Map of the colour excess E(B − V) from Schlegel et al. 1998. The map is centred at l ≈ 174°, b = −37° and covers roughly 40° × 15°; a grid in galactic coordinates has been superposed. The minimum and maximum values in the map are 0.03 and 2.09 mag, respectively. The 3 principal features in this map from left to right are LDN 1569 (MBM 18), MBM 16 slightly to the right of the centre in the map, and MBM 12 (LDN 1453/4/7/8). MBM 12 is a known star-forming region with a young T-association that includes about a dozen objects, MBM 16 is not known to be forming stars, and LDN 1569 (MBM 18) contains the possible pre-main-sequence stars discussed in the text.
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