In astrology, planets are classified as diurnal (day) or nocturnal (night) based on their natural affinity with either the Sun’s energy or the Moon’s energy. This classification helps astrologers understand how a planet expresses itself depending on the time of birth and chart conditions.

Diurnal Planets (Day Planets / Nehari)

• Definition: Planets that are more active and effective during the day.
• Characteristics: Express their energy outwardly, assertive, strong, and visible in action.
• Diurnal Planets:
  • Sun – Symbolizes self, vitality, leadership.
  • Jupiter – Expands opportunities, optimism, wisdom.
  • Saturn – Discipline, structure, responsibility.
  • Mars – Action, energy, courage (sometimes considered neutral but more active in day charts).
• Expression in Life: These planets thrive when the native is born during the day, showing their qualities more prominently and positively.

Nocturnal Planets (Night Planets / Leyli)

• Definition: Planets that are more active and effective during the night.
• Characteristics: Express energy inwardly, subtle, reflective, and intuitive.
• Nocturnal Planets:
  • Moon – Emotions, intuition, nurturing.
  • Venus – Harmony, love, relationships.
  • Mercury – Thought, communication, adaptability (sometimes neutral but more receptive at night).
• Expression in Life: These planets thrive when the native is born at night, expressing their qualities subtly, emotionally, or intuitively.

Importance in Chart Analysis

• Time of Birth Matters: Diurnal planets are stronger in day charts; nocturnal planets are stronger in night charts.
• Balance of Energies: Understanding day/night planets helps evaluate how energies are expressed—outwardly or inwardly.
• Personality & Life Approach: Influences temperament, decision-making style, emotional expression, and social interaction.