A Small Telescope That Surprised Me

(adfr.io)

43 points | by speckx 22 hours ago

14 comments

  • poulpy123 3 minutes ago
    That's weird, I'm following only 4 or 5 amateur astronomy youtube channels but they all published at least one video of the exact telescope over the last days
  • nameless912 10 minutes ago
    I've been slowly (slowly....) working on an open source version of what the Seestar provides - a 3D printable shell, easily sourced mechanics and optics, open source electronics (3D printer controller boards are fabulous here). I love the idea of smart telescopes, but I also hope and believe that someday we'll have an open source equivalent to the easy entrypoint of, say, the S30.

    Maybe I'm being too much of a purist because late model smart telescopes now allow you to grab the raw FITS files so the relative value of a fully open ecosystem is lower, but I'm trying to build towards the motivated teenager segment: someone who maybe has a Seestar or has seen one, and wants to have that experience, but wants to own it themselves and actually understand what's happening. I have the mechanics mostly working in Alt-Az mode, EQ mode is currently accomplished using a hinged plywood board fashioned into the world's shittiest polar alignment wedge, and now I'm working on figuring out how/where to source good enough optics. I have already learned a whack-ton designing the thing, and I hope that in the future the build will be interesting and informative enough for others to get a bunch of experience in Astrophotography for very little money.

    You can buy the sensors used in a lot of these telescopes for <50USD on Aliexpress, the drive mechanics and electronics are ~80, and then all you should need (hopefully) is a cheapo Raspberry Pi 3 or equivalent, putting the total BOM at under 200 bucks. I'm hoping that by early next year I'll have something presentable and we can start building an open source ecosystem to compete with these very impressive but very heavily integrated instruments.

  • exhilaration 4 minutes ago
    So like others in this thread, I bought a used telescope, a 8" Dobsonian in my case, and it's absolutely massive, like 5 feet tall. Totally different than this SeeStar. And I don't see things like the photos in this article through my telescope. Those nebulas? No way.

    So I have to ask - am I getting a more "genuine" viewing experiencing? Are stacking and perhaps AI enhancements reflecting the real night sky? Or is SeeStar/iPhone/Pixel output drifting more towards generative art?

  • pu_pe 3 minutes ago
    I'm glad to hear Claude enjoyed it.
  • zelos 22 minutes ago
    There is something fundamentally different about actually looking at Jupiter... The image might be faint, imperfect ... But it is live.

    The astrophotography/live viewing split in astronomy is interesting. For me, the whole reason I do backyard astronomy is to find the objects myself and observe directly, to the point where even using an app like Stellarium feels a bit like cheating.

    • GJim 12 minutes ago
      > even using an app like Stellarium feels a bit like cheating.

      Personally, I have no computers, phones or any electronic crap when I'm observing the sky. Just me and a manual telescope.

      I look at the sky to get away from all that shite.

  • dmarcos 30 minutes ago
    I have a Dwarflab DWARF 3 (also mentioned in the post) that I highly recommend. It’s one of those gadgets that ended up using more than expected when I bought it. I toss it in my luggage and I got to capture really nice sky pictures with little effort (Marfa TX, Patagonia, latest total solar eclipse in Spain)
    • fghorow 4 minutes ago
      I'm interested in your eclipse experience. I tried capturing totality with a seestar S50 back in the 2024 eclipse. What I found is that at the very moment of totality, I had not removed the solar filter fast enough, and the bloody thing lost lock on tracking the Sun. Rather than fiddling with the equipment, I immediately started to ignore the 'scope and just experienced the eclipse.

      That was the right thing to do!

      But removing the solar filter right at the moment of totality is such an edge case (both for the software and my wetware which was kind of overwhelmed) that I wonder how others dealt with it?

  • _joel 41 minutes ago
    Can confirm, they're a lot of fun. Especially for the person who wants minimal setup fuss and just to snap some pictures of the heavens.
  • Tepix 16 minutes ago
    > At a few hundred euros, I am no longer asking whether a smart telescope can replace a serious visual telescope

    Well, I bought a used 8 inch (203mm) telescope for 500€ a few years ago. Used telescopes can be very cheap.

    • giantg2 4 minutes ago
      I plan on grinding my own. That seems like it can be cheap too.
    • adfr 13 minutes ago
      Absolutely, and I highly recommend starting that way. The comparison was meant against building up a photography rig with similar capabilities. Even with used components, it's gonna be hard to get into this price range.
  • 0xcafecafe 29 minutes ago
    If you are buying think through whether you want a wider field of view (S30 series) or more details (S50 series). S30 might be a better bet for amateur viewing.
  • adfr 27 minutes ago
    Author here, thanks for sharing my post =)
    • deltarholamda 4 minutes ago
      It was extremely informative; I didn't even know these things existed. It opens up several interesting alternatives for teaching kids.
    • ricardobeat 13 minutes ago
      Thank you for sharing!

      A small piece of feedback: it is a really interesting article, but also quite grating to read. I'm guessing you used AI to review/edit, and it seems to have added a lot of filler and coated the piece with its own writing style.

      I found a pre-AI post much more pleasant to read: https://adfr.io/thoughts/20240207_time_travel

    • ralfd 22 minutes ago
      Quick question: Did you use AI for that post?
      • adfr 17 minutes ago
        Just for the final polish, the post itself is written by myself.
        • Aachen 1 minute ago
          As in, rewrite? Your earlier blog posts don't sound like this
  • appleappleapple 20 minutes ago
    I hate that the LLM era has turned me into a detective every time I read a piece of writing but… this prose is very AI-speak, no?
    • s3p 15 minutes ago
      Yup, exactly what I noticed. And I do think the content is really cool but the writing, the section titles, the entire site design, it all reminds me of ai :(

      Not to say anything negative about the author though, im sure this took a long time to put together whether it was written with ai or not. But I definitely noticed those ai-isms

    • comboy 17 minutes ago
      Perhaps it's better to ponder whether or not it contains information useful to you / is a pleasure to read?
      • Aachen 5 minutes ago
        Yeah, and there is no pleasure reading this. It's way too long and verbose for what it's trying to say. I'd much rather read the prompt, in bullet points or whatever format they were provided before inflating a few example pictures and notes into a short novel
      • carb 10 minutes ago
        AI-prose may be vetted, but there is no way for a reader to know that for certain as much AI-prose is not.

        As such, you cannot be sure if the writing contains correct and accurate information at all, even with modern models.

        • comboy 9 minutes ago
          > you cannot be sure if the writing contains correct and accurate information at all

          how is that related to LLMs?

  • gedy 13 minutes ago
    Nice post, and the only sort of 'advertising' that works for me, ha.

    They are out of stock unfortunately, though perhaps the pro is worth the higher price.

  • dinosaur0001 38 minutes ago
    Now I gotta go buy one