Channel maps of the ¹²CO J = 1−0 and J = 2−1 line emission toward IRAS 21282+5050 (in contours) at the LSR velocities (units of km s^-1) specified in the top-left corner of each panel. No primary beam attenuation correction is applied. In the background, in grey scale, the optical image obtained by (Sahai et al. 2007a) is shown for comparison. (Top) CO J = 1−0: contours are plotted at 10, 20, and 40σ, and from there every 25σ, where σ = 9.8 mJy beam^-1. In the panels marked with c in the bottom-left corner an additional contour is plotted at 4σ. Equivalent negative contours are plotted with dashed lines. The last panel presents the continuum emission with a first contour and contour spacing of 3σ, where σ = 0.6 mJy beam^-1. The synthesized beam, plotted in the bottom-right corner of last panels, is in size, with PA = 75°. (Bottom) CO J = 2−1: contours are plotted at 18, 36, and 54σ, and from there every 36σ, where σ = 22 mJy beam^-1. In the panels marked with c in the bottom-left corner an additional contour is plotted at 4σ. Equivalent negative contours are plotted with dashed lines. The last panel presents the continuum emission with a first contour and contour spacing of 3σ, where σ = 1.2 mJy beam^-1. The synthesized beam, plotted in the bottom-right corner of last panels, is in size, with PA = 61°. The primary beams are plotted at half power in dotted lines in the last panels of the channel maps. The central coordinates are RA 21:29:58.50, Dec 51:04:00.5 (J2000).