 RE: Moon Phases??
full moon rises in the East right at dusk. A new moon is sitting on the western horizon at dusk, and sets with the sun. So the short answer is a new moon gives almost no light.
Each night the moon rises about an hour later than the previous night, so one day past full a nearly full moon rises an hour after sunset. One day before full, a nearly full moon rises about an hour before sunset.
One day past new, a tiny sliver will be in the western sky for about an hour before it sets. One day before new, a tiny sliver rises just before dawn, and sets just before sunset. (I may have mixed up “new moon” and “dark moon” here, but there’s only one day difference between the two, and virtually no difference between the light they give).
Also, the moon completes a cycle (from full to new, back to full) in about 30 days. Starting from a full moon, it wanes for two weeks, losing a sliver each night until it’s a new moon. Then for two weeks it gains a sliver each night and waxes back to a full moon.
So one week after a full moon, a half moon rises about 8 hours after sunset.
One week after a new moon, a half moon rises about 8 hours before sunset.
The above is a rough guide (I think I got it right). Obviously in the Northern Hemisphere the days aren’t 12 hours of light and 12 hours of dark, so there’s a big fudge factor involved. But if you have a calendar with full and new moons marked on it, you can assume the full moon rises at sunset, and mark each moon rise one hour later each day, with a half moon rising about midnight one week after full.
Hope this helps. chip.
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