... observations

The broadband 1.2 mm and 0.85 mm observations contain a substantial amount of CO emission.

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... peak

RA 09$^{\rm h}$51$^{\rm m}$43.5$^{\rm s}$, Dec 69 $\hbox {$^\circ $ }$55'0.7'' [1950] (Dietz et al. 1986).

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... direction

Actually, Figs. 1 and 10 in Lynds & Sandage (1963) give the impression that the visual extinction is larger at the southern side of the disk.

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