Mercator projections of Huygens’s view at different altitudes

These images are Mercator projections of Huygens’s view of Titan, taken at 4 different altitudes (a Mercator projection is kind of map which keeps the cardinal directions intact – they cross at right angles – but distort surface areas). The images was taken during descent by the Descent Imager/Spectral Radiometer (DISR) on board the probe, on 14 January 2005.