BINARIES AMONG GALACTIC CLASSICAL CEPHEIDS - MAIN TABLE
Cepheid log P <V> Comp. Dupl. Remark References
status
U_Aql 0.847 6.5 B9.8V O triple, ADS 12503 [Ab59][BP85][Ev92d][Ev95] [ECRKD05] [GKBMPGMSEABRK19] [Ll82][Ma77][POP81][WELHBSM87]
FF_Aql 0.650 5.4 A9-F3V O triple, ADS 11884 [BMFBHPMBF07] [EWST90] [GKBMPGMSEABRK19] [G08] [GRS96][GSBRS95][POP81][RGS97][UE93]
FN_Aql 0.977 8.4 - B - [De77][Sz88][Us90][SzCsKCsDSzSBKJM14]
KL_Aql 0.786 10.2 - B - [Pe78][Sz91]
V496_Aql 0.833 7.8 A1-A2 O - [Ev92a][G08][Sz89]
V916_Aql 1.128 10.8 - B - [GSRS96]
V1344_Aql 0.874 7.8 - B - [SzCsKCsDSzSBKJM14]
Eta_Aql 0.856 3.9 B9.8V B - [BP85][Ev91]
V340_Ara 1.318 10.3 - B - [SB03b]
RT_Aur 0.572 5.4 - B: - [Tetal07]
RX_Aur 1.065 7.7 - B - [GSRS96][MF80][Sz88]
YZ_Aur 1.260 10.4 - B - [Ma77][MF80][SP98]
AN_Aur 1.012 10.5 - B - [Ma77][Sz91]
AS_Aur 0.502 11.9 - B - [SP98]
RW_Cam 1.215 8.7 - B - [BP85][Ev94][Hip97][Ma77]
RX_Cam 0.898 7.7 - O - [Ev95][GRS96][Im96][RGS97][Sz92a]
RY_CMa 0.670 8.1 - B - [Vi91]
RZ_CMa 0.629 9.7 - b - [Ma77][MF80][Pe78]
SS_CMa 1.092 9.9 - B - [ACRMHSPBEMPR16] [EU94][Sz96]
VZ_CMa 0.495 9.4 - B - [SB79][Sz96]
U_Car 1.589 6.3 - B - [Be02]
V_Car 0.826 7.4 - B - [Ev92a][Ll68][Sz89]
Y_Car 0.561 7.8 B9.0V O Double-mode puls., triple system [Ba83][BECMBR97][Ev92b][Ev95][ECRKD05][PCA04]
VY_Car 1.277 7.5 - B in Car OB1 [ACRMHSPBEMPR16] [EU94][Hic92][Hip97][Sz96][Tu77]
WW_Car 0.670 9.7 - B - [KSzCLB15]
WZ_Car 1.362 9.3 - b - [RSC81]
XX_Car 1.196 9.4 - B - [Be02]
XZ_Car 1.221 8.7 - B - [ACRMHSPBEMPR16]
YZ_Car 1.259 8.7 (B8-A0V O - [ACRMHSPBEMPR16] [Co83][Ev95] [EB93] [GKBMPGMSEABRK19] [PCA04]
AQ_Car 0.990 8.8 - B - [ACRMHSPBEMPR16]
EY_Car 0.459 10.3 - B - [Sz96]
FO_Car 1.015 10.7 - B - [SB03b]
FR_Car 1.030 9.7 - B - [Sz96]
GH_Car 0.758 9.2 - B - [SDKKAKSSC13]
GI_Car 0.647 8.3 - b - [De77][Gi85]
HK_Car 0.826 10.3 - V - [Hip97]
RY_Cas 1.084 10.0 - V ADS 17057 [Hic92]
SU_Cas 0.290 6.0 B9.5V O in Cas OB2 [Ev91][G08][GRS96][GSRS96][RGS97][Sz91][TE84]
SY_Cas 0.610 9.9 - B - [Sz96]
BY_Cas 0.508 10.3 - OV - [GSR94][GRS96][GSBRS95][Hip97][Ku66]
