Fig. 1.
Distribution of input stars in the X–Y plane (±100 pc in Z). The sun is at (–8000, 0) and the Galactic centre is at (0,0). Top panel: giant stars and the bottom panel shows red clump stars. The colour represents their l.o.s. K-band extinction. Most giants can probe out to about 7 kpc, while red clump stars probe to about 5 kpc on average.
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