At certain times we see both the sunlit portion and the shadowed portion -- and that creates the various moon phase shapes we are all familiar with. Also note ... An easy way to remember and understand those "between" lunar phase names is by breaking out and defining 4 words: crescent, gibbous, waxing, and waning. read more
Sunlight is shown coming in from the right. The earth, of course, is at the center of the diagram. The moon is shown at 8 key stages during its revolution around the earth. The moon phase name is shown alongside the image. The dotted line from the earth to the moon represents your line of sight when looking at the moon. read more
Starting with a New moon, the phases are Waxing Crescent First Quarter Waxing Gibbous Full Waning Gibbous Third Quarter Waning Crescent And back to New I always remember "Wax On", as in, turning the moon on. read more
Different full moon names can be found among the Chinese, Celtic, Old English, and New Guinea cultures, to name a few. In addition, Native American tribes often used moon phases and cycles to keep track of the seasons and gave a unique name to each recurring full moon. read more