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waning phases

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Q: What term is used to describe the decrease in the visible portion of the moon?
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What phase is the moon in when only a small portion of the moon is visible?

crescent


When the size of visible portion of the moon is decreasing the moon?

When the illuminated portion is decreasing from one night to the next, the moon is in its 'waning' phases.


How many days does one lunar phase last?

New Moon = the moment when none of the moon's illuminated half is visible from the earth.Waxing Crescent = about 7 days; visible portion growing from zero to half of the moon's diskFirst quarter = the moment when half of the moon's disk is visibleWaxing gibbous = about 7 days; visible portion growing from half to all of the moon's diskFull Moon = the moment when all of the moon;s illuminated half is visible from the earth.Waning gibbous = about 7 days; visible portion shrinking from all to half of the moon's diskLast quarter = the moment when half of the moon's disk is visibleWaning Crescent = about 7 days; visible portion shrinking from half of the moon's disk to zero


When more than a quarter of the moon is visible and the visible portion is becoming smaller as the moon moves toward the third quarter what is the moon phase?

A waning cresent.


What is the change called when the moon phases go from the full moon to the new moon?

A decrease in the illuminated portion of the Moon is called waning. When the illuminated portion is increasing, it is called waxing.


What moon phase Is more than a quarter of the moon is visible and the visible portion is becoming smaller as the moon moves towards the third quarter phase?

A waning cresent.


More than a quarter of the moon is visible and the visible portion is becoming smaller as the moon moves toward the third quarter phase?

Waning gibbous


What is the name used to describe the side of the moon that is not visible?

Typically, the Dark Side of the Moon


What is the term for the lit shape of the moon?

The general term for the visible lit part of the moon is "the phase of the moon." The visible lit portion can have a crescent shape, a gibbous shape or a "half-moon" (half circle) shape.


What describes an increase in the visible light portion of the moon?

During the two-weeks' period when the illuminated portion of the moon is increasing from night to night as seen from the earth, we say that the moon is in its "waxing" phases.


Does the moon have 8 phases?

There are 8 "named" phases of the Moon, representing the portion of its sunlit surface that is visible from Earth. (Whether the progression is from right to left, or left to right, depends on whether you are north or south of the Equator) New moon (Not visible or very barely visible) Waxing Crescent moon (1-49% visible) First Quarter moon (50% visible) Waxing gibbous moon (51-99% visible) Full Moon (Fully visible) Waning gibbous Moon (51-99% visible, opposite side of face from Waxing) Last Quarter Moon (50% visible, opposite half from that visible on First Quarter) Waning Crescent Moon (1-49% visible)


When visible portion of the moon is increasing the moon is?

Getting larger is WAXING. Getting smaller is WANING..