On-sky distribution of our LAMOST DR6 hot-star candidates in Galactic coordinates (l, b). The map is centered on the Galactic anticenter (l = 180°, b = 0°). The thick line delineates the celestial equator (Dec = 0°), and lines of constant declination, Dec = ±30° and Dec = ±60°, are also shown. Colors indicate the logarithmic number of stars in each (l, b) cell of 0.2° × 0.2°. The distribution reflects both the LAMOST survey area and the candidate stars’ concentration to the Galactic plane, which is expected for young stars.