phases eclipses vocab Flashcards
New moon
the side of the moon facing the earth is not illumanated
Phases
Phases are caused by the motions of the moon around earth
waxing cresent
the moon is beggining to show
we say that it is waxing because every night it shows a little more
first quarter
During first quarter, 1/2 of the moon is visible for the first half of the evening, and then goes down, leaving the sky very dark.
Waxing Gibbous
When most of the Moon is visible we say it is a Gibbous Moon. Observers can see all but a little sliver of the moon. During this phase, the Moon remains in the sky most of the night.
Full Moon
When we can observe the entire face of the moon, we call it a Full Moon. A full moon will rise just as the evening begins, and will set about the time morning is ushered in.
Waning Gibbous
Like the Waxing Gibbous Moon, during this phase, we can see all but a sliver of the Moon. The difference is that instead of seeing more of the Moon each night, we begin to see less and less of the Moon each night. This is what the word “waning” means.
Last Quarter
During a Last Quarter Moon we can see exactly 1/2 of the Moon’s lighted surface.
Waning Crescent
Finally, during a Waning Crescent Moon, observers on Earth can only see a small sliver of the Moon, and only just before morning. Each night less of the Moon is visible for less time.