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Found 19 results

  1. steppenwolf

    An early Pickering's Triangle

    Pickering’s Triangle (Seimis 3-188) It is a little early in the season to be imaging this object as it didn’t appear above my local horizon until 00:50 when I started the project earlier this month but with nights getting shorter as we approach the summer solstice, it made sense to make an early start even though it took several nights to capture the data while ducking and diving between the clouds and early morning mist! Discovery Pickering’s Triangle is part of the supernova remnant known as The Veil Nebula in Cygnus. The Veil Nebula itself was discovered by William Herschel in September, 1784 but this faint region was only later discovered photographically in 1904 by Williamina Fleming at the Harvard Observatory. The discovery was made post publication of the New General Catalogue (NGC) so it isn’t included in the catalogue. Although it wouldn’t happen today (I hope!), the custom of the time was to credit the discovery to the lead astronomer, in this case Edward Charles Pickering, the director of the observatory. Image Stats Mount: Mesu 200 Telescope: Sky-Watcher Esprit 150 Flattener: Sky-Watcher Esprit specific Camera: QSI 683 WSG-8 Filter: Astrodon 3nm Ha and 3nm OIII Subframes: 6 x 1800 sec Ha, 13 x 1800 sec OIII Integration: 9.5 hours Control: CCD Commander Capture: MaxIm DL Calibration, Stacking and Deconvolution: PixInsight Post-Processing: PhotoShop PS3 Description The nebula can be found in the north-west quadrant of the Veil Nebula near NGC 6974 and 79 (see whole Veil Nebula image below). Lying around 1,400 light years away, the beautiful filamentary elements are the expanding shock-wave from the progenitor star that went supernova here somewhere between 5,000 and 10,000 years ago. Position within the Veil Nebula Visually, the nebula responds well to the use of an OIII filter as the region is rich in OIII emissions as can be seen in the blue/green filaments in the above images. Photographically this is a wonderful object that responds well to both LRGB and narrowband imaging and the example shown here was captured using Ha and OIII filters. Although there are sulphur emissions (SII) in this region, this object responds well to my favourite imaging method of 'bi-colour’. This process uses just Ha and OIII filtration wherein the OIII data is mapped to both the ‘Green’ and ‘Blue’ channels and the Ha is mapped to the ‘Red’ channel. The greyscale images below show the individual Ha (left) and OIII (right) images used to produce this image. As you can see from the 'Stats' above, I have a whole load more Ha to collect to complete the image! The individual Ha and OIII images
  2. The Veil Nebula is a diffuse nebula located in the northern constellation Cygnus, the Swan. Also known as Witch’s Broom Nebula, Bridal Veil Nebula, Cirrus Nebula, or Filamentary Nebula, it constitutes the visible parts of the Cygnus Loop, a supernova remnant in Cygnus. It is located at an approximate distance of 1,470 light years from Earth. In this wide shot you can see the three main parts: the Eastern Veil, the Western Veil, and Fleming’s Triangle (Pickering’s Triangle). Full resolution: http://www.celestialpixels.com/Nebulae/i-zcwHVLh/A Telescope: Telescope: TAK FSQ85 Camera: QSI 683 Filters: RGB + Ha + O3 Total Exposure: 12h Location: Mt Parnon @ 1430m. Greece
  3. Michael1971

    NGC6960

    From the album: DSO's

    Veil Nebula, first try

    © MichaelB

  4. WaveSoarer

    Veil Nebula with SW 100p

    What with holidays, poor weather and work commitments, it's been a little while since I've had the chance to do some observing. With the nights really starting to close in again the opportunities are starting to present themselves again. Last night was crystal clear and so I decided to get my SW 100p out and have a view of the veil nebula with my OIII filter. I had used the 100p to view sections of the veil with a 20 mm EP in combination with the OIII filter but last night I wanted to try my 32 mm EP to see how much I could fit in to the field of view. Sure enough, after setting up on the Western Veil (NGC 6960) I could see the wisps of the broomstick without too much difficulty. I then slewed across to The Eastern Veil (NGC6992) and its arc was very well defined and comparatively bright. A quick adjustment placed the full complex, East to West, in the field of view and even Pickering's Triangular Wisp was clearly visible. It was fairly mesmerising to see the span of the full nebula and, although it lacked the detail that I can extract with my 200p, the view with my 100p is very rewarding and the simplicity of the small dobs base making the scope almost effortless, and fast, to set up and use.
  5. Davide Simonetti

