New moon

Definition and stakes

James Baikie,  Through the Telescope

“ No one can fail to notice the beautiful set of phases through which the moon passes every month. A little after the almanac has announced 'new moon,' she begins to appear as a thin crescent low down in the West, and setting shortly after the sun. Night by night we can watch her moving eastward among the stars, and showing more and more of her illuminated surface, until at first quarter half of her disc is bright. ”
Source: Gutenberg

Florence M. Grimm,  Astronomical Lore in Chaucer

“ When the moon is between the earth and the sun she is said to be in conjunction, and is invisible to us for a few nights. This is the phase called new moon. As she emerges from conjunction we see the moon as a delicate crescent in the west just after sunset and she soon sets below the horizon. Half of the moon’s surface is illuminated, but we can see only a slender edge with the horns turned away from the sun. ”
Source: Gutenberg

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