WFCAM JHH₂ colour-composite image (J-blue, H-green, H₂-red) in a 1′    ×    1′ field containing “CI”. The top-left inset shows J, H and K images of the central 12′′  ×  18′′ field (enclosed in the dashed box) at a higher contrast, with circles showing the locations of the two bright sources derived from the K-band image; a dotted yellow line is drawn on the J-band image along the extinciton lane to guide the eyes. The top-right inset shows a JHK colour composite of the same region (J-blue, H-green, K-red), revealing the bright point sources embedded in the nebulosity.