The changing LOS illumination of the Starlink Gen2 constellation by latitude (λ) for a 24 hr period (midday to midday) on the December solstice above the (a) visible and (b) astronomical horizons. Plots are separated into all constellation layers A to I (top), VLEO layers A to D <450 km (middle), and traditional LEO layers E to I >450 km (bottom) and the local dawn/dusk points are superimposed and identified by the associated Sun angle key. Note the differing scale of (a) and (b) as shown by the respective colourbars.