Spatial distributions of three most distant star-forming regions with precise distance measurements projected onto the Galactic plane. The sources shown in clockwise order are G040.96+02.48 (this work), G034.84−00.95 (N. Sakai et al. 2023), and G007.47+0.06 (A. Sanna et al. 2017). The yellow arrow shows the peculiar motion vector of star-forming region G040.96+02.48. A velocity scale of 50 km s⁻¹ is indicated in the plot. The background is a new artist’s impression of the Milky Way credited by Xing-Wu Zheng & Mark Reid BeSSeL/NJU/CFA. The Sun’s position is at (0, 8.15) kpc, while the Galactic Center is at (0.0, 0.0) kpc.