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Showing content with the highest reputation on 16/08/12 in all areas

  1. 3 points
    This was a work in progress as I wanted to add RGB to create some nice coloured stars - Maybe I'll capture that tonight! Anyway, I have spent a long time today processing this with different amounts of data. Initially I tried 6 hours of each Ha, OIII and SII. I thought that if the results were good then it would save me a lot of capture time, although that is still 18 hours. I found I got a lot of noise with that, so settled on working with all the data I had so far. This has worked out much better and the level of noise was far better with the additional hours. So, for my own little experiment I have decided that I will stick with 1 nights Ha, 2 nights OIII and 3 nights SII. Details M: HEQ5 T: Pentax 75SDHF C: Atik 314L+ with Baader narrowband filters Ha 19x1200s OIII 28x1200s SII 50x1200s Total time - 32hours 20min No calibration files and all taken at 0 degrees as I still battle with heat. Whether or not this is worth over 32 hours I'm not sure!! But I've enjoyed it. Ced214 (Cederblad 214) in narrowband by swag72, on Flickr
  2. 3 points
    Hello All Thought folks would be interested to see the size difference between a 10" and a 16" 'in action'. Bart
  3. 2 points
    After 2 years of only ever imaging the waxing moon (due to its convenient early evening time keeping) I really wanted to get a high res mosaic of the crescent waning moon but obviously that means shooting in the very early hours of the morning. So Saturday morning at 2am I sluggishly got up and started shooting. It was a bit misty but generally it worked out ok and I'm pretty pleased with the result. I shot it all through a red filter and it took about an hour. If the picture doesn't load (or takes ages) and you want to skip to the full size version click here: http://www.flickr.co...in/photostream/ otherwise:
  4. 2 points
    Try keeping both eyes open when looking through the finderscope. I find that this way you get to see both views at once and it becomes more obvious when your target star is lining up with the one in the finderscope.
  5. 1 point
    Phase: 50.5% Diameter: 23.4" Altitude: 27° Time: 5:09am BST Clouds came mid-shoot so I could only grab about 1900 frames. 3x barlow equipped. Pity I didn't catch it yesterday at precisely 50.0, particularly given that I live in a region where that moment was viewable, but I did compose this summary of the occasion (the 12dstring scale image was for a x2.5 PowerMate which is why my next-day actual capture is larger):
  6. 1 point
    Pure clouds here, can't see a thing so someone has!
  7. 1 point
    Hi guys, Diamond Ring is actually invisible but it's not my fault this time. It can only be seen in IR spectrum. There is still a lot going on in this image. VDB 136 is in the centre. Around it is a dark nebula and this blueish tint is not accounted for post-processing artefact but rather dust scattered across. There is just one reference image I could found in Internet - magnificent work of Tom Davis. But unfortunately I have neither ASA nor TeleVue, Just modest effort with my noisy Canon http://www.astrobin....17488/?mod=none Thanks for looking! Mark
  8. 1 point
    As its nearly finished I thought I would upload an un-edited version of the story so far, just for fun.
  9. 1 point
    Cheers - wish we'd had more time before the clouds rolled in. Next time I am going to jot down a list of the better known clusters and see if I can get a few more under my belt - then to take a crack at the Pleiades again. Attached my attempt I managed to capture through the LP of Basildon - so hoping to pick up more nebulosity next time.
  10. 1 point
    Nah!! Two servo's and a bit o' wire - works a treat!! http://homepage.ntlw...tricFocuser.htm Made one myself a while ago. The slave servo is driven at whatever speed you turn the master servo. Or you can do it the "posh" way, again using a servo and battery box: http://stargazerslou...e__hl__focusser I have now made several of these, one for each scope - I just plug the power supply into the one I'm using.
  11. 1 point
    7.99 from Amazon actually ;-) Cool, thanks for all your advice on this and the laptop thread. I am better prepared now i think with some great advice.
  12. 1 point
    I am a member of Hanwell Community Observatory and am interested in taking photos of the moon with my Celestron telescope this is one of my images
  13. 1 point
  14. 1 point
    http://www.skyviewcafe.com/skyview.php Nice java web page, with some good info Dave
  15. 1 point
    If only carbonite wasn't a fictional material, you could spin it in a giant dish and hit the button on the side to instantly solidify it!, just make sure Hans Solo isn't in there at the time:D
  16. 1 point
    Im going to agree with the Scott, also im going to suggest a skymax 127, or if the budget will stretch to a 150, very compact, long focal length, excellent on lunar and planets, but not so bad on DSO`s as people might like to think, only limited to a smaller field of view than other scope designs . Just the cooldown to keep in mind, but very good scopes, easy on eyepieces, very compact and dam near Apo views
  17. 1 point
    Hi Gazers! Got a chance to shoot 5 days in a row! I'm quite happy with this, although I expected to get more out of this, but I think it's a pretty good effort.
