plot should show 100 Myr (= 8 for log age value) isochrone, and evolutionary track for 1 solar mass star for ages from 1 to 8 Gigayears (= 9 - 9.75 in log age).
Use same x and y range as cluster plots so that everything is consistent; use different colors (and linestyles?) for the isochrone vs. evolutionary track.
plot should show 100 Myr (= 8 for log age value) isochrone, and evolutionary track for 1 solar mass star for ages from 1 to 8 Gigayears (= 9 - 9.75 in log age).
Use same x and y range as cluster plots so that everything is consistent; use different colors (and linestyles?) for the isochrone vs. evolutionary track.