Empirical Earth · How We Know — History & the Cosmos

How the Sun travels between the tropics

The claim

“The Sun just circles in wider and narrower loops over a flat Earth.”

What is measured

The subsolar point is a real, datable place: +23.44° at the June solstice, 0° at the equinoxes, −23.44° at the December solstice, sweeping every latitude between twice a year. Its schedule is the tilt written as a calendar.

What would show this is wrong

an overhead noon Sun observed more than 23.44° from the equator, or solstice/equinox dates the tilt model fails to predict.

Sources

  1. Solar declination, the solstices and the tropics. The subsolar point (where the Sun is directly overhead at noon) migrates between +23.44° (Tropic of Cancer, June solstice) and −23.44° (Trop link
  2. Lunar standstill and the Moon’s declination. The Moon’s orbit is tilted ~5.14° to the ecliptic, so its declination swings between about ±18.3° and ±28.6° over an 18.6-year cycle. Since a bod link
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