Starbuck describes The Colony as being located in the accretion disk of a naked singularity. Naked singularities don't HAVE accretion disks; it's part of what makes them naked. A naked singularity is a theoretical kind of black hole (one which probably does not exist), wherein the rate of spin and the amount of charge on the collapsed star sufficiently counter the effects of gravitation so that not only is the volume of the star reduced to zero, but the radius of the outer event horizon is also reduced to zero. The result is a black hole with no net gravitational effect (unless one physically contacts it). No net gravitation means that no material is drawn to it - no accretion disk.
At about the 37 minute point Laura Roslin is talking on the phone during a flashback and the Panasonic name can be seen on the bottom of the handset.