there is a specific pattern of moon phases and the act of waning means decreasing so when the illuminated side of the moon is shown on earth and is decreasing to lead up to the new moon phase (where you cant see any thing in the sky)that is a waning moon.
The moon is in its waning (shrinking) gibbous phase for roughly the week after the Full Moon.
Waning.
Waning Waning means decreasing in size, as the Moon moves from the Full Moon toward a New Moon. Waning Gibbous - moving from Full Moon to Last Quarter Waning Crescent - moving from Last Quarter to New Moon
A moon that is reducing in the size, of the illuminated surface visible to earth, day by day.
its called a waning
Waning.
The moon is waning when it is getting smaller
Waning gibbous, Third Quarter and Waning Crescent are the 'waning' moon phases.
Crescent.
The Moon appears to be waxing when it is transitioning from a new moon to a full moon, and waning when transitioning from a full moon to a new moon. Without specific information on the current lunar phase, it's not possible to determine if the Moon is waxing or waning at this moment.
A moon that gets smaller after the full moon is called a waning moon. It goes through phases from full moon to new moon.
Nothing special. The Moon has days and nights like Earth does, except on the Moon it takes 29.5 days for one lunar "day" and "night".When you look at the Moon and it is "waning", what you are seeing is night falling (slowly) on the side of the Moon that we can see.