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Showing content with the highest reputation on 19/05/19 in all areas

  1. 5 points
    Both shots taken with a x2 barlow and imaging source camera
  2. 5 points
    That's wonderful! Sorry, I couldn't help myself:
  3. 4 points
    TS 130mm f6.6 Riccardi APO Reducer und Korrektor 0,75x SkyEye Observatory 70x300 L40x300 R40x300 G40x300 B Here, the background is 1 priority.I have tried to get the most out of the deep sky.There are many small galaxies in this area.The picture is much cropped and much stretched, and the resolution is a bit broken because of this.But I think it was pretty ok.Feel free to come up with constructive feedback
  4. 4 points
    Bear in mind you already have the most precious optical devices you could ever hope for, your own eyes. You can drink in the splendour of the universe just by using them. Might not curb your desire to spend on more Astro Gems, but just being aware that there is nothing you can buy that can ever compete with what you already have may temper your spending a bit . Ron.
  5. 3 points
  6. 2 points
    Last week, I didn't know what else to shoot with my Samyang 135mm f2 lens and I remembered that I had a RGB photo of the Cygnus region shot with a 50mm f1.8 lens. I decided to try and shoot some Ha with the same lens to see if there's an improvement. Very glad I did. I really like the outcome. I hope you like it too. RGB - 10x600sec ISO800, IDAS LPS-D1 CLIP filter Ha - 36x300sec ISO1600, Astronomik 6nm Ha clip in filter Emil
  7. 2 points
    I was never satisfied with this image. It was one of the first images I took with the FSQ 106 and .6x reducer. This was taken when I did not yet know what was wrong with the setup--either spacing of sensor orthogonality--something was wrong since the stars were deformed in the corners. The good news is I sent the FSQ back to TNR and they recollimated it--it had come to me slightly out of collimation. Cant wait to test it. But the stars were only one thing I could not get right. My inclination was always to push the data too far--trying to bring out faint details, like the reflection nebula surrounding the core. This would invariably cause a background issue around stars. The data could just not handle it. I think I have finally found a middle ground Red: 214 30 sec Green: 168 30 sec Blue: 118 30 sec Lum: 172 30 sec
  8. 2 points
    About time, its so easy to get to the Moon but they should have dragged the Mir space station into Lunar orbit rather than let it crash and burn as a first way point. Alan
  9. 2 points
    Taken at astro camp in East Sussex on 13th May during a first quarter Moon. I last attempted this 5 years ago and have been meaning to come back to it. Hubble palette plus RGB stars. My first image with a Baader 3.5nm Ha filter, Still not sure whether it is any improvement on the 7nm. Atik428EX & SWED120 + FRHa 3.5nm 15 x 600Oiii & Sii binned 300 x 8 eachRGB 4 x 100 binned EachMount HEQ5Total imaging time 3 hours 50 mins on narrowband with a further 21mins for star colour in RGB.
  10. 2 points
    Twenty easy and simple years owning a visual dob spoiled me into thinking that doing the research, getting input from various sources, and springing for a basic imaging rig was as far as the cost would go, but I underestimated by a good deal the cost of all the 'extras' necessary to get another step closer to better photos, or simply to acquire necessary gear that was overlooked in the original research. SGL was a great source of information and encouragement as I sourced my rig, but nobody ever pointed out that once you think you've reached the end of the road and can now order all your stuff and away you go, there is always another, smaller road that continues the journey, and the cost. I don't say this in blame, I am, after all, responsible for everything I do, and of course everyone here wants to support a budding fellow amateur astronomer just as I encourage people following behind me, I just wish I could believe that the next time I tell my wife that this purchase will finally complete my setup, it will actually be true.
  11. 2 points
    The 7mm Nirvana is better for observing the moon really but just wanted to try the 4mm. Might use it on nights of great seeing.
  12. 1 point
    Last night I could not resist drawing Kepler (again). The more one looks at this crater and its rays the more one appreciates the angle the asteroid struck the surface. One side has a general splatter but the opposite side has very definite rays which indicate the asteroid came in from left to right on my sketch. The other main crater is Encke. The crater with a ray going through it is Kepler C. Mike
  13. 1 point
    Getting refurbished laptops off Amazon is usually really quick. Maybe keep your laptops under some rain protection?
  14. 1 point
    Unfortunately NO... there are always going to be those bit and items that we'll always crave...
  15. 1 point
    Came through the post a few days ago a very nice MPA - TAK 2.5 FT focuser for my Tak FC 100DL and after I said I was happy with the stock focuser...hmmm! However It’s beautifully engineered and an absolute delight to use
  16. 1 point
    Well when I get round to doing it I will let you know. Weather is poor lately though last night was clear but with close to a full moon, didn't bother in the end. I think the AZ EQ has a higher weight rating than the EQ6 but I could be wrong, I feel if I were to fit it up it may be with the .63 reducer which make the length a bit more manageable for someone without any experience at this longer length. Alan
  17. 1 point
    Hi welcome to SGL from Peter in Bedfordshire
  18. 1 point
    I also use the DSM app. In my opinion it's a pretty reliable, cheap alternative to a dedicated SQM meter working down to about SQM 21.5.
