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Shaded discs showing how much of the moon is lit.
Also known as: Moon phase symbols, Waxing crescent symbol
Lunar phase symbols show the lit fraction as a shaded disc. Which side is lit depends on the hemisphere of the observer, so a printed almanac's phase symbols are correct for one hemisphere and mirrored for the other.
Show the illuminated fraction of the moon as a disc shaded on one side.
Contexts: Technical drawing, Maps
Are drawn lit on the side that faces the sun from the observer's hemisphere, so northern and southern hemisphere almanacs mirror one another.
Contexts: Technical drawing, Maps
Distinguish waxing from waning by which limb is lit, a distinction the shaded fraction alone does not carry.
Contexts: Technical drawing, Maps
A circle with part of its area filled and part left open, the boundary between them a curve or a straight line.