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Fig. 5

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Map of the fields we obtained CO spectra in. Left: large region, 4.4 × 4.4 degrees, surrounding the emission nebula S 171. The arrow points at the position of the central cluster. The northern arc of bright nebulosity is NGC 7822. In this panel the more peripheral areas observed for 13CO emission are marked and labelled. The circles (Enorth and Esouth) mark observations at selected positions along two dusty striations that extend to the east from the centre. The dashed box marks the central region shown in the right panel. Right: image spanning 1.9 × 1.2 degrees. The core of the stellar cluster is inside the dashed box. The position of an elephant trunk, called the ‘Dancing Queen’ is marked with a black circle. North is up and east to the left in both images, which are from the red Deep Sky Survey.

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