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Century Quote by Gan De

“Every 12 years Jupiter returns to the same position in the sky; every 370 days it disappears in the fire of the Sun in the evening to the west, 30 days later it reappears in the morning to the east...[Observation in 4th century B.C.]” quote by Gan De
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“Every 12 years Jupiter returns to the same position in the sky; every 370 days it disappears in the fire of the Sun in the evening to the west, 30 days later it reappears in the morning to the east...[Observation in 4th century B.C.]”

Gan De

About This Quote

Source Historical Text: Astronomical observations, 4th century B.C.

Jupiter’s cyclical motion and its periodic disappearance and reappearance illustrate predictable celestial patterns.

In simple terms: Jupiter follows a regular cycle in the sky.

Key Takeaway

Observe and respect natural cycles.

Themes

astronomy cycles predictability nature

Mood

curious analytical educational

Type

historical scientific

When to use this quote

  • navigation
  • calendar planning
  • educational curricula
  • scientific research

Key Concepts

celestial mechanics periodicity observation

Questions to Reflect On

  • What can we learn from ancient sky‑watching today?
  • How do cycles influence human planning?
A Different Perspective

Ancient observations lack precise timing and modern verification.

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