Milky Way Galaxy
O.o!!
http://www.mpe.mpg.de/ir/GC/index.php
http://www.mpe.mpg.de/ir/GC/index.php
http://en.wikipedia.org/wiki/Supermassive_black_holeWithin few light years we find here ten thousands of stars forming a dense cluster, and the geometric centre of our Galaxy harbours a supermassive black hole with around 3.6 million solar masses. Due to its relative proximity of around 8 kiloparsecs, the Galactic Centre is a perfect laboratory to examine the physical processes in a galactic nucleus.
http://en.wikipedia.org/wiki/Milky_Way#Galactic_centerA supermassive black hole is a black hole with a mass of an order of magnitude between 10^5 and 10^10 solar masses. Most, if not all galaxies, including the Milky Way, contain supermassive black holes at their centers.
O.OThe galactic center harbors a compact object of very large mass (named Sagittarius A*), strongly suspected to be a supermassive black hole. Most galaxies are believed to have a supermassive black hole at their center.