F3V There are no F3V dagger types, but HD 26015 should be considered one Mean B-V for F3V stars in HIP (mostly Houk types) is B-V=0.417 Morgan65 lists 46 Tau (HD 26690) as its F3V standard, and classified two Hyads as F3V: HD 26015 & HD 26911. Garrison72 uses 46 Tau as their F3IV-V standard. Cowley74 uses 46 Tau and Zet Ser as their F3V standard. Cowley76 uses HR 1279 = HD 26015 as their F3V standard. Skiff08 flags two stars as F3V MK standards: HD 26911 (MK78) & HD 26015 (MK78), both of which were the Hyads classified by Morgan65. Gray01/03/06 lists 14 nearby F3V dwarfs. Median colors: (F3V) = 0.375 (+-0.007 sem +-0.021 stdev; N=14) (F3V) = 0.434 (+-0.006 sem +-0.022 stdev; N=14) # No standard Corbally86 does not list a F3V standard. # best standard HD 26015 = HR 1279 = HIP 19261 = Cl Melotte 25 11 (Hyad) F3V: Morgan65,MK73,MorganAbt73,Cowley76(stan),MK78,Jaschek78,Abt81,Keenan85,Garcia89,Gray89,Gray01,GrayNstars F2: Wilson48 F5V: Adams35 F0: Cannon No Houk type B-V(HIP)=0.397, Vmag=6.02, Mv=2.66, delMv=-0.47, par=21.3+-1.1 mas # Weak Standards HD 26911 = 48 Tau = HIP 19877 = HR 1319 = Cl Melotte 25 20 (Hyad) F3V: Morgan65,Garcia89(MK78) F5V: Jaschek64,Jaschek78(Eggen50),Cannon F6V: Cowley76 F6III: Harlan69 F2V: Adams35 No Houk type. Types varied F2-F6 pre-1970. B-V(HIP)=0.400, Vmag=6.31, Mv=3.07, delMv=-0.08, par=22.5+-0.9 mas HD 26690 = 46 Tau = HR 1309 = HIP 19719 F3V: JM53,Slettebak55,Jaschek64(all),Morgan65,Cowley74(stan) F3IV/V: Houk F3IV-V: Garrison72(stan) F2V: Christy69,Abt81 F4V: Barry70 F0: Cannon Varies F0-F4 in literature. B-V(HIP)=0.366 V=5.29 Mv=2.45, delMv=-0.49, par=27.0+-1.0 mas Morgan65 calls 46 Tau the F3V "Fundamental Classification Standard" note that the HD type for HD26015 is F0! Zet Ser F3V: Cowley74(stan)