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Showing content with the highest reputation on 06/11/19 in all areas

  1. I've been wanting to capture this one for a long time... and I finally did these past few weeks. Unfortunately the stars are a bit blown out and have strange diffraction patterns due to the ZWO microlens. Tips/ comments on how to help these would be appreciated One interesting thing I noticed was a small galaxy to the right of Electra. Does anyone know what its brightness is? LRGB: each 50x180s Total exposure: ~10 hours ASI1600 FSQ106 Thanks for looking & clear skies.
    21 points
  2. This is my first image with my recently aquired Canon EOS 600D. Imaging Camera: Canon EOS 600D Scope: 200mm Takumar F4 Lens stopped down to about 5.4 Mount: Skywatcher HEQ5 Guiding: Altair GPCAM Colour and Finderguider Software: Backyard EOS, Sharpcap, PHD2, EQMOD, CDC, Pixinsight (Stacking and Processing) This is 141 x 2 minute lights of M31 taken over three nights last week, with 50 flats taken per night (with bias). Three moonless clear nights in a row! I've decided against using darks as I've dithered between every frame. I'm pretty happy with the 6
    18 points
  3. Last night was clear for a few hours between 10pm and 3am. Managed to get a couple hours worth of subs, took some better calibration (mostly as I rotated camera) and kept the dew at bay. Processed this today and very happy with the results. I haven't had this much 'star glow' before to deal with, but I quite like the effect its given the image. I have tried imaging this before, and the goto + platesolve usually leaves it in a landscape orientation, but having played with Telescopius I thought I would give this orientation a go. I actually was a little out from what I had planne
    11 points
  4. My Meade LX200-ACF and TS ImagingStar71, busy capturing something in Orion. The small tripod is carrying an Android tablet that controls both dslr:s - and it doubles as a dining table. I cannot think about a more relaxing moment than this. Just a little wind, the cameras are clicking on, the sounds of nature - and the sky. I think I will have another cup of tea, and that bag full of sandwiches is not empty yet... Good to have a few images like this when clouds have prevented any astro activity for so many weeks now. It helps keeping the spirits up. Ragnar
    10 points
  5. Hi folks, For about two years I have pondered doing a full moon sketch using dots/squiggles. With this poor run of weather I have spent the time giving it a go using a photograph. It has been absorbing to try it. I cannot say that I am totally pleased with the result. I am in awe of the true artists who use this technique but fun to try it. It has made me really look hard at the moon and appreciate the subtle colour changes (greys) all over the surface. The well known craters are reasonably accurate. For the polar regions I have tried to give an impression of the complex pattern of craters and
    9 points
  6. November in Sweden means clouds, clouds, and more clouds, so looking for data to reprocess. I had a conversation with Rodd on Astrobin about this reprocessed image just now and since even Rodd liked it I thought I post it also here on SGL. This one is the first data I took in August with my new galaxy hunting set-up: a Meade 14" ACF on an EQ8. This set-up really materialised rather accidentally. About a year ago I decided to upgrade from my EQ8 to Mesu 200 in hope of getting better guiding. I then realized that my guiding was more determined by the sky conditions than my mount, and that i
    9 points
  7. The Crescent Nebula NGC6888 in Cygnus. This image combines data acquired in 2018 with my Esprit 150/ASI1600mm with some recent wider field data from my Esprit150/SX-46 and piggybacked Esprit100/ASI1600m. In total 9hrs Ha, 7hrs Oiii and 30mins each RGB for the stars. Processed in Pixinsight and Photoshop with starless narrowband images made using StarNet module in Pixinsight. The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792. It is
    9 points
  8. Messier Medley and a comet An unexpected sky full of stars greeted me when I awok in the middle of the night. Checking the weather and stepping oputside, it looked like there were going to be several patches of clear skies for the rest of thr night. Quickly dressing and dragging the Dob' outside I managed to get set up as the streetlights turned off, so it was nice and dark. It seemed strange to see Ursa Major rising in the East when I have been used to seeing it settle in the West. I had woken the familiy up in my preparations and they dutifully stepped out expecting a wonder of the
