on' it made it 'disappear'. In order to view it, best results seemed to be gained with an off centre targeting and by looking in the opposite direction. -Does this sound about right for M31 to anyone? (More) issues with scope: A plea to anyone in the know! I have been having trouble getting the telescope to 'find' targets accurately despite a good 'sky align' 3 star alignment. Every time the scope seems to be out by about one to three 'fingers' in the lateral (up down) axis and perhaps a teeny/tiny bit to the right. I find this aberration to be very disconcerting as it makes gaining confidence in the telescope very difficult unless the target is self evident and bright (eg the moon or Jupiter). It also means that as someone who started the astronomy hobby about two months ago, I can't rely on its positioning to help find 'harder' targets like DSO's. As I have no point of reference as to what to look for (or where) it makes confidence and fun hard to come by. All reviews I have read of this scope say its great, especially for beginners and even a naff alignment will get good results. I spent an hour getting a great calibration of the red dot sight with the optics (on a 10mm lens) and I believe I am setting it up right - can anyone offer any observations or suggestions. I think I have set up the correct TZ (standard timing, (i.e. NOT daylight savings), universal time code) and I used an app on my phone for my Long/Lat and time derived from the GPS satellites (I have tested the app and its extremely accurate so this can't be at fault). -Please can anyone offer any advice? Regards, Sharpe
  3. From the album: DSO, Nebula, Galaxies, Comets etc

    M31, including M32 and M110, taken using my Canon 100D with 300mm lens mounted on SkyWatcher Star Adventurer. Stack of 18 images varying from 60 to 120 seconds.

