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Google’s Project Suncatcher to put ML infrastructure in space

233 points · 553 comments · xnx

  1. sanj · · focus · HN ↗
    Does anyone understand the math behind this bit?

    > In the right orbit, a solar panel can be up to 8 times more productive than on earth....

    1. exe34 · · focus · HN ↗
      Presumably they get exactly the same amount of sunlight 100% of the time instead of a few hours peak on earth? I'd say 8x is in the right order of magnitude.
      1. Andrex · · focus · HN ↗
        My layman expectation would have been much higher. It's got no atmosphere refracting anything and it's closer to the source of energy.
        1. exe34 · · focus · HN ↗
          LEO isn't much closer to the sun, and the atmosphere probably doesn't absorb a huge amount at the wavelengths they work.
        2. echoangle · · focus · HN ↗
          The distance from earth to the sun is 150 million kilometers and your orbit is probably only a few hundred kilometers up (and realistically it’s sun-synchronous and perpendicular to the earth-sun axis), so the distance change doesn’t really matter.
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