Friday 13 March 2009 was two days after full moon, so it is now waning.
It was a waning gibbous moon yesterday.
The moon was not full on March 20 2012, it was a waning crescent
Lobed like an egg, with the lobe facing the Earth due to tidal forces. Surely you didn't mean what phase was it yesterday...
A moon that gets smaller after the full moon is called a waning moon. It goes through phases from full moon to new moon.
waning moon
Yesterday's moon phase would have been a waning crescent, with only a small sliver of the moon visible in the sky. It would have appeared as a thin curved shape in the early morning hours before sunrise.
The Moon appears to be waxing when it is transitioning from a new moon to a full moon, and waning when transitioning from a full moon to a new moon. Without specific information on the current lunar phase, it's not possible to determine if the Moon is waxing or waning at this moment.
The moon is waxing from the new moon to the full moon and waning from the full moon to the new moon. Remember this: when the right is bright it's waxing and when the left is bright it is waning
Waning Gibbous Moon
Waning.
It is "waning gibbous".
No. There is a waning gibbous moon right after the full moon.