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Found 21 results

  1. alexbb

    Bubble

    The bubble nebula. Not much to add about the target itself as it is already popular enough. A combination of HOO shot with the ASI1600MMC + Astronomik narrowband filters through the 200mm newtonian tube removed from the dobson base and put on the EQ6-R. About 6h of exposure through the Oxygen filter and about 9h through the Hydrogen filter. Clicking on the pictures will redirect to the astrobin images where you can watch them in full resolution. Crop close-up And widefield Thanks for watching and clear skies to you too! Alex
  2. Second image with QSI660. 10x200second subs in Ha, Oiii and Sii. Combined in Maxim with Hubble palette (ish0. the green seems a bit strong, but I suppose that reflects the high Ha levels being dominant.) Darks and Bias frames used for calibration. No flats.
  3. Finally making progress with guiding and dithering and the autofocuser , sw200pds , modded canon 1000D , Eq6 belt mod -7x300sec 25 flats -25x Bias as darks
  4. I'd have my main tent... then this next to it. Although there needs to be a moisture trap in there to prevent the warm smug astronomer having their views messed up! http://brightside.me/creativity-home/this-incredible-transparent-bubble-tent-lets-you-sleep-under-the-stars-106405/
  5. Hi all, Last November I imaged the Bubble on a few occations with my Meade LX200-ACF and Nikon D7000 on SW HEQ5 Pro, guided with a standalone Nexguider. I managed some 10 hours under pretty good skies, plus 2 hours with H-alpha filter from my small town backyard. So almost 12 hours together (after rejecting every sub with just the slightest defect like non-circular or diffuse small stars). Registering (aligning) was done in Registar, and stacking & processing in PS. I also used the Straton software that removes (most of) the stars, after initial stretching, then I put them back using the "lighten" blending mode. C & C most welcome Ragnar
  6. From the album: DSO, Nebula, Galaxies, Comets etc

    The result of one of my imaging sessions from Kelling Heath Autumn Equinox star party NGC 7635 The Bubble Nebula in Cassiopeia Imaged using Atik 314L monochrome CCD camera and William Optics FLT-110 refractor on NEQ6 Pro SynScan mount 10 x 300 second subs in H-alpha

    © vicky050373

  7. Well, I can't remember the last time I actually posted an image. Not this year & I don't remember anything of last year either! Whilst I've been collecting data over that period, I realise I get more of a kick out of the whole techy side of putting the bits together, automating it all & capturing the data. When it comes to processing I never seem to have the time & patience & just end up frustrating myself overcooking things when I do. I thought it about time to have another go & soon realised anything I actually had once known was long forgotten. So, I've been reading through Warren Keller's Inside PixInsight & thought I'd practice on some 12.5 hrs of data on NGC7635 collected over the 5th - 10th of this month. As I'm about to post this I can already see quite a few things need sorting out in the next version & I think I need to go back & start again but hey ho, I'll post it anyway otherwise it'll be next year before I know it! I've also got 14.5 hrs of SII & over 15 hrs of OIII plus a couple of hours or so each of RGB for the stars. I've thrown more away! So you can imagine, I've no idea when I'll get around to the full image! Tips & critique welcome as usual please... Scope: RC8 with AP 0.67 reducer Camera: Atik 314L+ Filter: Astrodon 5nm Ha Subs: 50 x 900 Processed in PixInsight
  8. More from last night... A quick Andromeda. Don't look at Bob's for comparison and I might get away with it! Canon 600D unmodified + Astronomik CLS filter. Sigma 120-300 f/2.8 OS. 19x2m M52 and bubble nebula. Need more focal length on this one. Canon 600D unmodified + Astronomik CLS filter. Sigma 120-300 f/2.8 OS. 17x2m 100% crop of bubble.
  9. I've come to image you again... The Bubble is still in a good position in the sky for me - I can only image west, so I thought I'd do an experiment and go for as much data as I can. This is what I've come up with imaging over 5 nights, selecting the best 100+ subs, totalling over 8 hours. I know you'll think it's mad, but the return I have through the everlasting smog is a fraction of what anyone countryside would enjoy... I tried Astro Arts digital development filter for the first time, and the gradient plus vignetting filter. The gradient plug in for PS takes a few seconds, the AA one a few minutes - so I thought that maybe it's quite good then. My initial thoughts are that these are very useful tools indeed. The stars had a dose of Noels Actions, and the brightest had a stretch of their own - a first for me.
  10. Imd

    Bubble Nebula

    From the album: guiding

  11. GlassWalker

    Bubble crop

    From the album: Widefield DSO

    100% crop. Need more focal length on this one. Canon 600D unmodified + Astronomik CLS filter. Sigma 120-300 f/2.8 OS. 17x2m
  12. Hi Second experiment with PHD2. Got to say drift align has made a huge difference to my guide graph. I use to have to sit at pc and reset guiding every few subs but now for the second time with drift i never had to touch it through 12 x 5 min subs. Anyway 12 x 5 min subs and 12 each cal frames EOS 1100D with baader mpcc3 plus neodynum on astromaster 130 eq guided with ST80 AND ASI120MM on bresser Exos 2 mount
  13. From the album: Messier and NGC Objects

