V1233 Tau = HD 27989 = BU 1185 = vB 58 Variable of BY Dra type, G4V BU 1185, P = 28y, a = 0.25", motion retrograde. Also SB Griffin et al. (1988). Malkov et al. (2012) derived masses of 2.01, 2.00, and 0.98 Msun, respectively. prob_member = 1 (Perryman+ 1998) ---------------------------------------------------------------------------------------------- 61 Tau = HD 27697 = Chr 262 = BUP 55 = vB 41 SB (P=530d)/Occ. bin./RG (K0III) -> poss. resolved (Mason et al. 2012) The primary is a long-period spectroscopic and occultation binary. Aa,Ab: If real, this pair could be the 530.1-d spectroscopic binary (Griffin 2012). If this additional component is confirmed, vB41 will be the second K0 giant binary that has been resolved in the Hyades. prob_member = 1 (Perryman+ 1998) ---------------------------------------------------------------------------------------------- 54 Tau = HD 27371 = BLM 1 = WDS 04198+1538 = vB 28 IB/SB/RG (G9.5IIIab) -> SB1 (ApJ 142) resolved by speckle interferometry (Mason et al. 2012) prob_member = 1 (Perryman+ 1998) ---------------------------------------------------------------------------------------------- V1099 Tau = 48 Tau = HD 26911 = BUP 51 A (wide VDS) = vB 20 Ellipsoidal variable, F6III -> unresolved (Hartkopf et al. 1984), Te=6624 K, log(g)=4.03 v.sini= 50; prob_member = 1 (Perryman+ 1998) ---------------------------------------------------------------------------------------------- V696 Tau = 58 Tau = HD 27459 = vB 33 DSCT (Jian-ning et al. 1996), A9IV; v.sini=82, Te=7982 K prob_member = 1 (Perryman+ 1998) ---------------------------------------------------------------------------------------------- V775 Tau = 60 Tau = HD 27628 = vB 38 = BUP 54 A (wide VDS) DSCT (Horan 1979)/SB1, P=2.1436d (Griffin 2012), A9IV/A3m ; v.sini=32, Te=7443 K prob_member = 1 (Perryman+ 1998) ---------------------------------------------------------------------------------------------- V483 Tau = 57 Tau = HD 27397 = vB 30 DSCT (Jian-ning et al. 1996)/SB1, P=2.486 d (Kaye 1999) A/Fm; v.sini=102, Te=7525 K Paparo et al. (2000) identified 8 frequencies among 12 [7-25 c/d], of which 2 are found in the low frequency domain. If the mass ratio is obtained from the binary motion, and the chemical composition & distance based on the membership of Hyades are assumed, 57 Tau is a good candidate for modelling. prob_member = 1 (Perryman+ 1998) ---------------------------------------------------------------------------------------------- NB: The above 3 DSCT stars are in the paper by Suarez et al. A&A 390, 523-531 (2002) Star Mv B2-V1 ${A_{{\rm osc}}}$ ${{V}~\sin~i}$ Sp Weight Cluster HD 27397 2.33 0.076 0.018 100 F0V 2 Hyades HD 27459 1.87 0.025 0.010 70 A9V 2 Hyades HD 27628 2.45 0.101 0.010 40 Am 2 Hyades