  18. 1 point
    There's a short video on youtube of , which I took in March with the Heritage 130p and from which I used Registax to produce this image.For the entire moon to pass through the scope webcam's field of view takes about two minutes & yes, registax can handle that whole thing with minimum guidance. I have been using a 'Trust' branded generic CMOs cam for £7 from B&M, which was OK. I'm now using the Quickcam Pro 4000, which is better in almost every way, but I have found it is very unforgiving when focussing. There are some odds and ends in my gallery if you want to see what sort of images you can achieve with your new scope .
  19. 1 point
    Stick it in the front door. You'd be able to see who was ringing the doorbell from the end of the garden James
  20. 1 point
    i always keep my mouth wide open works for me
  21. 1 point
  22. 1 point
    the centre is just out (assuming your spider is central), the shadow of the secondary will show a slight offset, (3mm or so if my calcs are correct) due to fast f4.8, a cheshire would help to centre the centre mark. It may look small but this amount of decollimation will affect the image particulary as mag increases. Also a laser will help but make sure you check the laser itself for collimation or you just repeat its error on the scope.
  23. 1 point
    I wonder if it might be worth seeing if you can try out a 200P dob before deciding to pass on the more difficult DSOs It may well give you a different perspective and would be well within budget. James
  24. 1 point
    My Nexstar 11 GPS came with a 2" plug for the rear cell opening so Celestron do offer them. Might be worth checking their website to see if they sell them separately.
  25. 1 point
    I managed to follow the ISS for most of a pass the other night. I had to give in when it was overhead as it was too fast/awkward, but picked it up again as it went over. I used a 106mm refractor with a 13mm ethos, giving x53 with a 1.9° fov which helped alot. Best technique was to focus on a star, and pick it up at the start of the pass when it is slower. You can then tweek the focus. I then just moved the scope ahead of it and let it pass through, and repeated. I got some excellent views of the solar panels and the main body of the station. Well worth persevering with. Might try with a powermate but probably won't be possible to track at that magnification. Stu
  26. 1 point
    Hi, not a bad post, I took delivery of a neq6 a couple of months ago and it was delivered the same day as my new car, so grinning like a cheshire cat for days, when you said about the tube rings, I had to email FLO about the rings as almost all the reflector tubes assemblies shown in the pictures have tube rings on them wether they come with them or not which is misleading. Not sure about the eq5 but the mount is very good and I know people keep on about keeping costs down but the Azimuth adjusting bolts are cheap rubbish and I'll end up getting some better ones but wouldnt have had a problem in paying the extra to have better ones with the mount. Kev.
  27. 1 point
    One problem with the Celestron motor is the speed control is a bit fiddly to get right. If you wrap a cable tie around it you'll have alot better and finer control of the speed.
  28. 1 point
    Hi Rich, welcome to sgl and the forums Clive
  29. 1 point
    Hi Maz, welcome to sgl Clive
  30. 1 point
    no problem will have a look just out of curiosity then will post
  31. 1 point
    To be honest, you really dont need a moon filter. Yes it is bright when it is a full moon but thats the worst time to observe because there is no shadow or contrast. Forget buying a moon filter.
  32. 1 point
    Great images. Scary just how familiar everything looks tho.
  33. 1 point
    So have you found it yet and not been able to split it, or do you not think you've found it yet? It is actually quite easy to find, can see it naked eye next to Vega, and the pair are obvious in the scope at lower power. Better luck next time, you'll get there. Stu
  34. 1 point
    When i see images of Mars like this they remind me so much of the landscape in several Saharan countries that i have visited over the years. These pics could easily have been taken in the likes of Tunisia or Morroco. My point is that Mars is now an apparent dead and barren planet, but water once flowed freely there. I just cant help but feel that if we search long and deep enough that we WILL find evidence of life there or at best traces of ancient life (bacterial or microbial).
  35. 1 point
    Thats the best hidden link i think i have ever experienced. I'd also say tighten the tension screws on the focuser base plate to give it more grip with the cogs (teeth) of the focuser. See the screw marked in red? I say move it to the centre of the focuser base plate (the empty hole)
  36. 1 point
    For a source of red celophane with a "plus" factor, buy a box of Marks and Spencers dark chocolate cherry liqueurs. Each has a 10x10.5mm sheet of red celophane suitable for all but the largest torches - and the liqueur chocolates are extremely moreish. You might even tempt 'er (or 'im) indoors out to the telescope!
