Notes. ⁽¹⁾ Spectral type and T_eff were estimated from Mg II 4482 Å/He I 4471 Å ratio; these measurements were only obtained for spectra for which the lines are not blended; ⁽²⁾ T_eff was estimated using the relation for spectral types from Humphreys & McElroy (1984, Table 2) (HM84) and Evans & Howarth (2003, Table 5) (EH03); and ⁽³⁾ T_eff was estimated from . Owing to the uncertainty in the reddening, the error is K for T_eff ≥ 9000 K and K for T_eff < 9000 K. The references are ⁽⁴⁾ Feast et al. (1960), ⁽⁵⁾ Butler (1972), ⁽⁶⁾ Dachs (1970), ⁽⁷⁾ Ardeberg & Maurice (1977), ⁽⁸⁾ Stahl et al. (1985), ⁽⁹⁾ Szeifert et al. (1993), ⁽¹⁰⁾ Mendoza (1970), and ⁽¹¹⁾ AAVSO. The other values are from this work.