Fig. 10. The ([FORMULA]) diagram for LPVs near the Galactic Center and in Baade's Window and the LMC. The Galactic Center objects are shown as symbols whose shapes have the same meaning as in Fig. 6: the filled symbols are LPVs with (K-L)[FORMULA] [FORMULA] 1.3. The Baade's Window objects are shown as crosses. The line represents optically visible LPVs in the LMC from Hughes & Wood (1990) while the plus signs represent LMC OH/IR stars from Wood et al. (1992).