An animation showing the complete cycle of Moon phases. Credit: Wikipedia.
29.5 - the approximate duration of the full lunar month, in days (29 days, 12 hours, 43 minutes and 11.6 seconds to be exact).
New Moon - Shrouded.
Waxing Crescent - The crescent getting larger.
First Quarter - When half the Moon can be seen.
Waxing Gibbous phase - More of the Moon can be seen.
Full Moon - All of the Moon can be seen.
Waning Gibbous phase - Moon getting smaller.
Last Quarter - Half the Moon is now seen.
Waning Crescent - Less and less of the Moon surface is seen, until the return to a New Moon.
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