Moon Phase on September 12, 2027
Moon Phases: September 10, 2027 – September 14, 2027 Moon Phases: September 11, 2027 – September 13, 2027
Waxing Gibbous Moon on September 12, 2027
The Waxing Gibbous phase occurs after the First Quarter and before the Full Moon. During this phase, more than half of the Moon's visible surface is illuminated, but it is not yet completely full. The term "waxing" refers to the increasing illumination, while "gibbous" describes the more-than-half-lit shape. This phase indicates that the Moon is approaching Full Moon.
This phase is most visible from evening until well after midnight. On this date, the Moon appears high in the southern sky after sunset and remains visible until it sets. The graph below provides key details about the Moon's position, including its altitude (height above the horizon), azimuth (direction), and the Sun's altitude. Use this information to understand the Moon's movement and plan your observations more effectively.
All times are in local time (UTC-04:00). They take into account refraction. Times reflect Daylight Saving Time (DST) where applicable. In certain polar regions (the Arctic and Antarctic), the Moon or the Sun may not rise or set.
Waxing Gibbous Moon in Detail
This phase is characterized by a bright, nearly full appearance and is clearly visible in the evening sky. Its illumination increases nightly during this phase, and its duration in the evening sky grows accordingly. The following sections provide detailed information about its appearance, position in the lunar cycle, cultural significance, and visibility.
Key Features of the Waxing Gibbous Moon
Appearance: The Waxing Gibbous Moon appears as a rounded and slightly swollen shape with over 50% of its surface illuminated. In the Northern Hemisphere, the right side is bright, while in the Southern Hemisphere, the illumination appears on the left. The phase is easily recognized due to its brightness and curved form. Illumination during this phase ranges from approximately 51% to 99%.
Position in the Lunar Cycle: This phase follows the First Quarter and leads up to the Full Moon. It typically occurs about 8 to 14 days after New Moon. As the Moon continues its orbit around Earth, its illuminated portion grows each night, culminating in the Full Moon.
Symbolism and Cultural Significance: The Waxing Gibbous Moon is often linked to preparation and steady progress. It represents a period for reviewing goals, making adjustments, and maintaining focus before reaching the Full Moon. In many cultures, this phase symbolizes persistence and thoughtful action toward completion.
Visibility: This phase is best observed in the evening and early night. It rises in the afternoon, becomes prominent at dusk, and remains visible until well after midnight, often until the early morning hours; near the Full Moon it can remain visible until close to sunrise. Its bright, rounded shape makes it stand out in the night sky.