Sun Position Calculator

Sun Position Calculator: The sky app turning travelers and sleep geeks into sun-chasers

TLDR: An interactive 3D Sun Position Calculator shows sunrise, daylight, and seasons in your browser. Commenters gush, share an archive link, swap jet-lag travel stories, and pitch circadian projects, while a small chorus gripes about WebGL loading—sparking a playful “update your browser” vs “let me in” debate.

The internet is basking in the glow of the Sun Position Calculator, a 3D browser toy that shows sunrise, sunset, and daylight hours in a way even your grandma can vibe with. The crowd’s mood? Pure delight, led by fennec-posix’s “This is incredibly cool!” Meanwhile, community archivist sanbor dropped an archived version like a museum curator saving the vibes for future generations, and then unleashed the hottest pro tip: turn on the “Illuminating Sun Beam” via the graduation cap icon—basically a cheat code for understanding the sky.

Drama alert: some folks sat in “Loading—please wait” purgatory thanks to the modern browser + WebGL requirement, sparking a mini “update your browser” vs “why gatekeep the Sun?” skirmish. But the real fun was the life-hack energy. netsharc turned the app into a jet-lag oracle, pondering dawns and dusks on a New York-to-Singapore marathon flight and teasing a Europe-to-Canada journey that might be all daylight—cue jokes about sunscreen at 35,000 feet. Sleep nerd mannanj pitched a collab to build a circadian rhythm visual (Andrew Marsh, pick up the phone!), while the rest debated Team White Background for clean printouts vs Team Starfield for cosmic vibes. Education mode or space wallpaper? With geocentric vs heliocentric views, everyone’s finding their favorite way to chase the Sun.

Key Points

  • The app requires a modern HTML5 browser with JavaScript and WebGL enabled.
  • Users input latitude, longitude, timezone, date, and time to obtain solar azimuth/altitude, sunrise/sunset, daylight, and twilight details.
  • 3D view settings include multiple projections and orthographic views that can lock to the Sun direction or site longitude.
  • Explanatory overlays and animations illustrate Arctic/Antarctic circles and the Tropics at solstices, plus twilight and Sun direction.
  • A “Useful Dates” menu lists solstices, equinoxes, and daily events like twilight phases, sunrise, local noon, solar noon, and sunset.

Hottest takes

"This is incredibly cool!" — fennec-posix
"I recommend activating \"Show Illuminating Sun Beam\" under \"Explanatory tools\"" — sanbor
"I wondered what their experience of sunrises and sunsets were" — netsharc
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