  37. 1 point
    Many congratulations to you both You may want to extend the build now, to include a sound proof room with a bed
  38. 1 point
    Hi Richard, lots of good advice already given. I agree that 120x is medium power with your scope and it should be easily capable to go a lot higher. A lot depends on how steady the atmosphere is, but just as important is collimation. If it were me, I'd make sure the collimation is good, then try your 9mm eyepiece again, and on a half decent night the views should be crisp. The Vixen NLV is 'only' a 50 degree apparent field, but should perform well with sharp views across the field, I'd sooner have that EP than a cheap wideangle that's only sharp in the centre of the field. So I really don't think the 9mm is a waste of time as you mention in post #6. One collimation tip - sort the secondary first and get that right before sorting the primary - if you do it the other way round it will be dawn and you won't have got there You can sort the secondary with a simple collimation cap in daylight, then do the primary on a defocused star at night, use the 9mm to get it close, then barlow it to get it spot on. Once you have sorted the secondary, don't touch it when star collimating at night, just use the adjustments on the primary. You will get there !! Polaris is your best bet as it stays put on the sky. Chasing a star across the sky doesn't help when trying to collimate ! Once sorted, you will be thrilled with what your scope will do. Regards, Ed.
  39. 1 point
    Hi amar and welcome from me you must ave some great views Pat
  40. 1 point
    Hi Ernesto and welcome to SGL, very nice equipment for your photography, the 90mm APO and the Losmandy GM11, you might find the Losmandy users forum helpful when using your mount. John.
  41. 1 point
    you could allways put on radio on hiss noise and when meteor passes it fm meteor scatters so in way you can listen to meteor how it effects radio signals and run some software like speclab /fm meteor scatter software. Example of meteor scatter my radio picked up 14th august 2012 http://cliffraves.hourb.com/skycam2/scatter/meteoraugust14th2012.mp3 and speclab produces images of scatter I would say yes you can listen to meteor frequency's.
  42. 1 point
    next time you hear a meteor.....DUCK. Sorry, I've got no idea. my guess would be that you heard a similtaneous noise but i could be completely off the mark Scott ps. please don't think i'm taking the mick. its just my warped sence of humor.
  43. 1 point
    Hi and welcome to the forum. Ah the fun (frustrations?) of the astro photography or as we call it, the 'dark art'. The secret to imaging deep sky objects apart from patience, is going to be the mount and its ability to track accurately for a sufficiently long enough period to perform long exposures. There is the initial steep learning curve but in theory it should get easier as time goes by - but you know what theories are like! Clear skies and enjoy the forum, James
  44. 1 point
    I would suggest not going below 9-10mm as you will be pushing the scope to its maximum magnification capabilities. Imagine you are driving a car. nice high gear smooth drive good MPH Stickm it 1st with your foot on floor and watch your petrol gauge drop scope are much the same. The more power you use ie smaller the EP the worse the viewing gets. Once you overpower hyou get poor results
  45. 1 point
    Over a week ago, I was out on a trip into the Sinai desert, meal and camel riding with the Bedouin. My wife, son and I happened to be with the guy setting up the scopes and I noticed a bright meteor in orange colour start to streak across the sky. Shouting out 'shooting star' to them both in the hope they would see it, we all got a perfect view as the meteor managed to go from one side of the sky completely to the othe side. My 5 year old was so excited and jumping up and down with delight as it was his first meteor he'd seen.
  46. 1 point
    Nice to see others posting their favorites in this thread too Often it's not the largest aperture or most costly scopes that press all the right buttons - there are sometimes emotions involved too !
  47. 1 point
    More homework... I found these two videos helpful as well: And other tutorial links: Astro Imaging - Basics =================== http://www.eprisephoto.com/basics-new Mark's tutorials ===================== http://www.youtube.c...lewoodle&page=1
  48. 1 point
    I know that M31 is just the tip of the iceberg. But I'm taking my time to learn to navigate around that big sky. This is even more exciting than I first thought. And while I say "smudge", I do realize how impressive this all is and how humble we should be when we look at one of nature's most impressive pieces of art.
  49. 1 point
  50. 1 point
    That's strange, although I have my own 'down and dirty' way of removing LP, Noels Action normally does a really good job of this! However, my 'down and dirty' method is detailed here on my website:- http://home.btconnect.com/astro-site/post_processing_basics.htm
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