    The Veil Nebula

    It's always fun to image a new target and it was worth using a rare trip to a place with much darker skies (Kelvedon Common in Essex) to try something a bit more challenging. This could have done with more exposure but nights are short at this time of year and dawn put a stop to the session. 29 x 120 second exposures at 400 ISO (58 minutes integration time). 12 x dark frames 79 x flat frames 21 x bias/offset frames (subtracted from flat frames only) Captured with APT Guided with PHD2 Processed in Nebulosity and Photoshop Equipment: Sky-Watcher Explorer-150PDS Skywatcher EQ5 Mount Orion 50mm Mini Guide Scope ZWO ASI120 MC imaging and guiding camera Canon 700D DSLR
  6. GlassWalker

    Veil mk3 - Hubble palette

    From the album: Widefield DSO

    34 x Ha, Astronomik 12nm filter, modified Canon 450D 28 x SII, Astronomik 12nm filter, modified Canon 450D 61 x OIII, Astronomik 12nm filter, standard Canon 600D All 4m subs, with flats. Hubble palette: R=SII, G=Ha, B=OIII
  7. alan4908

    Veil Nebula (SH2-103)

    From the album: Deep Sky II

    A bi-colour image with Ha mapped to red and OIII to blue. Synthetic green was generated by Noel Carboni's actions. I found that the data was challenging to process since it was quite noisy, it would have been good to have more subframes, but I quite like the overall result. I decided to introduce a bit of colour contrast so the upper part of the image has more red and the lower more brown. Apart from the Veil filaments, two bonus items to look out are a "flaming skull" (bottom left) and a "miniature blue lightening storm" (bottom center). LIGHTS: 11 Ha; 6 OII x 1800s. DARKS: 30; FLATS:40; BIAS: 100 all at -20C.
  8. GlassWalker

    Veil mk3

    With a 3rd night of data added, here's another process of the Veil nebula. 34 x Ha, Astronomik 12nm filter, modified Canon 450D 28 x SII, Astronomik 12nm filter, modified Canon 450D 61 x OIII, Astronomik 12nm filter, standard Canon 600D All 4m subs, with flats. Pseudo real colour created by adding all the above as RGB. Hubble palette: R=SII, G=Ha, B=OIII I think this just isn't a subject that lends itself to the Hubble palette. Also I'm not happy with my processing. I went heavy on star and noise reduction, but that's blurring the fine lines of the nebula too. I suspect this is one I'll revisit again. The noise levels of the Ha and SII are visible stronger than the OIII, so I think I'll spend yet another night on it some time to boost that some more.
  9. From the album: Deep Sky

    This is the Western part of the Veil Nebula (known as the Witch's Broom), a supernova remnant in the constellation of Cygnus. This image was taken on Sunday 10th November 2013). The seeing wasn't too great due to the jet stream, and I was battling the moon which was nearly half full and within 45 degrees of the target at a guess. This is an unmodified DSLR version, hence the relative lack of Red/Ha in the nebula. Imaging: Sky-Watcher Evostar 80ED DS-Pro, Sky-Watcher 0.85x Reducer, Hutech IDAS LPS P2 2", Canon EOS 500D (Unmodified), APT Guiding: Orion ST80, QHY 5, PHD Guiding Mount: Sky-Watcher NEQ6, EQMod, AstroTortilla, Processing: PixInsight 1.8 RC7 Lights: 5 x 1800" ISO 400 Darks: 109 Flats: 64 Bias: 330

    © Copyright Ian Lauwerys, All Rights Reserved.

