How far is Sagittarius from the moon?

Sagittarius A* is approximatly 25 000 ly away from the Earth (Wikipedia, 22 May 2009, "Galactic Center"). The real point of interest in the center of the milky way is the Super massive black hole located there. This black hole is thought by some to be the cause of the "Doomsday" on December 21st, 2012. however, as a black hole can not expand at a speed faster than the speed of light, this is highly unlikely.