Sun Position Calculator

(drajmarsh.bitbucket.io)

50 points | by sanbor 3 hours ago ago

12 comments

  • sanbor 3 hours ago ago
    • observationist 3 hours ago ago

      Awesome, thanks for the backup link.

      Amazing visualizer!

  • samcheng 24 minutes ago ago

    This is a cool visualization. I wonder if it uses the excellent solpos.c library from NREL as the core engine?

    https://www.nrel.gov/grid/solar-resource/solpos

  • netsharc an hour ago ago

    Some friends flew eastwards from New York to Singapore on a direct flight (it's one of the longest flights). I wondered what their experience of sunrises and sunsets were (they departed 10PM), I've noted down the times but haven't plotted it...

    Later this year I'm flying from Europe to the West Coast of Canada, and it seems I'll be in daylight for the entirity of the flight (departing 2PM local, landing 4PM local after a 10 hour flight).

    Edit: well, FR24 has a handy flight tracking that includes the daylight progression: https://www.flightradar24.com/data/flights/sq23#3de5a306

    So they flew 18 hours and experienced a full daylight cycle, arriving just before the second sunrise...

    • frikk an hour ago ago

      I flew from central US to western asia (via moscow) and it was an interesting experience for the reasons you mentioned. I think I left early Saturday morning local time and arrived Sunday evening local time. I saw a sunrise, sunset, sunrise, sunset in 18 hours of travel time.

      • Obscurity4340 21 minutes ago ago

        I wonder what the physical toll on a man exprriencing three consecutive solar days?

  • recallingmemory an hour ago ago

    Rate limit for this resource has been exceeded

  • sanbor 3 hours ago ago

    I recommend activating "Show Illuminating Sun Beam" under "Explanatory tools" by clicking the graduation cap icon in the top right corner.

  • wumms 41 minutes ago ago

    Love it. Needs a moon.

  • fennec-posix 3 hours ago ago

    This is incredibly cool!

  • mannanj 3 hours ago ago

    I've been wanting to make a little circadian rhythm graphic based on the sun, would love to have a graphic like this to support it. If Andrew Marsh is listening, would love to create something to extend what I have (Preview at sun-taupe.vercel.app)

    • layman51 2 hours ago ago

      This is really cool! The clock on your page reminded me too of some sites that show a "real solar" time based on your location where solar noon corresponds to 12:00 PM.