CE_Cas (a) 0.711 10.9 CEb_Cas V in NGC 7790 [ST69]
CE_Cas (b) 0.651 11.1 CEa_Cas V in NGC 7790 [ST69]
CG_Cas 0.640 11.4 - B - [Sz96]
DD_Cas 0.992 9.9 - b - [Ma77][MF80]
DL_Cas 0.903 9.0 B9V O in NGC 129 [BBMD94][Ev95][GWMMH94][HWKS87][MMB87]
TX_Cen 1.854 10.5 - V - [Ma77][POP81]
UZ_Cen 0.523 8.8 - V double-mode [Hic92][POP81]
VW_Cen 1.177 10.3 - B - [Ma77][MF80][Pe78][Sz96]
XX_Cen 1.040 7.8 (A1V O - [Ev95][G08][Sz90]
BK_Cen 0.502 10.1 - V double-mode [Hip97]
KN_Cen 1.532 9.9 B6.0V B - [ACRMHSPBEMPR16] [BP85][Ev94][Ll68][Ma77][Sz89]
OO_Cen 1.110 12.1 - B - [Sz96]
V339_Cen 0.976 8.7 - V - [Hip97]
V419_Cen 0.741 8.2 - B - [SDKKAKSSC13]
V659_Cen 0.750 6.6 B6.0V B - [Ev92d][Ev94][Hip97]
V898_Cen 0.547 8.0 - B - [SDKKAKSSC13]
AK_Cep 0.859 11.2 - b - [Ma77][Vi91]
CP_Cep 1.252 10.6 - b - [Ma77]
IR_Cep 0.325 7.8 - V - [Hic92]
MU_Cep 0.576 12.3 - B - [A13]
V351_Cep 0.448 9.5 - B - [GSRS96]
delta_Cep 0.730 4.0 - O - [POP81][BMFHSetal02][ASHEPMSR15]
AV_Cir 0.486 7.4 - V - [Hic92]
AX_Cir 0.722 5.9 B6.0V OV - [Ev92a][Ev94][Ev95][Hip97][Ll82][PAC98][PCA04][Sz89]
BP_Cir 0.380 7.5 B6.0V B - [AM85][Ev94][EAU92] [PCA04]
R_Cru 0.765 6.8 - B - [SB03a]
T_Cru 0.828 6.6 - B - [Be02][Ev92a][KKB90]
SU_Cru 1.109 9.8 - BV - [CC89][Hip97][Sz96][Vi91]
TY_Cru 0.699 12.8 - B - [PMB94]
VX_Cru 1.087 12.0 - B - [Sz96]
AG_Cru 0.584 8.3 - B - [De77][Gi82][Pe78]
BG_Cru 0.524 5.5 - B - [Sz89]
SU_Cyg 0.585 6.9 B8.0V O triple, in cluster [Ev88a][Ev95][EB90][G08][Im84][Ma77][RGS97][TIMBH98][WE98]
SZ_Cyg 1.179 9.5 - B - [ACRMHSPBEMPR16] [Ku66][Ma77][Sz91]
VZ_Cyg 0.687 9.0 - O - [G08][GSBRS95][RGS97][SGKR93]
BZ_Cyg 1.006 10.2 - b - [Ku66][MF80][Sz91]
CD_Cyg 1.232 9.1 - B - [ACRMHSPBEMPR16]
MW_Cyg 0.775 9.5 - O - [GRS96][GSIKRST92][GSBRS95][Im96][RGS97]
V386_Cyg 0.721 9.7 - B - [Ku66][Ma77][Sz91]
V532_Cyg 0.516 9.1 - b - [GRS96][Ma77][Sz91][Us90]
V1334_Cyg 0.523 5.9 B7.0V O triple?, ADS 14859 [Ev92a][Ev95] [ECRKD05] [Sz91] [GDMKKSGPSCBPMBSSTFV13]
TX_Del 0.790 9.2 - O - [GRS96][HW89][La95][RGS97]
