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GuLinux

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About GuLinux

  • Rank
    Star Forming

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  • Website URL
    http://blog.gulinux.net

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  • Gender
    Male
  • Location
    Ealing, London, UK
  1. GuLinux

    Imaging with a Star Adventurer

    WOW! I'm a bit skeptical though. It might be something that happens only on my setup, but I need to be very careful and delicate with tightening the RA lock, otherwise I risk messing with the polar alignment. I think that wrench might take it a step further..
  2. GuLinux

    Star Adventurer Tuning

    Interesting thread. Sorry if I go slighly off topic, but do you know from where I could draw a 5v power line from the SA circuit? directly from the regulator perhaps? I'd like to to a minor modding, adding an embedded polarscope illuminator instead of using the external one.
  3. GuLinux

    Stellarium - adding comets

    Just an FYI, solar system updates are builtin in KStars (which is also available also for Windows and OSX, not only Linux)
  4. GuLinux

    Imaging with a Star Adventurer

    Really stunning, congrats I really have to get myself up to work, I need to catch up with these results
  5. GuLinux

    Imaging with a Star Adventurer

    Hi, I couldn't find specific information about that scope OTA weight, but my guts say it's probably too heavy. Additionally, although these newtonians are excellent first scopes, they're not very useful as astrophotography scopes: there's probably too much coma, and I doubt you'll be able to get focus with a DSLR, as the focus excursion is typically very short. Furthermore, a focal length of 500mm starts to be way too much for a star adventurer, particularly if not autoguided. And of course, adding an autoguider will add even more weight.
  6. GuLinux

    How do I further lower brightness on this RDF?

    In theory, the "how" is very easy: just add a resistor in series. Not sure about the value, but you can do a few tests until it satisfies you. The only problem is that I don't think there's gonna be a lot of space to put the resistor in, so you'd have to keep this dangling wire + resistor out of it.
  7. I think there are a couple of newspapers in Italy that made the same assumption (about Uranus I mean). But that's nothing, as the last lunar eclipse was approaching, they also said the moon was going to be red because of Mars being so close
  8. GuLinux

    Imaging with a Star Adventurer

    Just be aware of what version you get: the "Super Takumar SMC" (super multi coated) is probably ok, and I've seen gorgeous pictures done with it, but I got the older version instead (I think it's called only "Super Takumar", non SMC) and I got massive chromatic aberration and stars bigs as baloons.
  9. Pretty much everything in my github repo https://github.com/GuLinux/ Mainly using c++, python and Javscript (React) as frontend. I'd say the highlights are StarQuew, PlanetaryImager and SkyPlanner
  10. GuLinux

    Skywatcher Star Adventurer

    Slightly off topic, I'd really like to understand how reliable is the load capacity rating on tripods. Sometimes they just feel like they put random-ish numbers on them, sturdy tripods rated at 5/10KG, and much cheaper and lightweight tripods rated at 15. Mine (neweer carbon fiber) is rated 15KG, and although it's quite stable, I don't think that number can be taken too seriously.
  11. GuLinux

    ASI094 and IR filter

    You're right though, maybe the fastest solution is to just use a full aperture filter. I'm a bit concerned the results won't be the same, quality wise (I think I read full aperture filter introduce more problems, and more importantly, it wouldn't be a filter designed for astrophotography, and might filter out h alpha, for instance)
  12. GuLinux

    ASI094 and IR filter

    Thanks! I already have this: https://astronomy-imaging-camera.com/product/canon-eos-m54-adapter which has the exact length required for focusing already. It is composed by two parts though, and there are threads inside it, so in theory I could screw an adapter with the filter inside it, problem is I have no idea what the thread size is...
  13. GuLinux

    ASI094 and IR filter

    Hi, I finally decided on (yet another) upgrade for my astrophotography gear, and I bought an ASI094MC Pro. The camera just arrived, and it surely looks like a great piece of equipment. The only big problem so far, is that I misunderstood how filters should be connected to the camera. I bought a 2" IR/UV filter, and it does fit perfectly when you use the 2" nose adaptor (obviously), but I also planned to use this camera with Canon lenses, and of course there doesn't seem to be a way to screw the 2" filter into the Canon adapter. I saw this that could potentially help: https://www.365astronomy.com/TS-M54-to-M48-2-Filter-Thread-Adapter-for-Filter-Wheels-TS-Adapter.html Except I can't be 100% sure it does the job, and I might lose precious 1.5mm of optical path, and be unable to focus to infinity. Any thoughts?
  14. You have indeed a nice camera, but as others said, it's not exactly the best way to get planetary images. Among other advantages, a dedicated planetary camera has a massive advantage in allowing to save raw video frames (in SER formats) rather than encoded (and lossy) videos. But apart from that, I really think one of the worst thing in your setup is the optical path. As you mentioned, you have a very good telescope, but putting in between both a barlow and an eyepiece means having too many elements, and eyepiece projection is not a very reliable technique, as it can create more troubles than anything else. You want only the telescope, and a *good* barlow. Here you can find a decent guide on what focal length you might want to obtain (and therefore, wether you need a barlow, and with which multiplying factor): http://astronomy.tools/calculators/ccd_suitability . It's not exactly suited for planetary imaging, but it gives you an idea. As for why you can't get an image at all without the eyepiece, I highly suspect it's just a pointing issue. If the planet is not perfectly centered in the camera field of view, you might just miss it. If you point your object with an eyepiece, then remove the eyepiece and put on the camera, the weight difference between the two setups might shift the mount. In this case, you need to use either a flip mirror, or a (very well aligned) guide scope.
  15. Sorry, I might have been confusing I didn't mean traveling to one place only (my family), I mean multiple location. I need a solution that can be really portable, particularly if I don't have a power line at hand
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