  10. I love this time of year but I've been hexed with bad imaging conditions and some equipment trouble so far this month. I was finally able to grab a few keepers and bring you one of my favorite DSO up there. NGC6960 The Witch's Broom. 17-3 minute lights,15 darks and 50 bias frames. Stacked in DSS and stretched a bit in PS. Final tweaking in LR. Hope the processing isn't too scary. Let me know what you think.
  11. I had a quick go at the Witch's Broom on Sunday (10/11/13). Seeing wasn't too great, and I was battling the moon which was within 45 degrees of the target at a guess. This is an unmodded DSLR version, hence the relative lack of Red/Ha in the nebula. I've pushed it as far as I think I can without turning the whole background and fainter stars completely red. AstroBin version: http://www.astrobin.com/64051/0/ Capture Details Frames: 5x1800" ISO400Imaging scopes: Sky-Watcher Evostar 80ED DS-ProFocal reducer: Sky-Watcher 0.85xFilter: Hutech IDAS LPS P2 2"Imaging camera: Canon EOS 500D UnmodifiedMount: Sky-Watcher NEQ6Guiding scope: Orion ST80Guiding camera: QHY 5Capture Software: APT, PHD guiding, AstroTortilla, EQModMoon: Half Full, within 45 degreesProcessing: PixInsight 1.8 RC7Darks: 109Flats: 64Bias: 330
  12. I made it out to my dark site on Friday evening, a few high wispy clouds in the sky but for the most part it was quite nice out. The moon was already low and near setting, and I had just received my new Astronomik OIII filter, so I decided to try and find a few objects that have given me fits from the get-go. I started the night taking a long hard look at the double cluster, something I only recently discovered, and then swung the scope around to Albireo, another newer sight for me. After getting my eyes full of stars, I affixed the filter to my ES 30MM 82° eyepiece. I swung the scope over to the Eastern Veil and WHOA!!!!!! There it was, in all its glory. A little too big to fit the whole thing in the EP at once, I kept swinging the scope back and forth over the length of the nebula, totally blown away with how clear it suddenly was. I had been wanting to see this object from day 1, and have read about people's reactions when they first saw it. I was no different. I don't even know how long I spent swinging the scope back and forth, just taking it all in as if it would disappear at any second. As my first light adrenaline calmed down, I swung the scope down and found the Western Veil as well, another stunning site with 52 Cyg bisecting it and lighting it up so brightly! Just amazing! I never tired of looking at the veil, but eventually wanted to try to bag a couple more objects. I panned all of the way around to the Rosette Nebula. I found the telltale cluster that lies in the middle of the nebula, and was soon admiring the light ring of smoke surrounding the cluster. With a little time and effort, I was able to tease out enough detail to really see what the Rosette was all about, and once again, I was not disappointed. Next came the Helix Nebula, another object I've tried and failed to find in the past. This night I was successful, though after seeing the prior 2 targets the Helix was more of just a passing find for the checklist. I scoped out M42 with the OIII filter and was able to make out some details I hadn't previously seen. Since I was already there, I switched to a smaller EP and got some magnification going so I could observe the trapezium, once again managing to see the "e" star but no "f". I still missed some of the major objects on my list. I have yet to see the Heart or Soul Nebulas and couldn't find them on this night. I have yet to get any substantial views of the North America Nebula. I missed the Witch Head and Cocoon as well. I took the filters off and surfed around the Universe bagging a few beautiful galaxies, including Stephan's Quintet and the Deerlick Cluster. I scoped out NGC 777 in Triangulum, always a cool object to tease out of the dark skies. I saw NGC 253, the Sculptor Galaxy, for my first time. This is a cool target to which I need to return. A few globulars and open clusters later, and I was getting chilly and ready to call it a night. All in all I had a great session and managed first light on a few major targets I'd been hoping to see for a long time. As always, there was plenty that I didn't get around to looking for, and more that I missed with an attempt, serving only to heighten my desire to find them on a future night. I'm glad all you folks across the pond are getting some nice views, and it sounds like everyone but me was out looking at the Horsey. Maybe I'll add that my my advanced list of future challenges. Thanks for reading!
  13. Hi everyone, Long, long time since I've posted. Finally some clear skies in my Summer holidays to take advantage of! Full version on AstroBin: http://www.astrobin.com/full/210107/0/ Ha: 28x10min OIII: 32x10min 10hrs Total, Atik 314L+, ED80 I started a 2nd pane in Ha but I'm off back to university now so I won't finish it in colour this year. Thanks for looking! Jordan
  14. GlassWalker

