Vesto Slipher was a male Muun field analyst working for the InterGalactic Banking Clan, active around 33 BBY. He met his demise at Cog Hive Seven when Maul manipulated a CLL-8 binary load lifter to fatally sever Slipher's neck.
Joe Schreiber included Vesto Slipher in his 2014 novel, Maul: Lockdown. The character's moniker is the same as that of a real American astronomer.