A new moon may appear once or twice each month.
Before there were calendars in everyone's possesion, people referred to the phases of the moon. Each time the moon goes from First quarter, full, last quarter, back to new moon, is a "moon". This process takes about a month. So saying "many moons" just means "many months". I guess people can still say it, but it was much more common when people used the phases of the moon to signify a month instead of looking at a calendar.
28 days
That hasn't been decided because shes dose not appear in new moon, in the book it said that she only appeared in Breaking Dawn the last book. So im expecting her to only be in that one.
One there is the first one twilight then there is twilight new moon then twilight eclipse then twilight breaking dawn.
The New Moon always occurs very close to the moon's "new moon" phase.
Its fairly rare, but sometimes a second new moon may appear in a month, called a 'blue moon'.
The New Moon occurs 29.53 days after the last New Moon.
At least once a month
Roughly half a month
a month on the lunar calender About a month
Usually, once.
The new moon occurs when the moon is directly between the Earth and the Sun, making it appear completely dark in the night sky. Its position in the sky changes throughout the month as it orbits the Earth.
In August, 2011, New Moon is the night of August 28th. Note that "New Moon" visually doesn't appear - there is no moon to seeon the night of "new moon".
It takes 28 Earth days. It is a period called a 'Lunar month'.
A month
is a lunar month a new moon
every month duuh