    © @vicky050373

  4. From the album: Starchasing

    Mt first attempt at imaging M31, the Andromeda Galaxy at prime focus using my Nikon D-50 and my Orion 127mm Mak. You can see a few dust lanes in there!
  5. Anyone here seen M31 without any optical aid whatsoever, including specs, contact lenses etc. Being the most distant object visible to the naked eye, I often wonder about this. It wasnt lookin too bad through my 20*60s but still dim. There is not a chance I would see it without binos from my sky. Sometimes I can make out the Milkyway, but tonight wasnt such a night, altho the Orion Nebula looks fantastic through my binos. As does M45.
  6. M31, reprocessed, 5 and 10m exposures 18 frames (don't know the integration time anymore, neither the no. of flats and bias I messed around with this so much).I decided to keep it real on this one (I'm won't to overprocessing in my light-polluted area, so I don't even lose one filament of detail). After changing the file name on the subs,(RAW to Tif), resizing and cropping, I made a gradient removing flat for each of them, and processed them normally after flat application / subtraction. I forewent chasing details in favor of nice values, such as RGB 23/23/23, or as near as I could come to when processing, to find a blend between detail and a pleasing view.
  7. Here is a recent evolution of my post on getting more detail out of the M31 core. It resulted in Ole Alexander offering me more data to improve the core. He also kindly offered additional luminosity data that I added to the structures around the core. So, here is the result of this Norwegian-Swedish collaboration. His data is from a 12" f/3.9 Newton and mine from an Explore Scientific ED127 apo refractor. All with Canon EOS cameras. As you can see, there is more to the M31 core than a shining white ball
  8. You don't often see me in here thesedays I started this a while back, really to see whether I could successfully mosaic deep sky images - past efforts haven't always been totally successful. The poor weather over the past few months have greatly hampered progress, but things are now starting to move on. This version is just under 1/3rd linear size. It's been put together like this really to give me a guide as to which bits still need doing. There's a lot of work ahead...
  9. You could call this my first proper attempt at andromeda, thought I've imaged it quite a few times now. But this is the first time I've managed to get most of it in one picture, which required me to do a two-pane mosaic. The left side of the mosaic is stitched 27 subs of 2 minutes ISO 3200, while the right side is 28 subs, + 1 sub of 8 minutes ISO 800 (just to test what difference exposure contra ISO does to details). I am very pleased with the result of it, but I also discovered some of the pains of doing mosaics, as getting an even background was very hard. Gradient X-terminator would do a decent job, but couldn't quite nail it, so I used it in conjunction with a few other techniques. The stitching was easy and painless, as I just used Microsoft ICE. Some feedback on the processing would be lovely, as I am not sure if this is my final version. I've starred myself blind processing it.. 2-pane mosaic 56 subs (ISO 3200 and 800) 2 minute exposure (+one 8 minute) 1.96 hours Total Exposure Skywatcher 150pds Celestron Advanced VX Mount Nikon D5200 Explore Scientific HR Coma Corrector 7235x5838 pixels Stacked with DSS, stitched with Microsoft ICE, processed in Photoshop CS2
  10. Hello again, So I finally got out last night (30th July) for my first ever observation with the Skywatcher 200P I've had collecting dust for about 2 weeks now! The sky was cloud-free but with urban light pollution. I really struggled to use the standard straight finderscope - I don't know how people cope with those: I needed yoga positions Back Bend, Table Top and the Camel just to get my eye even close! I'll try it some more but I imagine I'll be purchasing a RACI finder asap!! By scanning with the main scope though I'm fairly sure I managed to find M13 at first. It didn't look quite like it does in "Left Turn at Orion" though - to get a similar-sized view of the Cluster I had the magnification set at 133x which is nearly double the view in the book for a Dobsonian under medium power (75x or 40'). I wondered whether this was more likely because the ambient light was drowning much of the size of the cluster out? It was really impressive to see nonetheless! Then I tried to find Andromeda... Which I thought I had, but it wasn't nearly as large or impressive as the book suggested. I was far more impressed with the Hercules Cluster through both viewfinders, in terms of size and clarity. Is there a chance that I hadn't in fact found Andromeda but some other Galaxy, or could it be a problem with the urban lighting/ difference in direction I was looking that made the difference?
  11. For those of you that followed the recent thread "M31 detailed core collaboration " it ended with Olly offering to exchange data so that we could produce a wide field image of M31 with both an amazing halo (from Olly's data) and a detailed core (from the data from Ole Alexander and me that turned out to be not far from that of the Hubble). Olly may be working on his own merged version, and it will most likely beat mine, so stay tuned. However, here is my current version. It was both tricky and fun to produce. At one point I reached the limit for how big files Photoshop CS5 could save (turned out to be 2 Gb). My challenge was to reach a compromise where the core was not too light to lose the detail and still harmonize with the whole image. I enclose a close up of the core to prove that the detail is still there and a comparison with the Hubble version. Comments and suggestions will be greatly appreciated!
  12. Toxophilus

    M31

    From the album: Deep Sky Objects

    Messier 31 (Andromeda Galaxy),32 and 101 Again taken in the same session a few weeks ago as M42 with a DSLR. Still need to reduce the amount of light polluion and other problems, but I'm fairly please with this. If you want more information the astrobin link is: http://www.astrobin.com/275715
  13. Leveye

