Same format as Fig. 14, only that the data are now binned in guiding-center radius, R_guide, rather than Galactocentric distance, to mitigate the effect of stellar mixing by “blurring”. Again, the colour-code represents the age, while the size and transparency now encode the uncertainty in stellar age and guiding-center radius. (If a star has a highly uncertain guiding radius – i.e. an R_guide PDF which extends over multiple R bins – it will appear as a faint dot in multiple panels of this figure.)