A4III # No standards MK43, JM53, Cowley69, and Houk does not list a A4III standard. GrayGarrison89 do not list A4 standards of *any* luminosity class, but they do classify three stars as A4III (HD 92769, HD 192514, HD 219891). The most equatorial of these is 40 LMi (= HD 92769; J1043+2619; V=5.5; B-V=0.16, Mv=2.1, dMv=0.24) - but it is not above the main sequence. (J-H)(A4III) = 0.033 ; smoothed relation from giants in Skiff compnedium w/i 15 deg of NGP, 2MASS photometry AAA flags (H-Ks)(A4III) = 0.028 ; smoothed relation from giants in Skiff compnedium w/i 15 deg of NGP, 2MASS photometry AAA flags => adopt (J-H)(A4III) = 0.033 [updated 10/30/2020] => adopt (H-Ks)(A4III) = 0.028 [updated 10/30/2020] # Other Stars HD 178187 = HR 7250 = HIP 93845 (J1906+2415; V=5.8) A4III: Cowley69 A5III: 1978A&AS...35...75C A4IV: Abt95 A4V: Paunzen01 Pretty good agreement on A4 subtype, but not on luminosity class. In Indo-US spectral survey (Valdes04). Plx = 9.33+-0.35 mas (vanLeeuwen07), V=5.78 (HIP), B-V=0.104+-0.000 (HIP). If Av=0 (unclear), then Mv = 0.63+-0.08 mag. For this B-V, Mv(MS) = 1.60 (Wright05), so the star is 0.98 mag above the main sequence, so the star is clearly "evolved". A consensus estimate from the literature might be something like "A4III/IV".