Position of the star in the Toomre diagram for x = 0.8. The quantity V is the velocity component in the direction of Galactic rotation, U is in the direction towards the Galactic center, and W is perpendicular to the Galactic plane. The star, the Sun, and the local standard of rest (LSR) are marked by a red cross with 1σ error bars, a yellow circled dot (⊙), and a black plus sign (+), respectively. The dashed gray circles centered around the LSR represent boundaries for thin (radius of 85 km s⁻¹) and thick (radius of 180 km s⁻¹) disks following Fuhrmann (2004). A reference sample of 75 binaries that host extremely low-mass He WDs is shown as blue data points, with light blue marking objects that orbit in the Galactic disk (Brown et al. 2020).