Observed hfs components of the N = 1 → 0, 3 → 2, 5 → 4 rotational transitions of C₂H toward Her 36 at RA 18^h03^m40^s.3; Dec −24°22′43′′ (J2000). For the N = 1 → 0 transition allsix hfs are fully resolved, while for the N = 3 → 2 and 5 → 4 transitions, some hfs lines overlap with each other. The N = 5 → 4 shows an additional spectrally resolved velocity component (2–8 km s⁻¹) compared to other transitions. Only the detected lines are indicated by their quantum numbers J and F.