RZ_Gem 0.743 10.1 - B - [Ma77][MF80][Sz91]
AA_Gem 1.053 9.7 - B - [EU94][SP98]
AD_Gem 0.578 9.9 - B - [Sz91]
DX_Gem 0.497 10.7 - B - [Bu85]
zeta_Gem 1.006 3.9 - V ADS 5742 [POP81]
X_Lac 0.736 8.4 - B - [GSRS96][Ll82][Us90]
Y_Lac 0.636 9.2 A0.5V B - [Ev92d][ESU90][GIRS92][GSRS96][Ma77][Sz91]
Z_Lac 1.037 8.5 (A5 O - [Ev95][EW93][G08][GRS96][Im96][RGS97][SE96]
RR_Lac 0.807 8.9 - B - [GSRS96]
BG_Lac 0.727 8.9 - B - [Ma77][MF80][Sz91]
GH_Lup 0.967 7.6 - B - [Pe78][Sz89]
T_Mon 1.432 6.2 B9.8V O in Mon OB2? [Ev95][EL94][ECRMWVS99][G08][Gi89][GRS96][Tu76]
TX_Mon 0.940 11.0 - B - [SP98]
TZ_Mon 0.871 10.8 - B - [Sz96]
XX_Mon 0.737 11.9 - B - [Ma77][Sz96][Vi91]
AC_Mon 0.904 10.1 - B - [PMB94]
CS_Mon 0.828 11.0 - V - [EU94]
CV_Mon 0.731 10.3 - b in cluster [EU94][GMMW96][Ma77][Pe78][TPW98]
V465_Mon 0.433 10.4 (A0V B - [Bu85][BBMD94][Ev95]
V495_Mon 0.612 12.4 - B - [SP98]
R_Mus 0.876 6.3 - B - [KKB90][Ll82]
S_Mus 0.985 6.1 B3.5V O - [BECMBR97][Ev90a][Ev95] [EMT94] [GKBMPGMSEABRK19] [G08][Ll82][PAC98][PCA04]
RT_Mus 0.489 9.0 - B - [Sz96]
S_Nor 0.989 6.4 B9.5V O in NGC 6087 [Ev92d][EU94][G08][Ma77][MMB87][Sz89]
SY_Nor 1.102 9.5 B4.5V B - [Be02][BBMD94][BP85][Ev94][Hic92][Ma77][POP81]
Y_Oph 1.234 6.2 - O - [AL78][Ev92a][Sz89]
BF_Oph 0.609 7.4 - B - [Ba77][Ku66][Ll82][Sz89]
RS_Ori 0.879 8.4 - B - [ESU90][Ma77][Sz91]
CR_Ori 0.691 12.3 - B - [Sz96]
CS_Ori 0.590 11.4 - B - [SP98]
SV_Per 1.046 9.0 B8.0III B - [BP85][Ev94][GB92][Ll84][Ma77]
UX_Per 0.660 11.6 - BV - [Hip97][SP98]
VY_Per 0.743 11.3 - B - [Sz92b]
AW_Per 0.810 7.5 B8.2V O triple [Ev89][Ev94][Ev95][EVW00][G16][GRS96][Ll68][Ma77][Sz91][Vi93][WE89]
CI_Per 0.518 12.7 - B - [PQBM96]
V440_Per 0.879 6.3 - B: ADS 1820 [GRS96][GSRS96]
X_Pup 1.414 8.5 - B - [ACRMHSPBEMPR16] [SDKK12]
VW_Pup 0.632 11.4 - B - [SP98]
AD_Pup 1.133 9.9 - B - [SDKKAKSSC13]
AP_Pup 0.706 7.4 - B - [Ll82]
AQ_Pup 1.478 8.8 - B - [EU94][MF80][Vi91]
AT_Pup 0.824 8.0 (A2V B - [Ev95][Gi85][Ku66]
BM_Pup 0.857 10.8 - V - [Hip97]
HL_Pup 0.542 10.8 - V - [Hip97]
LS_Pup 1.151 10.5 - B - [Sz96]
