Cepheus A Bubble in Molecular Hydrogen and Atomic Lines

A color composite of HH 168, with the continuum-subtracted H_2 image from Hartigan etal (1996) in red, the [S II] HST image in green, and the sum of the H-alpha and [O III] HST images in blue. The offset of the H_2 from the optical emission is clear in this figure.