The enormous effect of the Sun on Earth has been recognised since prehistoric times, and the Sun has been regarded by some cultures as a deity. The synodic rotation of Earth and its orbit around the Sun are the basis of solar calendars, one of which is the predominant calendar in use today.

The Sun is roughly middle-aged; it has not changed dramatically for more than four billion years, and will remain fairly stable for more than another five billion years.

The Sun in Astronomy

• The sun's diameter is about 1.39 million kms
• The circumference around the Sun is about 4.37 million kms
• 109x the diameter of Earth
• 333,000x the weight of Earth
• 24,000 to 28,000 light years from the Milky Way core
• Galactic Orbit period - 225-250 million years
• Surface temperature of the Sun is 5,600 degrees celsius

The Sun in Astrology

• Rules Leo and the 5th House
• The Sun's function revolves around the expression of Life Force
• The development of a coherent, operational self-image
• The focusing of willpower and the capacity for positive action. The creation of ego

The Sun Asks

• Who am I?
• What kinds of experiences help me strengthen and clarify my self image?
• Where can I find and expand my personal power?
• What unconscious biases shape my view of the world?