    Andromeda

    From the album: iOptron ZEQ25GT

    © Chris Levitan all rights reserved

  14. I got a new telescope a few weeks ago, a Skywatcher 150P-DS, and I've just had it out yesterday, as the danish summer has been absolutely horrendous.. But it's only just now, that the astro-dark nights are returning again anyway. And what better easy target to test it out on, than the Andromeda Galaxy? But there were only like a total of 2-3 cloudless hours yesterday, so I only managed to get 26.5 minutes of 30 second subs, as I was also observing and getting used to the new scope. The focus is a slight bit off, as I've still to make a bahtinov mask that fits this one, and I can see that I really do need to get my hands on a coma-corrector. I am currently looking at the Explore Scientific HR Coma Corrector. People have recommended the Baader Mark-III MPCC, but some have also complained about it introducing spherical aberration? Other than those issues, I am very pleased with the quality of this scope and how easy it was to produce these images. Just the fact that the DSLR can actually reach prime-focus, without the use of a barlow-lens or something similar, is just a big plus compared to what I've had to deal with! I'll give it some longer tests when the next dark, cloudless nights hits, which might be a while! The field of view of the 150P-DS is a bit too small for something like M32, so I might make a 2-pane mosaic sometime. Skywatcher 150P-DS Celestron AVX Nikon D5200 Integration Time - 26.5 minutes 53 subs - 30 seconds each Manually Stacked and Processed in Photoshop CS2
  15. This a rework of data I captured last november. Previously the intent was to reveal the faint dust lanes within this galaxy. Now I aimed for the very faint tidal stream that connects this galaxy to its neighbour M31. The stream is the result of gravitational interactions between M110 and M31. (click on the image for a larger version) To show the tidal structure and weak halo surrounding M110, here's an inverted and superstretched version. 2.2 hours of integration time is really not enough to do this target justice, so I will add to it later this year. Image details: L: 14 x 3 minutes, gain 0, -30 C RGB 6 x 5 minutes (each), gain 0, -30 C total integration time: 2.2 hours Processed in PixInsight (Gear as per my signature.)
  16. So awesome to see stunning Andromeda in my skies overhead again I have waited almost 2 years for perfect conditions and it all came together for me last night here is my take on this Jewel in space finally please give me your thoughts on the processing it is a work in progress I will add more time to it as the sky permits. 2 hours 25 minutes in 5 minute subs 15 darks 50 bias ISO 800 unmodded Canon 5DMKiii with an AT65EDQ stacked in DSS and tweeked in LR. It's going to be a fantastic fall with comet ISON approaching look up everyone!
  17. his is a quick 1hr 30 mins or 18 x 300 secs at ISO 800 with the cooled DSLR. I have reprocessed this so many times i have actually lost count, my eyes hurt from staring at the screen and as such i turn it over to you guys. It was windy too, seeing wasn't great and there was some high level clouds plus, as always, RH was very high. Kit used HEQ5 Pro, SWED80 0.8 FF/FR, Canon 550D full spec and cooled, IDAS MFA D1 Filter. I tried not to use too much NR and as Paddy recommended better star control, i paid attention and tried to control them better. I may have overdone the star colours though. I wish i could have had more time on target, but we get what we can take. It's not pretty but i am happy given the limited time.
  18. Comet C/2011 L4 PanSTARRS from the Cheviot Hills near Jedburgh on 3rd April 2013. Pentax K5 Pentax 165mm lens @ f5.6 iso 800 x17 60sec exposures No Flat Frames No Dark Frames (Quick & Dirty) Comet C2011 L4 PanSTARRS & Andromeda Galaxy by mikeyscope, on Flickr
  19. Hi guys!I finally managed to decide I'm done processing my insane photoproject of digging deep inside M31.Long story short: One picture of M31, 27megapixel 2x2 mosaic, +3 months of imaging in crappy weather, 18 separate nights, 534 separate exposures, +150 hours of processing, 1233 manually annotated objects inside M31.(images in the end of this post, lots of "bla bla" first)I had a great start last autumn with loads of clear nights, which made me think it be a quick stab to make a 2x2 mosaic (my first mosaic btw) of M 31 since my f.o.v is to narrow to capture M31 in one frame...But pretty much as soon as I started, the swedish weather turned into a mess which made me shoot M31 during 18(!) separate nights, during more than 3 months(!).I also spent countless of hours studying the M31 Atlas available online at: http://ned.ipac.caltech.edu/level5/ANDROMEDA_Atlas/frames.htmlIt contains +40 annotated plates of M31 captured with Kitts Peak 4m telescope and contains +1000 globular clusters, open clusters, stellar ascossiations and dust-clouds inside M31.By looking at those charts, I manually annotated 1233 objects in my image, along with names & outlines (except for dustcloud-names, since it cluttered the image too much)Here's what I found within my image:232 Globular Clusters235 Open Clusters140 Stellar Assosciations626 Dust CloudsData captured using ACP + SchedulerCalibration was done in Maxim, registration & stacking + mosaic-merging done in PI, the rest in photoshop.Gear:Telescope: Orion Optics AG12Camera: QSI 583 wsg-8Mount: 10Micron GM 2000 HPSGuiding: UnguidedSummary of exposures:Lum: 364 x 180s / 1092 minutesRed: 39 x 300s / 195 minutesGreen : 36 x 300s / 180 minutesBlue : 43 x 300s / 215 minutesHa : 52 x 900s / 780 minutesTotal time: 2462 minutes / 41 hoursHere are a few 100% crops so you can appreciate the level of resolution and the hard work behind it.(note Hubbles famous Cepheid, marked as "Var 1")Also, here's one of the charts used for annotation along with a matching crop from my image:If you're not using a mobile device, I highly recommend following the links to my homepage where the image is presented in full resolution along with selectable annotation-layers containing the following:Globular ClustersOpen ClustersDark NebulaeStellar AssociationsGrid + DSO'sIt was really mind-boggling processing a image of this scale, realizing that all those fuzzy spots visible inside the galaxy are actually open clusters and globular clusters, along with Ha-regions and much more!Unfortunately mobile devices usually downscale the huge 27MP resolution images and have trouble with the annotation-layers, so if you're using a computer(highly recommended), click the following images to be taken to my homepage where you can select which layers of annotation to be displayed, as well as the choice of 3 different resolutions. Otherwise there are direct-links to all versions below the images in this thread.Direct-links to images, No annotation:http://www.grinderphoto.se/pics/Med_102.jpg - (1024px width)http://www.grinderphoto.se/pics/Large_102.jpg - (3500px width)http://www.grinderphoto.se/pics/Full_102.jpg - (+6000px width)Direct-links to images, Annotated:http://www.grinderphoto.se/pics/Med_102_Annotated.jpg - (1024px width)http://www.grinderphoto.se/pics/Large_102_Annotated.jpg - (3500px width)http://www.grinderphoto.se/pics/Full_102_Annotated.jpg - (+6000px width)Thanks for watching, I hope you enjoy exploring all the details in this fantastic galaxy!Best RegardsJonas Grindehttp://www.grinderphoto.se
  20. From the album: Canon EOS 1100D Images

