G1.5V Garrison94 does not list a G1.5V anchor standard, and MK73 does not list a G1.5V dagger standard. Keenan80 standard: HD 10307 - G1.5V Keenan83 standard: HD 10307 - G1.5V lam Aur (=HD 34411) - G1.5IV-V Fe-1 16 Cyg A (=HD 186508= "16 Cyg prec") - G1.5Vb Keenan85 standard: HD 10307 - G1.5V HD 20619 - G1.5V lam Aur (=HD 34411) - G1.5IV-V Fe-1 35 Leo (=HD 89010) - G1.5IV-V 16 Cyg A (=HD 186408= "16 Cyg prec") - G1.5Vb Keenan88 standards: 16 Cyg A (=HD 186508= "16 Cyg prec") - G1.5Vb HD 10307 - G1.5V HD 53705 - G1.5V 35 Leo (=HD 89010) - G1.5IV-V Keenan89 standard: HD 10307 - G1.5V 16 Cyg A (=HD 186408) - G1.5Vb HD 20619 - G1.5V lam Aur (=HD 34411) - G1.5IV-V Fe-1 HD 53705 - G1.5V 35 Leo (=HD 89010) - G1.5IV-V Keenan99 standards: HD 20619 - G1.5V HD 53705 - G1.5V GrayNstars standard: 16 Cyg A - G1.5V Teff(G1.5V) = 5806 K ; Teff from smoothed SpT(Teff) trend Teff(G1.5V) = 5813 K ; stan. 16 Cyg A (Ramirez11) Teff(G1.5V) = 5826 K ; halfway between G2V(5772K,Sun) and G1V(5880K adopted) Teff(G1.5V) = 5839+-42 K ; stan. 16 Cyg A (White13, CHARA) => adopt Teff(G1.5V) = 5830K (logTeff= 3.866) [updated 10/27/2017] BCv(G1.5V) = -0.071 [last updated 8/3/2018, on scale where BCv(5772K)=-0.08] # Standards HD 186408 = 16 Cyg A = HR 7503 = "16 Cyg prec." *G1.5Vb: Keenan89 G1.5V: Keenan83,Keenan85,Keenan88,GrayNstars,Gray01,Gray03 G2V: JM53 G2Vab: Barry70 G2.5V: Stebbins57 G3V: Adams35,Opolski57,Keenan80 Has M4.5V companion C or Ab 3.2" away (TRN4; 7 mag fainter), and of course 16 Cyg B 40" away. PASTEL: = 5793K(N=40). =4.28(N=29), <[Fe/H]>=0.09(N=30). Brewer16 numbers are near middle of published values here: 5778K, logg=4.28, [Fe/H]=0.09. Age = 7.0+-0.3 Gyr(Judge17). HD 10307 = HR 483 *G1.5V: Keenan85,Keenan88 HD 20619 G1.5V: Keenan85,Keenan99 HD 53705 = HR 2667 G1.5V: Keenan99 HD 34411 G1.5IV-V Fe-1: Keenan85G HD 89010 G1.5IV-V: Keenan85