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Found 10 results

  1. From the album: Mike's Images

    The Lagoon Nebula ( Messier 8, NGC 6523 ) in the constellation Sagittarius - by Mike O'Day ( https://500px.com/mikeoday ) The Laboon Nebula ( M8 ) is visible to the naked eye under dark skies from most latitudes except the far north. Seemingly covering an area about three times that of the full Moon, M8 actually covers an area somewhat greater than 110 light years and is around 4300 light years from Earth in the Sagittarius-Carina spiral arm of the Milkyway galaxy. Links: https://500px.com/MikeODay http://photo.net/photos/MikeODay Details: Messier 8, NGC 6523 - Lagoon Nebula. also contains: NGC 6526 NGC 6530 NGC 6533 IC 1271 IC 4678 7SGR 9SGR Skywatcher Quattro 10" f4 Newtonian telescope. Skywatcher AZ Eq6 GT Mount. Orion auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, UHC-S 'nebula' filter. Nikon D300 (unmodified) (14bit NEF). Field of view (deg) ~ 1.35 x 0.90. 20 x 120 sec ISO400. 26 x 30 sec ISO 1600. 23 x 240 sec ISO 200. PixInsight and Photoshop. 2 August 14 . re-processed 24 April 2016 to include the additional subs ( the first version only made use of the 23 x 240 sec ISO 200 subs ) and putting use the processing lessons I have learnt over the past year.

    © Copyright Mike O'Day 2016 - all rights reserved

  2. Finally after puzzle solving with my adapter for Evostar I've managed to take first light on my new QHY camera. I have to say I'm impressed, after having some good experiences with Sony A7S this is what I was looking for .:) Scope: Skywatcher EVOSTAR 80ED DS-Pro Mount: HEQ5Pro Camera: QHY168C Filter Optolong L-PRO MAX Luminosity Guiding camera: ZWO ASI120MM Guiding scope: Panagor 400mm 21x200s exposure at -10°C binning 1x1
  3. A great, if short night at Seething. Finally a dark Friday night with no moon. Was about half ten when we started, a quick look at Jupiter, with Callisto very close to the 'top' almost grazing the upper edge. Main belts visible, but not the best of views. Moved onto Epsilon Lyra, the double double, easily split the lower pair, but not the upper. Spent ages 'faffing' with the slow mo controls East of Izar until I found Comet C2015 Johnson, thrilled to do so in my 3"Tak, best view was with a 15mm Panoptic; was too dark in the 9mm. It wasn't a night for Galaxies, I had planned (hoped) to spend time in Virgo looking at Markarian's chain, but struggled to see M65/M66 in Leo, even the view of M81/M82 wasn't great. Newbie error was that I didn't put the dew heaters on until too late, despite all the sunshine and heat of the day, by 1am was so damp. The new DewZapper tape was put to use on the eyepieces for the first time and can confirm it's a super, well made product. After a coffee moved onto M3, an easy find, about a third of the way along from Arcturus to Cor Caroli, and then to the globulars of Ophiuchus. I managed 10, 12 and 14 and even 107. It was then that I realised that twinkling low down star was Antares, so a quick look at Saturn; always a beautiful sight, but again not the clearest of views before finding the compact Globular Cluster M80, small but one I rarely get the opportunity to observe. By contrast M4 is mahoosive! Just West of Antares, low down, easier to find, it's I think one of the closest to us(?) i moved up to Aquilla and followed a line of faint stars to Scutum for M11, the Wild Duck Cluster a favourite - it's an Open Cluster that looks like it could be a Globular, anyway a lovely view, I couldn't find M26, lost I think in the clouds of the Milky Way...but moved across to the Eagle, not the greatest of views, even with a UHC filter, but underneath, almost in the same field of view in the Panoptic, was the Swan and did it look like a swan, albeit upside down, but there it was! #Stoked. Having seen the Swan and Eagle and spent time just enjoying seeing them, I realised that there was a chance of the 'elusive' Lagoon. We rarely get the chance to see this from Seething, it's just too low, but found it and spent ages enjoying the view, with and without a filter. I'd been joined by another NAS member, who'd come let me know that he was leaving and that I'd be the last one on site, he'd stayed to 'just have a quick look' at the Wild Duck Cluster, but hadn't seen any