    7 x 600second Ha 10 x 600second OIII 10 x 600second darks Skywatcher 130pds, HEQ5 QHY Img2pro 6nm Ha Astronomik Clip filter 12nm OIII Astronomik Clip filter

    © A.Woodward, 2016

  14. From the album: Deep Sky III

    Quite a short integration time for me (4.3 hours) basically because the LRGB image is largely made up of test shots of my new unguided imaging set up. I still haven't quite perfected the art of magneta star elimination such that the results looks good - I think I shall have do a bit more research on the topic. The image was processed in PS with the exception of Pixinsight which was used for DBE, Colour Calibration, SCNR Green and Multiscale Linear Transform, I was particularly impressed with the latter function as a method of extracting a little more detail from the bubble region. LIGHTS: L:8; R:6:G:5:B:7 x 600s. DARKS:20, BIAS:100, FLATS:40 - all at -20C.
  15. Hi here's an image I took over the last couple of weeks. Its 30 x 10mins of Ha and 9 x 10mins each of RGB. I'm relatively new to AP so still getting to grips with everything (especially processing). I've read on here that using Ha as a lum file is not advisable so would really appreciate any advice on combing Ha with RGB in this type of image. Would adding Lum, Oiii or S data help. All feedback would be gratefully received. Thanks Dec
  16. Bubble imaged this morning between 2am and 6am. 2h25m integration. 12nm Astronomik Ha filter 127mm Ascension Atik 428Ex No calibration..
  17. I decided to go for an LRGB rendition of the Bubble nebula since the red channel is relatively bright. I extracted the data mainly from the various test shots of my new unguided imaging setup (an Esprit 150 on a GM1000HPS) which gives 0.7 arc seconds/pixel with my CCD. Having run yet more V-curves with FocusMax, to improve my focusing precision, I'm now of the opinion that my seeing is much better than I had previously thought, last night it was below 2 arc seconds, so having a low plate scale should help resolve DSO details. The image below represents just over 4 hours of integration time. Alan LIGHTS: 8; R:6: G:5: B:7 x 600s. DARKS:20; FLATS:40; BIAS: 100 all at -20C.
  18. Started on a bubble image tonight but the sky lower down is clear so I've switched targets - will come back to the bubble another night Managed to get 3x1800s before moving targets Hope you like...
  19. GlassWalker

    M52 and bubble

    From the album: Widefield DSO

    Need more focal length on this one. Canon 600D unmodified + Astronomik CLS filter. Sigma 120-300 f/2.8 OS. 17x2m
  20. From the album: Deep Sky III

    A (slight) reprocess of the Bubble nebula which is also in this album. Here, I decided to focus on the medium bright stars and added slightly less luminescence in order to reduce their size and also increase colour. To shrink the stars slightly and also to make the star cores less white, I used the Pixinsight Erossion filter (under Morphological Transformation). To prevent the cores become too dim, I followed an Adam Block tutorial video recommendation and selected the 5 x 5 pixel diamond kernal filter.
  21. This is the first such image from my Mewlon. As most may know I have struggled to use the Mewlon from my location, since it need excellent skys to get the most from it. However, I have spent a lot on this telescope and definately want to get more use under my skys with it, therefore, back in October 2012 I modified it with the new corrector baffle system designed to eliminate coma. The Mewlon is a Dall-kirham cassegain telescope and these have the best on axis optical performance; however, they do have off-axis coma inherrent in their design. The corrector baffle solves this issue and lowers the effective focal length, which is what I was interested in! With the baffle in place the focal ratio drops from F12 to F10, not much change there? But with the new focal reducer it drops to F7, just a little below 2m focal length and thats the change that I was looking for. This image of the Bubble is taken a F7 using the Mewlon. The coditions were average (Seeing & Transparency) and yet I was able to use the Mewlon!!! Its not all be pain sailing, I have also had to learn to drift align on the pole. To do this I use Metaguide since its also used to confirm that the collimation of the Mewlon is spot on. Metaguide is actually able to measure the drift and report back the new value after your adjustments, so you know very quickly if you are going in the wrong direction, which is great. Anyway the image capture was as follows; Red 8x300sec Blue 8x300sec Green 8x300sec Lum 8x300sec HA 10x600sec So about 4.5hours in total, probably I need another night to get the most from the image? Another important point is at the moment I cannot flat field the Mewlon, I need to build a light box!!! This would also improve the image quality eventually. I hope you like it? I'm very pleased with the results.
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