    7 points
  9. I had not noticed the number of galaxies visible in this image before--On Astrobin under full resolution I lost count--so I figured on SGL it should be about the same. I took this image with a TOA 130 and the ASI 1600. About 15 hours of data. I hope it inspeires the galaxy hunters among us! CS Rodd Edit: I just revisited Astrobin and was surprised to see that full resolution there is MUCH bigger than full resolution here--very much closer in, so the image may noty imspire as much as I had hoped. Here is teh Astrobin link in case you want to see for yourself. htt
    6 points
  10. Had a chance to image at a dark sky site for the first time (Møns Klint in Denmark). Previous attempts were always ruined by equipment failure or fog. This time everything went to plan, and it was an excellent experience. This was also my first time properly using my standalone autoguider (Synguider 2), after getting the hang of its eccentricities in the backyard. Have to say that once you figure out all the important info that's not in the manual, it's s fantastic piece of kit. Not having a laptop out in the field made things much simpler. Two main targets for the night. Horsehead n
    5 points
  11. Hello everyone! After a pretty dreary September and part of October, I was finally able to get out with students to do some viewing. Here are some of the objects viewed over two nights using Starlight Live software on my Borg 77edii (f/4) and Borg 125SD (f/5) with a Trius 694 mono camera. In most cases an IDAS NB-1 "nebula" filter was employed to help with the suburban light pollution in our skies. The first night (mainly 125SD) was much steadier and drier, but along the coast we take what we can get when it isn't raining! ;-D It's so much fun to see these objects from less-tha
    5 points
  12. I am a complete noobie to the solar observing side of stargazing, but yesterday my first solar telescope arrived (a Coronado PST) and I was out today enjoying the process of learning a new type of observing. This report won't contain anything all that interesting to veterans, but I am excited and thought I'd post. This morning I got out and found my way around the scope, learning to focus, adjust contrast, and get rid of reflections. I saw a nice little prom and a bright spot along with some surface texture, and I was quite happy. I went out this afternoon and managed
    5 points
  13. Courtesy of @parallaxerr my first ever filter of any description...
    5 points
  14. This has been a bit of a project. Last year I worked out that my 200mm Canon F2.8 lens and ASI1600 would frame the whole of the Veil complex quite nicely. I captured Ha and OIII data for the east and west nebulae with a Tak FSQ 106 and added this into the widefield image. Although the Tak data had to be shrunk down it did add a bit of extra resolution where it was needed. The difficulty for me has been the processing. I have found it really difficult to tease out the faint wisps of detail and have tried the usual routines of micro contrast adjustments using curves along with Scott R
    5 points
  15. Just had a delivery from Thorlabs Gmbh via UPS. It was a rather large and heavy box for a 1" mirror and a diffraction grating: German sweets, lol. Brought a smile to my face! I presume it was a 'first order' present! A 0.5" mirror due from them tomorrow... Time for a coffee and a sweet Louise
    5 points
  16. Wednesday Oct 30th. 58N, Achnahaird, NW Highlands, Scotland. Canon 6D MkII, Samyang 14mm. VSDC editor. Music - Storm Horizon by Lee Rosevere. Best in darkened room with the volume up...
    4 points
  17. I've just received a copy of the Dutch Astrofoto Bulletin which features one of my Astronomy Now articles - in Dutch. Rather exciting. It was translated by our regular guest Frans Kroon and permission for publication was kindly provided by Astronomy Now's editor Keith Cooper. When it came out in English I was half expecting flak from it since I essentially argue that a 6 inch refractor can run much bigger reflectors very close in DS imaging. I now have a second opportunity to be mauled by angry reflector owners... lly
    4 points
  18. not been about for a while i managed a couple of hours out the other night with my new lens the EF 70-300 F4-5.6 L and it gives much greater colour than any other lens i have. please let me know what you think. 35 subs at 2 minutes per sub = 1 hour 10 minutes no crop. canon eos 200d not moded AT ISO 6400 canon EF 70-300 F4-5.6 L IS USM AT 70MM AND F4. will need a lot more subs for noise and detail when i get the chance.
