Upper: H₂ 1−0 S(1) image of HH 54 from NTT/SofI observations (Giannini et al. 2006). The positioning of the slits adopted for VLT/VISIR and CRIRES observations is shown in blue and red. The beam sizes of Herschel H₂O (2₁₂−1₀₁) (magenta circle), CO (15−14) (green, Bjerkeli et al. 2014), and SEST CO (2−1) (black, Bjerkeli et al. 2009, 2011) are displayed. Offsets are relative to: α_J2000 = 12^h55^m503, δ_J2000 = − 76°56′23′′ (Bjerkeli et al. 2011). Lower: Spitzer/IRS H₂ 0−0 S(4) image of HH 54 (Neufeld et al. 2006). Symbols are the same as in the upper panel.