starlightclara:

Where I’ve always been going. Home, the long way round.

Kasterborous (Cas-TER-bor-os) was the constellation in which the planet Gallifrey was located.
The constellation was named by the Minyans.

As no Time Lord was allowed to know Gallifrey's personal future,
TARDISes were prevented from entering Kasterborous after a certain date.(x)

URL Graphic for kasterborus (Want one ?)