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About iapa

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    Sub Dwarf

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  1. iapa

    Astro Dark Returns!!

    Still have 17hrs of day light it's a month yet before I see night time.
  2. iapa

    Mini-Pc - Weatherproofing

    I now have industrial strength Velcro that allows me to attach 4 port USB 3 hub to the mount plate, and then attach a USB powered stick PC to the hub A WiFi access port sits in the rat cage - two cables run to the pier - 240V and Cat 5e Pic shows earlier attempt, but it wasn't very tidy. No issues leaving it out overnight during the winter
  3. iapa


    I've a 10" reflector sitting on a Celestron CGEM-DX mount bolted to an Altar Astro 8" pier, on a 12" x 12" x 12" hunk of concrete. This is used for imaging. Rock solid.
  4. I been away a while - you lucky people Notices that SGPRo 3 is now available. Has anyone any experience of issues with this latest version More relevant, what are the benefits - beyond seeing a current version for support?
  5. Hi, Been away for some time, so, was wondering if there has been anything significant in imaging kit; cameras, mounts of major s/w updates?
  6. have you changed the speed control on the software? It may be that it has been turned right down so is moving VERY slowly. I had this symptoms at one point and this was the solution
  7. iapa

    5 sisters observatory

    M81 Ha.bmp
  8. iapa

    5 sisters observatory

    Just need to find time to get the processing done from clear nights last month
  9. iapa

    Guiding - best camera

    In comparison to the Starlight Xpress Superstar Autoguider, how does the X2 compare in practice; its only £20 more expensive.
  10. I am looking for people's opinion on best imaging camera to use, if necessary budget can stretch to £1K, but, refer to be under £300. It will primarily be used for piggy back guiding on 10" f4 newt, but occasionally with 8" SCT (piggy back using 80mm f5, or possibly with OAG TBD)
  11. I've always wondered how far 'off' PA can be before significant image distortion appears. e.g. for60s subs, is 30arc-min reasonable, or does one need better. I did have a formula for working that out but never really been in a position where I was that well set up to take this into account Anyway, I've lost the reference now I need it
  12. iapa


    Does exposure duration not also have impact? I'd expect that 30 x 90s subs would be better than 30 x 60s? In which case, would you not then want 45 x 60s? But, diminishing returns from 30 subs upwards would render the last 15 point less? Still trying to get my head around that one
  13. Which is a point Th one I purchased is NOT dimmable.
  14. I bought an A4 USB powered tracing tablet, for use with my 8" OTAs with an old white cotton t-shirt (fruit of the look so, fairly reasonable quality) stretched over a 9" (or was it 10" ?, either way it was <£5) Noza Tec A4 LED Stencil Board Light Box Artist Art Tracing Drawing Copy Plate Table For Kids Light Weight Thin Plate from Amazon

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