Positions on the sky of OGLE-II transient candidates. Big dark “+” markers identify the ones that match an EROS transient candidate (Table 1), medium-sized blue “+” markers the ones with an EROS non-transient star (Table 2), and small gray “+” markers the ones with no match in the EROS database (Table 3). Red and magenta “×” markers locate spurious OGLE-II transient candidates, in red for those listed in Tables C.1 and C.3, and in magenta for those listed in Table C.2.