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Found 13 results

  1. A DSO image in planetary settings. This is the Eskimo planetary nebula. Small as they are, this one has less than 1arcmin. The image was taken with a C11 f10 and ASi224. No cut-off filter was used. The capture was made with Firecapture and 2s exposures. The final processing was in PI.
  2. Taken last night a bi-colour image of NGC 1514 Planetary nebula. 18 x 6 mins in h-alpha, and the same in OIII. Camera was a mono atik 314....taken through the skywatcher MN190.
  3. This always seems to be my "go-to" nebula when I am trying to knock the rust off the gear and get back into imaging and processing mode. This is my first time combining Ha and OIII data using the QSI wsg-8 and first time using OAG. It only took troubleshooting the Gemini-2 (new FW) and getting the Gemini.net ASCOM driver to behave with the SkyX but here it is for this year... NGC 7293 the Helix nebula Constellation Aquarius ~700 light years distant Ha 20min subs totaling 1 hour and 20 minutes. OIII 20 min subs totaling 2 hours. QSI 683 wsg-8 Losmandy g11 Gemini II AT8RC Taken September 26 and October 5, 2013 Please visit my webpage for a higher resolution image.
  4. The night of 12/8/13 turned out to be extremely clear and Mrs WaveSoarer and I went out to see if we could spot any of the Preseids meteor shower. I also set up the telescope to do some DSO observing. After picking out a few of my favourites I went to look for NGC 6803 (the Ghost of the Moon) and NGC 6804, which are planetary nebulae a good deal smaller and dimmer (Mag. 11 and Mag. 12 respectively) than I'd previously managed to find. I star hopped from Altair to mu Aq1 and then up to NGC 6804. Although this is the fainter of the pair it was surprisingly easy to find as it's set between the mag. 8.85 HIP 96056 and another Mag. 9.25 star. It's distinctly fuzzy and quite unmistakeable. Happy with seeing this I then moved on to NGC 6803. Although the brighter of the pair, this proved more difficult as it's much smaller than NGC6804 and has a quite stellar appearance. I could pinpoint its location with Stellarium but I couldn't convince myself that I wasn't just looking at another star in the right vicinity. I later continued looking at other DSOs while also trying to catch up with Mrs WaveSoarer's impressive total of Preseids - she got nearly twenty in the half hour she was outside. I did a little more reading up on NGC 6803 the next day and as the evening also turned out clear again I set up the telescope and I had another go. One tip I found on the web was to get set up on the position of the nebula and then place an OIII filer in front of the EP. By switching quickly between the filtered and unfiltered view then it should be possible to pick out the nebula as this will not dim significantly while the neighbouring stars become much less bright. I was cautious to avoid getting the filter dirty but, sure enough, this technique did actually work and it was almost immediately apparent which of the candidate points of light was the nebula. With the position clearly indicated the nebula did take on more of a fuzzy appearance at higher magnification - though the perception of fuzziness may have been more wishful thinking on my part. By contrast NGC 6804 was much more obvious and I took time to view it at reasonably high magnification. I used my 5 mm EP, without the OIII filter, and found that it had a fairly mottled appearance with just hints of small points of light with averted vision. It was rather pleasing to observe this pair of planetary nebulae and NGC 6803 was certainly quite a challenge.
  5. The Ring Nebula on not-as-clear-as-forecast night in London. M57 was the best available target to image through the murky sky but it's come out much better than previous attempts. 17 x 4 minute exposures at 800 ISO 3 x 8 minute exposures at 400 ISO16 x dark frames10 x flat frames46 x bias/offset frames92 minutes total exposure timeGuided with PHDProcessed in Nebulosity and Photoshop
  6. Hi, This is my attempt at the Owl nebula and also the first picture taken with cooled CCD camera for me. My Canon EOS500D has now retired. The image is photographed from Uppsala in Sweden, date 2013-03-13. Exposures L23x10min, R9x10min, G9x10min, B7x10min. Camera SBIG STF-8300M, cooled to -30 ° C. Telescope, Skywatcher 190MN on NEQ6-mount. Guide camera-QHY5M. Stacked in Maxim DL and then processed in Adobe Ps Cs5. Weather conditions good, around -15°C. Enjoy! Full 100% wiew: http://www.astronet....2550&mode=large Close up wiew, cropped: http://www.astronet....2549&mode=large
  7. Having seen another forum member's deep sky experiment with the ASI120MC camera, I tried the experiment myself. Here are e1e2 Lyrae, the Cat's Eye planetary nebula, NGC6210 and NGC6572 all imaged with a C8 SE and the ASI120MC. The planetary inages are single image captures, while the double-double is processed from a short video stream. I also tried M57, and while I could see it in purplish colour at an exposure of 8 secs, I could not get the Sharpcap live stacking to work. From an EAA point of view, this camera and planetaries are a definite hit, as the camera and laptop show them better than the eyepiece, and in colour.
  8. I wish I had the time to go back and re-stack and process all the data obtained over the years, with the benefit of new software and tools. Specifically, using Pixinsight. But I don't so will just do the best I can with the remaining pictures in my "Still to be Done" folder. Pretty sure I haven't posted this one before here, although a version with the same data has been on astrobin for a while. C11 Edge, Atik 428, Ha, Oiii, Sii, RGB filters all mixed, mashed, used and abused. M76 has some really faint ears at the top end. They only show in Ha exposures, and even then, only just. Hardly ever see them in amateur images, and try as I might, I can't get enough signal from them to bring them out properly. A challenge for another day perhaps.
  9. Imaging the Ring Nebula was an old dream, so finally being able to do it was a small but significant pleasure! I am glad I even captured a reddish outer rim. This was the last DSO I imaged on 2016-05-04, and for me also the last DSO in this season, as the sky does not get dark anymore until mid-August here (see even the bright background in the picture). I did many experiments trying to find the right combination of sensitivity and exposure. I ended up using all images I took, with a total of 21 lights and 5 darks. Exposure mixture: 13 at 1600 ISO, 8 at 800 ISO; 11 exposures at 10 seconds, 5 at 8 seconds, 3 at 15 seconds and 2 at 5 seconds. RAW files processed in UFRaw and GIMP, stacked in Registax and final touches in GIMP. No flats, no bias. Still learning those steps! System as usual: Nikon D40X with Baader MKIII coma corrector at the primary focus of a Skywatcher 200 PDS (200 mm f/5) Newtonian, mounted on an EQ5 dual axis equatorial mount. Clear skies!
  10. Heres one from the other night, it nearly escaped me this part of the season, due to its very awkward position in the sky, and the presence of looming light pollution. Had some issues with my PA so, started imaging again on the shorter focal length w/o zenithstar 70ED, so was looking for something large enough to be worthy of the imaging through the Williams, so opted for this large PN in Lynx, Jones emberson 1. This was a stack of 15 x 6 mins, with a 7nm h-alpha filter.........
  11. Jose Rodrigues

