Fig. 2

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Comparison between the CFHT residual H2 and Brγ images of Hb 12. North is up and east is to the left. The core region of this nebula is saturated. The black crossdenotes the position of the central star. The proper motion direction is marked with red arrow. The intensities are in a logarithmic scale and the scale bars shown at the bottom are given in units of 10−16 erg cm−2 s−1.
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