The New Moon, First Quarter, Full Moon, and Third Quarter are moments in time,
with no duration.
The Waxing and Waning Crescents, and the Waxing and Waning Gibbous phases,
each last roughly a week.
You might well argue that each day is a different "phase". But we generally think of four separate "phases of the Moon", each of six days, with sharp one-day divisions between them.
New Moon
Waxing Crescent
First Quarter
Waxing Gibbous
Full Moon
Waning Gibbous
Third Quarter
Waning Crescent
We probably don't see the 3rd Quarter or Waning Crescent, because they are visible between midnight and dawn.
The waxing crescent, waxing gibbous, waning gibbous, and waning crescent
each last roughly a week. (Nominally 7.38 days)
The New Moon, First Quarter, Full Moon and Third Quarter are technically single
moments in time, that mark the beginning or end of the 7-day phases.
My closest answer is 3.5 days but I'm not exactly sure.
8
The Moons Revolution around earth is about 30 days. So if you divide that by 8 (because there are 8 phases) you would get about 3.75 days in between each phase. That is New, Cresent, First Quarter, Gibbous, Full, Gibbous, Third Quarter, Cresent and then once it gets back to New Moon again, its starts over again.
It's about 354 days, which is about 11 days less than a solar year.
24 years times 365.24 days in a year / 29.53 days in a lunar synodic month = 296.84 lunar synodic months. Sorry, I don't know how many lunar synodic months there are in a lunar year. Someone else please finish the answer.
29.531 days (rounded)
A full lunar cycle is 29 1/2 days, on average.
There are slight variations through a year. The average is 29.531 days.
It lasts about 6 days, but it really depends on the season.
One lunar day equals 28 earth days
There are 29.5 days in a lunar month.
Well, there are approximately 29.5 days in a lunar phase period, from new moon to new moon. So I would assume that there would be 29.5 days between each particular phase as well. But I am not 100% sure about that.
The Moons Revolution around earth is about 30 days. So if you divide that by 8 (because there are 8 phases) you would get about 3.75 days in between each phase. That is New, Cresent, First Quarter, Gibbous, Full, Gibbous, Third Quarter, Cresent and then once it gets back to New Moon again, its starts over again.
about 27.21222 days on average but not so sure
All but one. The cycle of phases of the Moon takes 29.5 days, so however you define the length of a lunar phase, you're missing one.
about 27.21222 days on average but not so sure
One lunar month, rounded to two decimal places, is equal to 27.32 days. Therefore, twelve lunar months are equal to 27.32 x 12 = 327.84 days.
The lunar day is about 29 earth-days long.
It takes ten lunar months for the pregnancy to go for delivery. That is forty weeks. The duration of the menstrual cycle is of one lunar month in most of the women. This duration is counted from the last menstrual period. It is counted for nine months and seven days ahead of last menstrual date on the calender.