  19. 1 point
    No problem but please do email us details. Then we will know who you are and how we can best help Steve
  20. 1 point
    Is it not simply easier to align something with three points of contact? Much like a three legged stool self aligns without wiggling? The roundness in general puzzled me somewhat though. Sure things screw on and off with ease but just as easily do they unscrew for various reasons... I'd be all for a non rotating assembly system that clicks in place. I'll buy your first focuser Olly /Jessun
  21. 1 point
  22. 1 point
    Can somebody help my name this lunar location. Many thanks for he help.
  23. 1 point
    Very nice crater mosaic
  24. 1 point
    At least you do have some sun! Good clean captures.....
  25. 1 point
    Thanks Cotak - that is what is so excellent about these forums. Your info has nailed the problem. The board that I pulled out is V1420 (obviously an old-ish one) and the one the retailer sent me to include the balance option is V1441. No plus, so that's the issue. So easy to think it's something you've done or not done yourself. Thanks for your help - sanity saved. Keith
  26. 1 point
    Cooling a scope down only to heat it up again seems most illogical. An alternative is to stop the heat exchange process by blocking the radiation. Once your scope has cooled sufficiently, wrap it in insulation. This will stop the tube radiating heat. The effects will be two fold: firstly, for an SCT, the lack of tube radiation will have a similar effect on the corrector plate if combined with a long dew shield; secondly the lack of radiation will stabilise tube currents and reduce seeing issues. Aluminium bubble wrap is very inexpensive and can easily be layered and cut as a wrap-around connected by velcro.
  27. 1 point
    Lovely mages. Well done Wouter.
  28. 1 point
    sweet images. Wouter.
  29. 1 point
    Happy birthday! By the way, I have a "hundred Euro rule": purchases over that limit need very careful consideration!
  30. 1 point

    From the album: Hyperstar and ASI 294 Pro

    Pleiades. 30 x 10 seconds. Total of 5 minutes.
  31. 1 point
    Can I ask what sort of weight the 12 inch is on the mount with the other running gear. I have a AZ EQ 6 and would like to try my Meade 12 inch SC on it, I have always thought it was a none starter as the mount is rated at 25kg and I think the tube is about 18kg but can't find any info, 10in yes and 8 inch but not 12. Interesting build and nicely done if I may say, the bricks you are using are the exact same I made a wall of outside. Alan
  32. 1 point
    Nice one Dan. It’s got everything. You’ll be giving up the day job soon! Must have taken a while to find that spot. Paul
  33. 1 point
    Thanks for the info, I hope Santa brings you what you want. Can he get a ten inch down the chimney? Marv
  34. 1 point
    Mars this year gave a real Show. . . That being so, I could not fail to register it. This composition, made with an approximate interval of 10 to 15 days between the photos, starts on July 31 when the planet reaches the largest apparent diameter (24.3 "arc) and ends on December 5 when it was with only 8,9 "of arc. Three things are very evident in such a work: first, the marked reduction of the diameter as the planet departs; secondly, the phase decrease as it approaches the quadrature and, finally, the marked reduction of the South Polar Calota, which, in the last photo, is reduced to a small point. . . Like Nike the Greek Goddess of Victory, the source of my inspiration, Mars has won my expectations, won my longings and brought me the feeling of having witnessed an unforgettable epic event. . . "The planetary arrangement was inspired by the shape of the wing of the Goddess Nike" PS: This was a composition I had saved unheard of for the Insight Investment Astronomy Photographer of the Year 2019. Although it was not selected, it deserves to be published! https://www.astrobin.com/full/399358/0/?nc=user
  35. 1 point
    Think it would sag at least. The banana scope.
  36. 1 point
    I have a small list of essential purchases that I have been updating since 2009. The way items appear and disappear from the list is quite comical in a way. Items generally sit on the list for five or more years. Items, once purchased after years of planning are sometimes swiftly resold as mistakes. The only constant in all the chaos is that the list gets longer!
  37. 1 point
    Jazz musicians have a term for this 'chasing the tail'. There's always temptations Neil, but yeah I think that the 'temptations' become a little less 'urgent', so I would like to think that there is light at the end of the tunnel. Active participation (however occasional) ought with time supersede the, what seems, endless compelling purchase listing. I find myself continually mindful to this and that and avidly check out used / retail listings, I haven't spent on astronomy (a good sign) so far this year, a record I think, quite a (financial) relief. Yet for example, I took a scope for a family visit and outreach lunar session last weekend to Lancashire, (which rather weirdly I plan around lunar phases), acts as a great ice breaker interacting with nephews, nieces etc and some equipment that hadn't been used for a while got a good airing with excellent lunar observations. So consequently as Mike has implied, you reach a 'happy place' eventually with what you have.
  38. 1 point
    I had a Nikon D40 for a few years and loved it for regular photography (eventually replaced it with a more convenient Micro-4/3 Olympus). As for astrophotographic use, I did my first experiments with it (before transitioning to a modded webcam and then a planetary CCD). For simple Milky Way stacking and Solar System single-frame or a few-frame stacks it did the job:
  39. 1 point
    Yes it does, make sure you download the drivers etc..
