• @[email protected]OP
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    197 hours ago

    Its like a newtownian just that it has a spherical mirror (cheaper to make) and uses a corrective lens in front of the eyepeace.

    • @MrFappy
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      397 hours ago

      Alright, now explain it.

      • @[email protected]
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        6 hours ago

        It’s an inferior telescope with a cheap mirror and built in contacts lenses to make it work

          • @keckbug
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            74 hours ago

            As with nearly everything in astronomic optics, it’s named after people associated with its creation. Robert Jones and Thomas Bird are the two in this case. Here’s a thread on Cloudy nights with good info.