Segments of the β Pic and KIC 3542116 light curves around the observed transit events along with the best fitted model profiles: a – β Pic(sector 6) and comet C/2006 S3 (LONEOS) at r = 5.5au; b – β Pic(sector 5) and comet C/1995 O1 (Hale–Bopp) at r =1.0au; c − KIC 3542116 (sector 1) and comet C/1995 O1 (Hale–Bopp) at r = 1.0 au; d − KIC 3542116 (sector 1) and comet C/1995 O1 (Hale–Bopp) at r = 1.0 au; e − KIC 3542116 (sector 1) and comet C/1995 O1 (Hale–Bopp) at r =1.0 au; f − KIC 3542116 (sector 8) and comet 1P Halley at r = 0.6au; g − KIC 3542116 (sector 8) and comet 1P Halley at r = 0.6 au; h − KIC 3542116 (sector 12) and comet 1P Halley at r = 0.6 au; i − KIC 3542116 (sector 10) and comet C/2006 S3 (LONEOS) at r = 5.5 au; j − KIC 3542116 (sector 10) and comet C/1995 O1 (Hale–Bopp) at r =1.0 au. Upper panels: blue points display the 30 min binned β Pic normalized flux (a and b) and the normalized flux of KIC 3542116 (d–j). The red line shows the best-fit model, obtained with the 2D simulation images of respective comets (see Table 3). Lower panels: residuals from the fit. The dashed red lines indicate the 3σ limit.