of the objects we'd been looking at afterwards, so he was as delighted to see the Lagoon as I was. We then moved onto look for M22, the "Star Cloud" and saw M28 on the way, but couldn't find M22; it was only when I looked up to the Plough to get my bearings that I realised that the stars were fading, but not through cloud, by about 02:30 it was too light. Sunrise was coming. So not the night that I'd planned and hoped for, no Galaxies in Virgo and too light to see any of the objects in Sagittarius as that rose, but I live for nights like this and the opportunity to see the more Southerly objects, all the better to share the views too, with an equally enthusiastic observer. Let's hope we get more of the same this Summer. Chris
  4. The Lagoon Nebula ( Messier 8, NGC 6523 ) in the constellation Sagittarious. ( click on image to see larger) The Laboon Nebula ( M8 ) is visible to the naked eye under dark skies from most latitudes except the far north. Seemingly covering an area about three times that of the full Moon, M8 actually covers an area somewhat greater than 110 light years and is around 4300 light years from Earth in the Sagittarius-Carina spiral arm of the Milkyway galaxy. ...... The frames for this image where taken back when I was very new to astrophotography and I was experimenting with camera settings. On this occasion I wanted to see if JPEG images might be easier to process - I was disappointed with the results. Now that I have a bit more knowledge and skill at processing I decided to have another attempt at trying to process the set because I liked the way the JPEG files had retained colour in the stars. I am reasonably pleased with the result; the faint detail in the nebula is not there but I quite like the colours in the centre and in the stars. Details: Messier 8, NGC 6523 - Lagoon Nebula Skywatcher Quattro 10" f4 Newtonian telescope. Skywatcher AZ Eq6 GT Mount.Orion auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector. Nikon D300 (unmodified). 80 x 30 sec ISO 1600 (JPEG) - 31 Aug 14. PixInsight and Photoshop. processed 13 August 2016 Links: https://500px.com/MikeODay http://photo.net/photos/MikeODay
  5. Evening SGL, though i would share my first astro mosaic. Taking on this little project was a spur of the moment decision, i made no plans for it until i imaged M8+M20 and thought "hmmmm, a galactic centre mosaic would look pretty tasty!". I then planned to create a 3x5 mosaic of the area totaling in 15 panels. But like i said, without planning it out properly i was left with the Milky Way dropping too low in my sky for me to get anywhere near what i wanted. So i only managed 4 panels... Each panel was around 70-80 minutes exposure time except one which i lost a lot of frames on because of cloud, leaving me with one panel of which the exposure time totaled 45 minutes. The processing and creating a seamless image was hard but this 'dud' panel caused more problems. I had to stretch it first and then bring the rest up to the same levels, if i had managed 70 minutes on this panel, i could of stretched the whole image a bit more without any problems. Each panel was made up of 120 second exposures at f3.2, ISO 800. And here is a couple of the single images... M8+M20, the Lagoon and Trifid And a part of the Pipe nebula, i call this area Barnard City I will be better prepared next year and will hopefully get to finish what i've started! All images were taken with a Canon 1100D and a EF200L on a Astrotrac TT320X-AG Clear skies!
  6. Hi All, I finally got around to adding the the first section of RGB to the L frames. This is 60mins L with 90RGB taken with the Tak FSQ106N and 11meg Atik. Its still pretty low here in Spain, only getting to about 25 degrees. It should get a little easier if I can get to adding the frames up towards the Eagle. Thats the plan anyway. I've only done 2x2 mosaics before so this is new territory for me. I'm trying to make the Lum layer firsts, stitch them, then register all the RGB frames to the flattened Lum mosaic. So far so good, but we'll see what happens when the next strip is complete. I guess I'm hoping to go North rather than the mosiac project going South!. Attached is what I hope a full screen shot. Or try Flickr here http://www.flickr.com/photos/28192200@N02/8247606720/in/photostream T.
