but doesn't it get lonely riding up there to the sun?

The Doctor's (hereafter to be referred to as Ten to avoid confusion) TARDIS materialises into view in a small niche on Cassiopeia V, out of sight of any passers-by - not that he doesn't trust the perception filter, but he'd rather not take any chances.

Stepping out of the TARDIS, he glances around for another one, his normally carefree face sporting a worried expression. It's time to put an end to this madness.