One might be forgiven for thinking that you see the Space Cruiser Yamato behind the third member of Matt and Tali's troika, but that's actually the TCS (Temporal Corps Ship) Musashi, the Yamato's stunt double. In the orignal series, whenever the Yamato got the living bejesus blown out of it, it was actually the Musashi taking the hits. When filming finished, the Corps bought the hulk, refurbished it and put it into multiversal patrol service. Low's been skipper for years, and it's definitely HER ship...

Low and compositing (c) me. Drawing by TechnicolorPie Backdrop from http://www.bandaionline.com/soul-of-chogokin-gx-86-space-battleship-yamato-2202/