Waxing gibbous
If tonight the phase of the moon is full when it rises what will be the phase 4 days from now is in the waning gibbous stage.
That is the first quarter moon which looks like a half moon.
waxing gibbous
No. There is a full moon every 29.53 days. This is the synodic period of the moon, based on the length of time it takes to go from on phase to the next repetition of the same phase.
The phase is almost full, but not quite. The period of phases is about 29 days, so it takes 14.5 days for the Moon's phase to change from 'New' to 'Full'. If New Moon took place at some time on March 2, then Full Moon would occur on March 16, at about 12 hours later in that day.
The "waning gibbous" phase lasts from 2 days after the full to 6 days after the full.
If tonight the phase of the moon is full when it rises what will be the phase 4 days from now is in the waning gibbous stage.
That is the first quarter moon which looks like a half moon.
At 28 days after a full moon, the moon would be almost but not quite full again. The complete sequence of phases repeats with a period of 29.53 days.
The moon in the days before and after a full moon appear as a gibbous moon. A gibbous moon is anything between a full moon and a half moon.
29.531 days (rounded)
1/2 of 29.53 days = 14.77 days (rounded)
waxing gibbous
waxing gibbous
waxing gibbous
No. There is a full moon every 29.53 days. This is the synodic period of the moon, based on the length of time it takes to go from on phase to the next repetition of the same phase.
The phase is almost full, but not quite. The period of phases is about 29 days, so it takes 14.5 days for the Moon's phase to change from 'New' to 'Full'. If New Moon took place at some time on March 2, then Full Moon would occur on March 16, at about 12 hours later in that day.