    NGC246

    Hello folks! On saturday, I sent stargazing with my girlfriend at a friend's place. The sky is not too bad, but unfortunately there still is some light pollution in direction of the south. I was looking at NGC246 (In Cetus constellation, which was still south-east) when I asked them if they would "allow" me to sketch it. They did. Here is the result: I'm not really satisfied since the "right" extensions are not it the right place. I mean, the fourth star should be in the center of the "spikes" and not on the border. Better luck next time. José
  12. PK (Perek-Kohoutek) 164+31.1 is a planetary nebula in the constellation Lynx. It is also known as Jones-Emberson 1. The nebula is some 1600 light years from us. This is Ha plus LRGB captured over several nights from the DSW facility in New Mexico on the Tak 106/QSI683 rig Luminance: 18x900" bin 1x1 Red: 14x900" bin 1x1 Green: 17x900" bin 1x1 Blue: 16x900" bin 1x1 Ha 5nm: 13x1800" bin 1x1 Another object I think I will revisit in my Esprit 120.
  13. Gathered a few frames of this nebula a couple of years ago. Not enough to really get to grips with, they have just sat there. Having a clear out, so here is the best I could make of what little there was. I don't recall the exact scope or camera, but suspect it was a C11 edge at f10 with Atik 428, using Ha and Oiii filters. I think there was about 5 subs for each filter. Nice object visually, (if you can find it!), the Crystal Ball nebula is scientifically fascinating. Tightly bound double star at the centre with a 10 day period, NASA's WISE infra red telescope imaged a remarkable feature around the nebula unseen in any other wavelength. Having read this article since, I think I will be going back to this one at f7, binned 4x4, and one or two hour exposures, just to see if any of that extraordinary outer ring can be picked up. Based on previous results with M57, I wold hope to get at least something. Thanks for looking. Article from NASA here: http://www.nasa.gov/mission_pages/WISE/news/wise20101117.html Tim
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