    M31, reprocessed, 5 and 10m exposures 18 frames (don't know the integration time anymore, neither the no. of flats and bias I messed around with this so much). I decided to keep it real on this one (I'm won't to overprocessing in my light-polluted area, so I don't even lose one filament of detail). After changing the file name on the subs,(RAW to Tif), resizing and cropping, I made a gradient removing flat for each of them, and processed them normally after flat application / subtraction. I forewent chasing details in favor of nice values, such as RGB 23/23/23, or as near as I could come to when processing, to find a blend between detail and a pleasing view.
  21. From the album: The-MathMog's Images

    2-pane mosaic 56 subs (ISO 3200 and 800) 2 minute exposure (+one 8 minute) Skywatcher 150pds Celestron Advanced VX Mount Nikon D5200 Explore Scientific HR Coma Corrector 7235x5838 pixels
  22. From the album: The-MathMog's Images

    Skywatcher 150P-DS Celestron AVX Nikon D5200 Integration Time - 26.5 minutes 53 subs - 30 seconds each Manually Stacked and Processed in Photoshop CS2 Denmark
  23. After a first attempt at M31 a couple of weeks ago, Mrs WaveSoarer and I had another go this evening with her SLR at prime focus. I managed to focus the camera really poorly at our first go this evening and the stars were all polo mint shaped. We then followed advice from our attempt on the ring nebula and we took a long exposure and then checked the focusing on the screen on the back of the camera body. All seemed well and I even remembered to lock the focus to avoid it slipping. We reduced the ISO this time from 1600 to 800 to help reduce the noise and Mrs WaveSoarer stacked 25 of the 30s exposures in photoshop. The scope was tracking with a reasonably good polar alignment. We're quite happy with the result and I rotated the camera to align the galaxy with the diagonal of the frame. We just missed M32, though, which you can just see as the glow at the bottom right of the frame. There are no dark images used and we'll have a go at that some day soon. You can see a purple artifact at top left which comes from the sensor, this appears on all the images we've taken so far, and we'll need to use darks to correct this out. We could have used far fewer subs to produce a similar result but we used all the data we had.
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