Spot the Waning Gibbous Moon in Morning Skies This Week

The days following the Harvest Moon are an ideal time to observe the moon during daylight hours, when it appears as a pale orb against the blue sky. Following the full moon on September 26, observers can view the waning gibbous moon in the western sky during morning hours as it sets progressively later each day. This phenomenon occurs because the moon appears in the daytime sky approximately half the month, though it is typically less noticeable against daylight than at night.

The moon becomes visible in daylight skies roughly half of each month, though it remains difficult to spot against bright blue skies. The optimal viewing window occurs in the days immediately following a full moon, when the lunar phase transitions to waning gibbous. During this period, the moon's rising and setting times shift progressively later each night, positioning it above the western horizon after sunrise where observers can catch glimpses of its pale disk.

The last quarter moon phase arrives several days later, presenting exactly half of the moon's illuminated side to Earth. This phase rises during nighttime hours and sets around midday, making it visible high in the eastern sky during early morning hours before dawn. Different moon phases thus offer distinct viewing opportunities throughout the month for observers willing to check appropriate sky locations at specific times.