    4 points
  19. Hello All. Just to say a big thank you to Mike, Lesley , Ralph and of course you folk who were at the Autumn GSP 2019 event at Drumroamin! It was great to meet up with you all again and we do think that we did make a few more friends again this year! Thank you all for making Christina and myself from the smaller island most welcome. As you guys know we had at least four nights stargazing, which was the great bonus! The Tuesday morning's 02.15am sailing was cancelled, so we stayed in Preston for another night and got yesterday afternoons (Tuesday) 14.15hrs sailing home and arri
    4 points
  20. Olly preparing for the response to his article.
    4 points
  21. For those considering buying an ASIair I used my new ASIair+EAF acquisition last night for the first time with my relatively new iOptron CEM25-EC with ASI1600 MM Pro, Canon 200mm lens and ZWO-EFW. Once I had got my head around the iPad app I have got to say I was sold on the ease with which you can control the mount with Sky Safari, the ease with which you can focus the optics with the EAF and the simplicity of the process for setting up an imaging run. The interface is a joy to use with everything easily accessible at any time on one iPad screen. First impressions are I love it!
    4 points
  22. I absolutely agree with this..... I have a set of Astrodons and a set of Chroma...... I don't think that the Chroma are inferior in any way at all. If buying them would make a saving, then I'd get them over the Astrodons.
    4 points
  23. If you haven't already bought them, have a look at the Chroma, originally they made the filters for Astrodon, they are much cheaper and the quality is every bit as good as Astrodons, they are heavy filters 3mm thick so like Astrodons you'll need to allow 1.0mm for your back focus. I bought my NB Chroma 3nm direct from Chroma and saved about 50%
    4 points
  24. Set up the Bresser Dob before mealtime, hoping for the Moon and Cygnus targets, but it got very cloudy very quickly, so I packed up. After the meal, the sky was teasingly clearish again, so this time I put the ST120 frac into service - a fine telescope for dimmer objects (no CA), and very easy to set up and use. Managed a few nice views of the Moon, but I really wanted the Eta Cygni region. In a very wide view, I spotted a "question mark" of faint stars, which led me to Eta Cyg. In the same FOV (and about half a degree away) was Cygnus X-1 (V1357 Cyg) at the tip of an arrowhead of star
    4 points
  25. Almost five years ago I purchased one of Juan Fierros' astro modified Canon cameras. It has been an excellent performer both as an Astro and daytime camera. Recently I had a bit of an issue with a patch of dust or some other contamination on the Canon 700d's sensor. Neither Gamma Optical Fluid nor Baader Wonder Fluid applied with swabs were able to shift it. It didn't calibrate out particularly well, either and was quite close to centre of the frame. Worse, it started showing up on my daytime photos ( astromodded but it is still quite usable for daytime photos). I was convinced t
    4 points
  26. thats dawn and myself back home, another great star camp, thanks again to Mike for all and Lesley n Ralph for wonderful welcome, attached a wee unprocessed image of horse head not great but am pleased with it so far, take care guys and hopefully see you all in the spring.
