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Fig. A.20

Nebula H 1-9 (PN G 355.9+03.6). The data are presented as in Fig. A.1. The radial profile is shown scaled by a factor of 100. The nebula is very compact and the model does not fit the radial distribution well, but the outer radius of the model closely aligns with the edge of the image, as seen in the figure.
This figure is made of several images, please see below:
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