Sun & Moon
Sun, Earth, and Moon in Balance
Nature's
Balancing Act

As the season changes from summer to winter and vice versa, the Sun and Moon are in perfect balance, as if they were on opposite ends of a celestial see-saw:

Summer: The Sun rises in the NE and sets in the NW; the Moon rises in the SE and sets in the SW. At transit, the Sun's altitude is high; the Moon's altitude is low. The Sun is visible ~15 hr.; the Moon is visible ~9 hr.

Winter: Sun rises in the SE and sets in the SW; Moon rises in the NE and sets in the NW. At transit, Sun's altitude is low; Moon's altitude is high. Sun visible ~9 hr.; Moon visible ~15 hr.

Note: The preceding statements are true only during (or near) Full Moon. During (or near) New Moon, the Moon appears to closely follow the path of the Sun across the sky.

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Sandburg Center for Sky Awareness
A Fairfax County Public Schools Planetarium

Yin and Yang
Dynamic Equilibrium in the Universe

"The Chinese saw the universe as a balancing act between two opposed but complementary aspects of nature: yin and yang. Their strength and influence were visible in the oscillation of day and night and in the cycle of the seasons. Yin is passive, and yang is active; yin is dark, and yang is light; yin is feminine, and yang is masculine; yin is winter, and yang is summer."1

Yin (dark) and Yang (light)"In Taoism and Confucianism, they [yin and yang] are represented by two interlocked curved shapes within a circle, one white, one black, with a spot of contrasting color within the head of each."2

Everything Changes (Dynamic...)

    "The relationships between things that are more yin and things that are more yang are constantly changing. Everything is always moving from being more yang to being more yin or more yin to more yang."3 For example, see sidebar (left), Sun & Moon - Nature's Balancing Act.

Everything Seeks a State of Balance (...Equilibrium)

    "Although everything is either more yin or more yang, as an entity it seeks some kind of balance. Individually, nothing is in perfect balance, nor can it be as everything is either more yin or more yang. Something that is more yin can reach a more balanced state with something that is more yang."3 For example, see sidebar (left).

Nature is replete with numerous examples of yin and yang. See how many more examples you can think of.

  • Earth and heaven (sky)
  • Night and day
  • Winter and summer
  • The Sun actively radiates light energy (yang); the Moon passively reflects sunlight (yin).
  • The Sun shines all day (yang); the Full Moon is the only phase that shines all night (yin), rising as the Sun sets and setting as the Sun rises the following morning.
  • The Sun (masculine) and Moon (feminine) play an endless game of lover's tag: the Moon chases the Sun across the sky during the Waxing Phases; the Sun chases the Moon across the sky during the Waning Phases.
  • The cycle of Moon phases is a metaphor for life and death: New to Full to New (birth/maturity/death).



1   Beyond the Blue Horizon: Myths and Legends of the Sun, Moon, Stars, and Planets, by Dr. E.C. Krupp, p. 28.
2   The Hutchinson Encyclopedia 2000, Helicon Publishing Ltd.
3   Practical Feng Shui, by Simon Brown, pp. 16-17.

Sun and Moon Data for Washington, D.C. | SCSA Home | www.wsanford.com