Fig. 1.
Left: spatial coverage of the OMEGA2000, Chandra, and IRAC observations in the 3.6 μm image of the ON2 region. Right: RGB image (R = [8.0],G = [4.5],B = [3.6]) of the region that is covered by coordinate axes in the left panel, and showing the OMEGA2000 field of view in the same way. Green circles show the position and size of Berkeley 87 (dashed) and [DB2001] Cl05 according to Dias et al. (2014) and Dutra & Bica (2001), respectively. The Cygnus 2N region is marked as a yellow diamond.
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