Increase of maximum detectable distance with planetary emission temperature for an Earth-sized planet orbiting at 1 AU from a Sun-like star, after 10 hours of integration time. The gray area corresponds to a S/N value below seven (not detected) while the white is above seven (detected). Several prominent young stellar associations are plotted as horizontal lines at their respective distances. Top: near groups from Table 3. Bottom: far groups from Table 3.