    4 points
  27. Evening all This Is my first lunar mosaic, after returning back to the hobby, I created from last nights moon. I probably could have spent a little more time on it but its was good to have a decent practice (and i still have all the raw data so I can always have another go ) I also tried to take a single frame video but during the stacking process it chopped off a small sliver at the bottom let me know what you think and any ways I can improve my techniqie As an aside I used to have program many years ago that would dispaly a single frame of the video taken in a d
    4 points
  28. The galaxy NGC 4216 is located in the Virgo constellation and is approximately 55 million light years from Earth. It is one of the largest and brightest galaxies in the Virgo cluster. It appears at an inclination of 89 degrees such that its core is partially obscured by its outer dust lanes. Numerous other background galaxies can also been seen in the image below, some of which I've annotated below. Due to the poor UK weather, this object disappeared below my local horizon before my imaging run was complete, however, I'm reasonably pleased with the result. The LRGB image represen
    4 points
  29. A sleeping bag suit! Brilliant!! I searched "wearable sleeping bag".. LOL What a great time to be alive
    4 points
  30. So we finally got a clear night up here in the North of England. Ive had Astrophotography Tool installed for about a year but didn't have a clue how to use it. I watched numerous YouTube vids and finally got to have a go tonight. Along with Cartes du Ciel, PHD2, All Sky Platesolver, and EQMod, I think ive kinda worked it out to a basic level anyway. Got my camera cooling fantastically thru the APT and when worked out the way to use the plate solving I was landing in the middle everytime. So far very happy, looks like I may get some good results this winter. Depending o
    3 points
  31. Hi everyone, Had a brief spell of imaging comet N2 ASASSN last nite, was hoping to do T2 PANSTARRS aswell but clouds put paid to that. Sill showing ok but is supposed to be fading slowly. 1st pic is 4 x 120s.. 2nd pic is 15 x 120s.... OO ODK 12..Canon 1100D.. IOPTRON CEM 120 EC.. Thanks for looking Bob..
    3 points
  32. No, it's a stone facing / containment (To fit in with the area) with concrete infill. As it's on a diagonal relative to the rest of the garden the small triangles of grass that would have been left will be replaced with paving slabs. I'm making the sole plate ahead of time so it can be used as a template for the build, to make sure the top is level and the size is as spec'd, 2.2 m square x 0.5m high. It will then get bolted down and the rest of the structure assembled on it. If it had just been a stark concrete block I might have done it myself, but my bricklaying "skills" are pretty
    3 points
  33. I shake my head in wonder that people can get away with selling something, often expensive, that simply doesn't do the only thing it's supposed to, and be not designed to be adjusted by the user without e.g. digging out sealant. I'm not sure who I blame more, the manufacturer or the retailer if it's a specialist retailer. With collimating lasers it seems you'd be sending back items time after time after time: perhaps those retailers themselves should ensure they're collimated before they go out. In similar vein I've had to throw away useless spirit levels that were more than a degree out...
    3 points
  34. Sorry I missed this comment. I was specifically asked to replace the worm bearings on both axes by Rowan Astronomy and followed their instructions when I did so. Otherwise I am resisting the temptation to tweak and adjust the mount. I don't want any of my ham fisted efforts to impact the performance one way or another ! While on the subject of performance, poor weather conditions have meant that I've simply not been able to get out and observe at all with the AZ100 over the past couple of weeks. In fact a quick dash out with binoculars is all that I've been able to do astronomy-wise
    3 points
  35. When you check that the laser collimator is itself collimated, 10m is a good distance and the laser unit needs to be rotated just around it's long axis with no other motion. A simple "V block" can help with this. Something like this will do the job: https://www.thingiverse.com/make:334814 Assuming that the laser is now collimated accurately itself, if the laser spot is missing the central mark on the primary this means that the tilt of the secondary mirror needs to be adjusted. Once you have done that and the laser spot is right in the centre of the primary mirror, you then move on t
    3 points
  36. I'm definitely not in the bidding for this. However, I did ask the seller a couple of questions that might be helpful to SGL member's if wondering about buying. The area is flat. There are no steps or ramps to negotiate to get off site. There is a gap of about 10ft alongside the house for access. The seller does not need the site clear by a specific date - but wants to make a start on the back of the (recently bought) house quite soon. Bidding was at £1.20 when I last looked. David.
    3 points
  37. Clouds have stopped play for a while so I have been messing around with a little animation. M51 taken 1 image per century over a period of 250,000 years, bit of a long project . A bit of fun using pixaloop android app. Cheers Nige. 03_11_2019_22_29_14_3469999[1].mp4
    3 points
  38. I tend not to agree with most of the replys here. If you post an advert to sell you should check your emails or forum daily.If people are interested and take the time to reply to your add,you cant just ignore or go away on holiday without checking.Most people now have mobile phones.The person replying does,nt know if you have changed your mind/sold or whatever. The buyer does,nt know whether to move on and look elsewhere or not. My view anyway. Mick.