  40. 1 point
    Fruitful day today, finished all the cladding, quite happy with the results Led strip fits beautifully also last week my wife applied some liquid rubber as a moist barrier With the cladding done i can focus on the interior of the observatory.
  41. 1 point
    Looks nice, we were at Burwash about 20 miles West of there on the Sunday / Monday couple of lovely clear nights. Dave
  42. 1 point
    That was a nice read Matthew - thanks for posting the link to it Have you managed to use the 130mm F/9.2 LZOS yet ?
  43. 1 point
    When I bought my 10" Dobsonian, I wrestled over the choice of different makes too. The Bresser did appeal with the dual speed focuser and the rings, (which would have made conversion to a big EQ later easier and cheaper). The Skywatcher flextube appealed because of the more compact size for storing and carrying, and it could also "retract" slightly giving more in-focus travel, enabling a binoviewer to focus without a Barlow. In the end I bought a GSO deluxe, because it had the dual speed focus, adjustable balance on the ALT, and a proper "lazy susan" az bearing. I was very pleased with it, very well made and excellent optics. It's past tense now though, because I've now gone up to a 12 inch flextube goto, and no-way could I contemplate moving a solid 12".... This Astronomy Gear is a damn slippery slope, so much choice, so much grass that's always greener on the other side of the fence....
  44. 1 point
    Not much time to tinker this evening. Have to do some work I did manage to complete the varnishing of the floor in the warm room however, which means I can cross "seal the floor" off my list and hopefully get the carpet tiles down this weekend, reducing my dwindling pile of materials even further. I didn't have time to look at the alt-az peg for the HEQ5 again, but as I don't have to take my daughter swimming tomorrow thanks to a school performance hopefully I can sort it then. I've also moved a few bits and pieces down from the house. I'm slightly mystified however that whatever I take to the observatory, the space occupied by the kit in the house doesn't seem to get any smaller. James
  45. 1 point
    Not sure how you in-line the pics so they're all at the end Anyhoo, initial testing shows that the clarity thru the cheapo dome is variable, with wobblies that can be seen in the focus of the oak tree. Still, an image of the sky can be had which is the aim of the game Focus could do with a tweak too but not so easy now its set up. At the moment, with the moon so bright only a few bright stars show but that's not too bad and about what I was expecting to achieve tbh. I had a play with manually setting exposure etc and can get the sky dark, but likely that'd mess the day image quality so have for now left it set to auto exposure, white balance and turned off stuff like BLC, DNR, WDR etc. The old Mk-1 eyeball showed a lot more but no surprise there, plus the moon glow was masking a lot of the sky even to the naked eye, so a fair result with this cam I think. Not having a spare micro-SD to use I didn't leave it recording (only live watching at the mo) so no idea if things improved once the moon had set, will have to give that a go at some stage, but can't easily install the SD now the casing is sealed up so would have to record on the PC directly. A handy reason for going the IP route really as I have a switch in the shed linked back into the house for the CCTV systems tho the hog and sky cams are not linked into the CCTV recorder as its already at the full compliment of cameras. I'm not expecting this would be a great observing rig for imaging etc, just a bit of fun for the moment...
  46. 1 point
    Fabulous captures Avani.
  47. 1 point
    Hmmm, let me think now.... Moon dog? ?? https://en.m.wikipedia.org/wiki/Moon_dog
  48. 1 point
    I know they aren't bees ! ? But I don't kill anything unless I have to.
  49. 1 point
    Rogelio Bernal Andreo pointed this one out: patches of dust near the Black Eye Galaxy (M64). I found this one quite difficult to process and I'm still not sure if I'm happy with the colours... There's a large difference in brightness between M64 and the lane of dust. Usually I try to keep away from local brightness adjustments, but this time I had to process M64 separately, because otherwise it would be completely overexposed. Captured last weekend from Grandpré (Ardennes, Northern France). Total integration time of 5 hours and 40 minutes. 5 minutes subs @ ISO 400. Takahashi Epsilon-180ED and Nikon D810a.
  50. 1 point
    M51 / Arp85 - The Whirlpool Galaxy in LRGB This beautiful pair of interacting galaxies was captured on two hazy nights at the end of February, pretty much the only cloudless nights in 1½-2 months!! With sky conditions being quite bad, and shooting in the direction of the worst light polution in my area, the port of Esbjerg - I really didn't think it would turn out this well. The 11.1 hours of total integration time surely helped to bring out the details of M51, and helped remedy both the LP and the sky conditions. Captured through a Skywatcher Evostar 80ED with the Altair Astro Hypercam 183m v2 and Baader LRGB filters, riding on an EQ6. Capture sessions were controlled by N.I.N.A. and processed mainly in PixInsight with finishing touches in Photoshop. Uncompressed version: https://www.astrobin.com/full/393566/B/?nc=jjosefsen Please feel free to comment and critique, I am here to learn! Personally I still can't get nice stars in my images, this one is no exception, they are bloated and overstretched.. I'm convinced the answer is in seperating the stars from the rest of the image.
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