B9V Garrison67 & Cowley69 used Alf Del as their B9V standard. GarrisonGray94 used Ome For A as their B9Va low-vsini standard, and HR 2328 as their high-vsini (B9Van) standard. Cowley72 used Del Crv and Alf Peg as their B9V standards. Garrison79 used HD 141774 and HD 147012 as their B9V standards. MK43 lists Alf Peg as their B9V standard. HD 141774 has been ubiquitously classified as B9V (and B9 by Cannon) and might be considered the standard with best pedigree (agreement among authors). # No Standard Houk, Keenan85, and GrayAtlas do not list a B9V standard Skiff08 did not flag any stars as B9V standards. # Candidate Standard? HD 141774 B9V: Cannon(B9),Bertiau58,Jaschek64(both),Slettebak68,Jaschek78(Garrison67),Garrison79(stan),Houk88 Remarkably, *every* published type for this star is B9 subtype, but Garrison79 is the only one to mention it as a standard. It is sometimes mentioned in Upper Sco literature, but its proper motion (pm= -4,-6 mas/yr) is deviant for Sco-Cen/Upper Sco. # Acceptable Standards? HD 16046 = Ome For A = HR 749 = ADS 1954A B9V: Murphy69,Houk82,Corbally84,GrayGarrison(B9Va;stan) B9: Cannon B9.5V: Jaschek78(Levato75) B9.5IV: Abt85 A0III: Lutz77 Kennedy83 lists A as B9V, B9.5V and A0III. Companion B is A-star at 11" separation (varies from A3V-A8V) Not a particularly strong pedigree. Mostly B9V, but some B9.5/A0. HD 45380 = HR 2328 B9Van: GrayGarrison94(stan) B9V: Houk99 B9.5V: Abt95 A0Vn: Jaschek78(Cowley69),Kennedy83(Cowley69) A0: Cannon 21" binary. Vsini=200 km/s. Vmag = 6.3. Not a particular strong pedigree. # Weak Standard HD 196867 = Alf Del = 9 Del = HR 7906 = HIP 101958 B9V: Chalong52,JM53,Osawa59,Jaschek64(most),Garrison67(stan),Cowley69(stan),Jaschek78(JM53) B9IV-V: Cowley72(stan) B9IV: MK73,Garcia89,GarrisonGray94(stan) B8: Cannon M91: V=3.771+-0.004, B-V=-0.057+-0.005, U-B=-0.204+-0.013 =>QBV=> (B-V)o=-0.071, (U-B)o=-0.217, E(B-V)=0.014, T=11065 It appears that this is now a B9IV according to MK73,GarrisonGray94 The good news is that there is strong consensus on the B9 type. dMv=-1.4 mag -- i.e. more evolved than MS. HD 108767 = Del CrV = HR 4757 B9V: MK43,Jaschek64(all),Murphy69,Cowley72(stan) B9Vn: Cowley69 B9.5V: Abt81,Gahm83,Houk88,Mora01 B9.5IV-n: GrayGarrison87 A0: Cannon M91: V=2.948+-0.010, B-V=-0.046+-0.005, U-B=-0.079+-0.017 =>QBV=> (B-V)o=-0.036, (U-B)o=-0.080, E(B-V)=-0.010, T=9940 delta(V)=5.5 binary Consensus on B9 through ~1970, but then ~B9.5 since. HD 218045 = Alf Peg = HR 8781 B9V: MK43,Jaschek64(most),Cowley72(stan) B9III: Osawa59,Jaschek78(Slettebak54),Kennedy83(Palmer68) A0: Cannon A0IV: Abt95 A0III-IV: GrayGarrison87 MK43 listed Alf Peg as their B9V standard. M91: V=2.483+-0.008, B-V=-0.040+-0.005, U-B=-0.038+-0.029 =>QBV=> (B-V)o=-0.026, (U-B)o=-0.037, E(B-V)=-0.014, T=9643 Looks like its an evolved either B9 or A0. HD 147012 B9V: Jaschek78(Garrison67),Garrison79(stan) B9IV: Houk88 A0: Cannon J1620-2536. Mentioned in some Upper Sco/Sco-Cen literature, however pm=+10,-26 (deviant from Upper Sco), and it seems to faint to be a late-B ~5-15 Myr-old star at the distance of Sco-Cen. Not a de Zeeuw/HIP member of Upper Sco. Only Garrison has classified as B9V. HD 36998 = BD-04_1180 (J0535-0435) B9V: Abt68,Houk99 B9Vn: AbtLevato77 B9: Bernacca67 B8/9: Sharpless52 A0: Parenago54 Abt68 called it a "B9V" standard. Later called "B9Vn" in Abt77.