    3 points
  39. This was a few weeks ago before baby arrival.... capturing Saturn's photons. Lovely quiet spot in my front garden looking down the street which ismt ideal with all the asphalt. Though the grass is far too soggy to set up here now.
    3 points
  40. Well received the Baader film from FLO and the last two days I have been making a filter that will slide on the Meade 5"
    2 points
  41. Star trails at sycamore gap, located along Hadrian’s wall. Equipment canon 6d, samyang 14mm lens and a tri pod. Thanks for looking.
    2 points
  42. Hiya Curivenion Three moonless clear nights in a row! That is a rarity for us, (I must have slept through them.) That is a cracking capture with your 200mm Takumar and Canon EOS 600D, some very nice detail in there, good shaped stars in the centre of the field, the background looks nice and neutral, and you have pulled the dust lanes out nicely and controlled the core. For me (by no means am I an expert of anything) it seems a tad over colour saturated and a bit reddish / orange. Looking at your image and large amount of work/dedication you have put into it, you have encou
    2 points
  43. During half-time of a football match I was watching, I launched the Stellarium software on my PC, then I found the moon at S/SW direction. Then I raised the curtain, and boom.... it is right there in the sky through the window. Took a picture with my phone. Does this count as my first luna photo? Maybe I have another option, that is to use 200P in my bedroom, watching the entire S/SW sky through opened windows?
    2 points
  44. Never mind the “Rules” but common curtesy is to reply reasonably promptly to an ad enquiry or if you will be away and unable to reply until a certain date mention it in your ad.
    2 points
  45. Here is my lunar imaging set-up - just in my driveway... I am finding it hard to persuade myself to go to better places for my imaging since I bought all this stuff - though I deliberately made choices for portability. I know my driveway is not the best place but its so much easier on my limited time budget! Been a while since I have been able to shoot - moon will be low, but a convenient time for me the next few days - hoping I can at least get out with one of my lenses (I have adapters to fit my ZWO ASI183MM camera), I doubt the C8 will be worth setting up and my 6 inch Newt you can se
    2 points
  46. I am just starting out in the world of astronomy, before I even think of buying any suitable clothing I am going to try some of my motorcycle gear.. I have textile jackets/trousers, waterproof, padded, removable liners for cooler/warmer, certainly wind proof, padded knees for kneeling... can't imagine how they won't do the job. It maybe something to think about... there is always plenty of cheap secondhand clothing for sale, not that it has to be expensive new but if you look around you can grab some really good bargains. Plus, generally textile trousers etc are not tight fitting so there is s
    2 points
  47. Caught it again tonight, 2.7 days old now and much higher up. I checked what time the Sun went behind the ridge so I had a better idea of where to look for the Moon, and picked it up around 4.30pm. It looked very nice in the scope and got better as the sky darkened. Later on the earth shine was showing very clearly with the naked eye. This is a quick snap with my S9, just tweaked a little in PS Express. There was a lovely bead of light separated from the main terminator which was great in the scope. Just before 6pm the new Moon, Jupiter and Saturn were strung out very clearly in a li
    2 points
  48. Not so much in action but airing off the dew after action. Took a few days off work and having a few much needed days holiday in Romney- with my scope Bortle 4 skies!! My first with a scope and oh what a difference it makes compared to my local 8-9! Milky Way clearly visible in perfect clear skies for my first beautiful night and easy to get lost in the blanket of stars not visible from home. The Ring was much more defined and the Great Globular spectacular (I could actually see very clearly the stars of Hercules! ) Sadly for some reason (maybe coastal humid air?) the planets were
    2 points
  49. With that big undercut in the barrel they better hope Apollo 11 doesn't snag on the launch tower on the way up!
    2 points
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