    Veil mk3 - pseudo-real colour

    From the album: Widefield DSO

    34 x Ha, Astronomik 12nm filter, modified Canon 450D 28 x SII, Astronomik 12nm filter, modified Canon 450D 61 x OIII, Astronomik 12nm filter, standard Canon 600D All 4m subs, with flats. Pseudo real colour created by adding all the above as RGB.
  15. alan4908

    SH2-103 (Veil nebula)

    I had originally decided to attempt my second Hubble Palette image but abandoned this due to the high noise levels of my SII data. So, changing strategy to a bi-colour approach, I mapped the Ha and OIII data to red and blue, respectively, with a synthetic green channel generated via Noel Carboni's PS actions. I could have really done with capturing much more data but decided to see what I could process out of the noisy subframes. Apart from the filaments of the Veil nebula, I was quite pleased to see what to me looked like a flaming skull (bottom left) and a small blue lightning storm (bottom centre). Constructive criticism would be welcome LIGHTS: Ha: 11, OIII: 6 x 1800s; DARKS: 30; BIAS:100, FLATS:40 all at -20C. Alan
  16. After several weeks of not pulling out the scope I was pleased to finally have a chance to hit a clear, dark sky location. Red Rock State Park in California was the location du jour - a Bortle 2 location I hit when ever in this part of the country on business. Conditions were great with temperatures in the low 80s (F) and negligible winds. A light haze lingered on the horizon due to stronger winds earlier in the day. After judging conditions were OK when M65, M66, and NGC 3628 were all visible a great night began. I had wanted to do some deep deep observing so I searched SkyTools3 for quasars within the ability of my scope - the listed came up with a couple that I hadn't heard of before so i got excited. First up was HE 1106-2321 in Crater - listed as a mag 13.7 quasar. Despite not having star hopped in several weeks I found it easiest to hop down from Beta Crt to a mag 8.9 star that served as a base. From there a line of three stars led away to a strong L asterism. The quasar was between the first two in the line...but was FAINT. I had to move magnification up to 240x to pull out the faint photons in averted vision. I was able to get a clear view twice while the scope was slowly moving but upon only viewed faintly a few other times. A mag 13.2 star was more easily visible in the proximity. Next up was moving up to Virgo for SN2012cg. Hopping through several galaxies I was able to find the supernova glowing brightly (may have been a touch brighter than the listed mag 12.0). It overpowered it's host galaxy NGC 4424...with the galaxy's glow only possible with averted vision away from the supernova. The nova is very close to the galactic core. Also in the area NGC 4417 and NGC 4445 were faintly observed - just faint fuzzies. I swung the scope over to UMa and star hopped over to MKN 421 which was supposed to be rather difficult to find because not much is in the local area. But I found a double kite (or diamond) asterism that made locating the quasar pretty easy. The mag 6 stars nearby nearly overpowered the quasar but it was visible with averted vision - not that it was too faint...but the other stars just overpowered it. Taking a break from the ultra deep observing I moved over to Antares and observed M 4 and NGC 6144. M 4 was stunning at 120x looking like the many legs of a spider streaming away from the center point. NGC 6144 is a faint GC that wasn't much more than a grainy cotton ball - I imagine upping the magnification may have given a better view...but I was off again. Next up was the naked eye Lagoon Nebula which glowed very nicely at 120x and 240x. I went with and without UHC filter and was pleased with both views. The dark vein running through the nebula stood out best at 240x but was still visible at 120x. In the vicinity observations included the Omega Nebula (very nice with and without UHC filter), a