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☀️ Sun Path & Shadow Explorer

A building, a sun angle, a shadow. Change the date, time of day, and latitude, and watch the shadow stretch, shrink, and swing live — the same real solar geometry that drives daylight and overshadowing studies. No score, no target, just the physics of where the sun actually is.

Location & Time

Latitude 41°N

Day of year Jun 21

Time of day 12:00

Building

Height 20 m

Live Shadow

Sun altitude angle—

Sun azimuth (from south)—

Shadow length—

This simulation uses the same solar-position formula (Cooper 1969 declination approximation) as this platform's Solar Shadow calculator — independently re-verified before publishing against known reference cases: at 41°N on the summer solstice (day 172), solar noon altitude ≈72.5° (short shadow); on the winter solstice (day 355), ≈25.6° (long shadow) — both matching hand-calculated expectations for that latitude.

Method

Declinationδ = 23.45°·sin(360°/365·(284+n)) — Cooper (1969) approximation, n = day of year.

Altitude/AzimuthStandard solar position equations using latitude, declination, and hour angle (15°×(hour−12)).

ShadowShadow length = building height / tan(solar altitude) — flat ground assumed.

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