Left panel: Lagoon Nebula, Messier object 8 (M8), or NGC 6523 in the constellation of Sagittarius, as seen by the Kitt Peak 4 m Mayall telescope in 1973. North is up, east to left. Credits to National Optical Astronomy Observatory/Association of Universities for Research in Astronomy/National Science Foundation Copyright WIYN Consortium, Inc., all rights reserved. Right panel: WISE 3.4 μm image of the M8 region around Her 36 (denoted with a star) investigated in this paper. The contour levels are 10% to 100% in steps of 10% of the peak emission ~4000 data number. The 1.5 pc indicated in the lower left correspond to 4′.