UGC 6742 (NGC 3870) is poorly resolved and the line-profiles suffer from
beam-smearing. As a result, the method described in Sect. 3.5 to derive the
velocity field is inadequate and fails to recover the projected rotational
velocities of the gas.
= MRK 0186
Astr. Ap., 22, 281, 1973.
Small blue condensation in north-following part of the envelope