Channel maps of IRAS 23304+6147 in CO J = 2 − 1 emission. The contour levels are individually set for each channel by creating ten equally spaced contour lines between the maximum and minimum intensities of that channel. The crosses mark the position of the phase center. The LSR velocities are indicated in each panel. The systemic velocity of this object is –16.1 km s⁻¹. The white ellipse at the bottom-left corner represents the synthesized beam, with a size of 0.52″ × 0.42″ and a PA of 23°.