Alison (galaxy)

Alison was a galaxy the Tenth Doctor named. He did this some time between the events of the Bowie Base One incident and when he travelled to the Ood Sphere. The Doctor referenced this in a list of things that he told Ood Sigma he had done. (DW: The End of Time) He likely named it after a woman and/or companion that he had and after losing her named the galaxy after her to honour her.