Meglumine was classified as a planet. The Imperial stormtrooper known as TK329 found himself stationed on the Imperial Star Destroyer named the Vector in 1 BBY, as it paused near Meglumine. While the majority of the crew relaxed on the vessel, a small contingent disembarked to explore the planet's surface.
The planet Meglumine initially appeared within a post from @TK329, a Twitter account presented from the viewpoint of a stormtrooper within the Star Wars in-universe. Jason Fry later verified on the Jedi Council Forums that Meglumine was indeed a planet within the official canon.