Representation of the stellar disc, starspot positions, and transit chord for the three HAT-P-36 datasets containing spot anomalies: a) refers to the transit observed with the Cassini 1.52 m telescope on 2013 April 15, and b) and c) to those observed with the CA 1.23 m telescope on 2014 April 14 and 18, respectively. The grey scale of each starspot is related to its contrast (compare with values in Table 4).