few open clusters, and even the Ring Nebula which I like best without the filter as I get more color). I split the Double Double while around Vega. The final joy of the night was observing both the east and west parts of the Veil Nebula - just a whisper was visible with an unfiltered view but the UHC filter made it stand out very nicely. I had no idea that this nebula was soo big. Had to go with 46x to see it on any scale. A pretty good night - 2 new quasars, 1 new supernova, and a handful of nebula and faint galaxies. Today I'm off to Las Vegas and if i don't melt in the 100+ (F) heat I hope to put in some Bortle 1 viewing in the desert on Thursday and Friday. My scope has been begging for an even darker location. Could be fun! Happy hunting!
  17. So I think I may be dreaming but there has been lots of clear nights here recently (and an almost whole week of clear skies forecast to come!) This has meant that I have been able to gather lots of data. I have completed gathering the HA and OIII data for stage one and two. Total time so far is 12 Hours 30 minutes total integration time. I have done a quick process of the data in a HOO palette I am quite happy so far. One side seems lighter than the other so I'll have to work on how I produce the mosaic I can't start the SII stages as I haven't purchased that filter yet so I'm going to press on with the HA and OIII and see if I can hit my bonus goals for these filters of 5 hours per mosaic pane to produce an image of 20 hours integration time in a HOO Palette Stage one - Completed Stage two - Completed
  18. How's going people? Long time since last post due to bright Swedish summer nights, gear-tuning and automation fiddling, but now I'm up & running again. I'm starting off the dark season with one of my favorite targets inside the cygnus loop, NGC 6992, east veil nebula. The subs where acquired during three moonlit nights, all subs unguided. (shooting other targets too, so subs are shot when the target is in the highest position in the sky, thanks to ACP automation) I've only used two filters for this image, Ha & O3 (both 5nm). I mixed the color close to Ha/O3/O3 as R/G/B , with slight different weights in G & B, to reach a more blue tone rather than cyan. Both Ha & O3 was used as luminance-data. I also created a "natural" star-color mix of the layers, with Ha / Ha+O3 / O3 as R/G/B and adjusted filterweights until I had a natural mix of yellow & blue (go Sweden!) stars, which was later applied as color-data with a star-mask on top of the image. The Subs (unguided): Ha : 19 x 600s / 190 minutes O3 : 12 x 600s / 120 minutes Total time: 310 minutes / 5.2 hours The Scope: Orion Optics AG12 Aperture: 12" Focal lenght: 1140mm Focal ratio: f/3.8 Imaging scale: 0.98" / pixel together with my QSI 583 The Mount: 10 Micron GM 2000 HPS All subs unguided The Camera: QSI 583 wsg (with 8-position filterwheel upgrade) Filters: Astrodon Click image for full resolution: It's been so much fun to see this object in the high resolution my setup produces, so many faint formations of nebulosity I've never seen before. I also recommend to have a peek at the following link, it's crazy how different the same object can look, imaged through different wavelengths: Click here to see the difference between the Ha & O3 at my homepage, with a "mouse-over" function that switches between the two Thanks a lot for watching Best Regards Jonas Grinde http://www.grinderphoto.se
  19. So the last week was kind and I managed another couple of sessions under the stars. The lack of dark nights has made this a labor of love indeed. I have gathered 5 hours for each Ha pane so I have managed one of my bonus goals. Total integration time so far is 17 Hours: I may not add any more data to this until the darker skies return :sad: Project status Stage 1 - Complete Stage 2 - Complete Stage 3 - Skipped Stage 4 - 0% Complete Stage 5 - Complete
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