  7. The Lagoon Nebula ( Messier 8, NGC 6523 ) in the constellation Sagittarius - by Mike O'Day ( https://500px.com/mikeoday ) ( click on image to see full size ) The Laboon Nebula ( M8 ) is visible to the naked eye under dark skies from most latitudes except the far north. Seemingly covering an area about three times that of the full Moon, M8 actually covers an area somewhat greater than 110 light years and is around 4300 light years from Earth in the Sagittarius-Carina spiral arm of the Milkyway galaxy. Links: https://500px.com/MikeODay http://photo.net/photos/MikeODay Details: Messier 8, NGC 6523 - Lagoon Nebula. Skywatcher Quattro 10" f4 Newtonian telescope. Skywatcher AZ Eq6 GT Mount. Orion auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, UHC-S 'nebula' filter. Nikon D300 (unmodified) (14bit NEF). Field of view (deg) ~ 1.35 x 0.90. 20 x 120 sec ISO400. 26 x 30 sec ISO 1600. 23 x 240 sec ISO 200. PixInsight and Photoshop. 2 August 14 . re-processed 24 April 2016 to include the additional subs ( the first version only made use of the 23 x 240 sec ISO 200 subs ) and putting use the processing lessons I have learnt over the past year. Here is the previous version:
  8. Hi All I downloaded a trial version of PixInsight yesterday and this is my first attempt to use it on one of my captures from last year. The colour is much better and overall noise is lower. "Harry's tutorials" have helped enourmously but I think it will take me a while to master even a small number of the many functions that PixInsight contains. Cheers Mike
  9. Astrophotography Scrapbook Vol. 1 Cover Page Lagoon Nebula in Sagittarius ( Messier 8, NGC 6523 ) The Fighting Dragons of Ara ( NGC 6188 ) War and Peace in Scorpius ( NGC 6357 ) Spiral Galaxy NGC 6744 in Pavo Ptolemy's Cluster in Scorpius ( Messier 7, NGC 6475 ) A Million Stars in the Deep South ( NGC 104, 47 Tucanae ) A Wishing Well in Carina ( NGC 3532 ) A Beehive in the Southern Sky ( NGC 2516 ) The Sliver Coin in Sculptor ( NGC 253 ) The Great Nebula in Orion ( Messier 42, NGC 1976 ) A Cluster of Pearls in Centaurus ( NGC 3766 ) - new 5 Dec resources: Scrapbook Template ------------------------------------- When I show my astrophotography images to my friends and family they invariably want to know what they are looking at. This led me to wonder if there was a way I could display my images on a single page together with a few notes on the target object as well as few technical details of the capture for those who might be interested. What I came up with a "scrapbook" like page that combines all of these three elements in a single PDF sheet ( or jpeg image) that ultimately I might combine together to form a PDF book that I can share online or send to friends and family. In the meantime, I thought I might post in this thread each page of my work-in-progress towards volume 1 of my Astrophotography Scrapbook. Any and all comments, observations, suggestions and constructive criticisms will be warmly received. Cheers Mike ps. The pages have been sized to fit full screen on an IPAD
  10. Hi all, To date I had been satisfied taking single shots with a DSLR and quickly seeing features of nebulae and fainter stars or moons of planets that I could not see at the eyepiece. Now I wanted to see what I could manage with further processing on a computer, so I took some pictures of M8 with a Canon EOS 700D on a NexStar SLT102 altazimuth refractor. I took about 20 30 second exposures at ISO 1600 and managed to get 6 with reasonably round stars. I then used Siril (because I have Linux on my computer and could not get DSS to run using Wine) to stack these after some issues. Siril appears to need to convert the input files to FITS format and also creates the final stacked image in this same format. It has features to then convert to others like JPEG but I found that the only way I could see the effect of the stacking was to open the final FITS file in KStars' viewer. I used the auto stretch feature of this viewer, then took a screen shot of that to which I applied a Gaussian blur filter and scaled down in size with Gimp. I ended up with mixed feelings at the end of this foray. This work flow is definitely not ideal. The final result reveals more than a single shot from a technical point of view but I do not really like it aesthetically. If the reddish background "speckling" is part of the nebula I would appreciate any advice on how I can get a smoother appearance (or how to remove it if it is noise). Cheers!
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