S_Sge 0.923 5.6 A7-F0V O triple [BG93][Ev95][EWSBM93][G08][GRS96][GSBRS95][HM52][Ku66][RGS97]
U_Sgr 0.829 6.7 - B in M25, ADS 11433 [BBMD94][Hic92][POP81][Sa60]
W_Sgr 0.881 4.7 A0V O triple, ADS 11029 [AC96][BBMWC89][BBMD94][BMFBHPMBF07][Ev91][Ev95][ECRKD05] [GKBMPGMSEABRK19] [G08] [Hic92][PCA04][POP81]
X_Sgr 0.846 4.6 - O - [Ev92a][G08][Sz90]
Y_Sgr 0.761 5.8 - B - [Be02][Ev92a][Ku66][Sz89]
VY_Sgr 1.132 11.6 - B - [PMB94]
WZ_Sgr 1.339 8.1 - B in cluster [Be02][Sz89][TBYDF93]
XX_Sgr 0.808 8.7 - B - [SDKK12]
YZ_Sgr 0.980 7.4 - B - [Sz96]
AP_Sgr 0.704 7.0 - B - [Gi82]
AV_Sgr 1.188 11.4 - B - [Sz96]
AY_Sgr 0.818 10.6 - B - [SDKKAKSSC13]
BB_Sgr 0.822 7.0 - B in Cr 394 ? [Gi82][TP85]
V350_Sgr 0.712 7.5 B9.0V O - [Ev92d][Ev95][ES97][EU89][EBCBR97][EBGRE11] [GKBMPGMSEABRK19] [G08][GRS96][GSBRS95][Ll82][PCA04][RGS97]
RV_Sco 0.783 7.1 - B - [Ev92a][Hic92][POP81][Ku66][Sz89]
RY_Sco 1.308 8.0 - V - [EU94][Hic92][Ku66][POP81]
V482_Sco 0.656 8.0 - B - [Ev91][Vi91]
V500_Sco 0.969 8.8 - b - [Ku66][Ma77][MF80][Sz89]
V636_Sco 0.832 6.7 B9.5V O triple? [BECACRB98][Ev92d][Ev95] [GKBMPGMSEABRK19] [Ku66][Ll68] [Ll82][PCA04]
X_Sct 0.623 10.0 - b - [EU94][Ma77]
Y_Sct 1.015 9.7 - b - [MB87][Sz89]
RU_Sct 1.294 9.5 - B in Tr 35 [Sz96][Tu80b]
TY_Sct 1.043 10.9 - B - [PMB94][Ma77]
UZ_Sct 1.169 11.3 - B - [PMB94]
EV_Sct 0.490 10.1 - B: in NGC 6664 [KA99][MMB87]
BQ_Ser 0.631 9.5 - B: - [GRS96]
SZ_Tau 0.498 6.5 - B in NGC 1647 [Ef64][Ev92a][GRS96][GSRS96][Tu92]
EU_Tau 0.323 8.1 - B: - [GRS96]
R_TrA 0.530 6.7 (A5V B - [Ev95][Gi82][Ku66][Ll82]
LR_TrA 0.385 7.8 B - [SADKSSC13]
Alpha_UMi 0.599 2.0 F0V O triple, ADS 1477 [ESBBKNSM08][ESS02][ESS02][Ev88b][Ev95][Fe66][Ka96][KEL84][Mo29][POP81][Ro65][WJDLS00][Wy57]
T_Vel 0.666 8.0 - B - [De77][Gi85][Ku66]
V_Vel 0.641 7.6 - B - [Ev92a][Sz89]
RZ_Vel 1.310 7.1 - B - [SADKSSC13]
ST_Vel 0.768 9.7 - B - [SDKKAKSSC13]
AH_Vel 0.626 5.7 - B - [Gi80][Ll68][Ll82]
BG_Vel 0.840 7.6 - B - [De77][Ku66][SADKSSC13]
DK_Vel 0.394 10.7 - V - [Hic92][Hip97]
DP_Vel 0.739 11.8 - B - [Sz96]
FN_Vel 0.726 10.3 - B - [A13][KSzCLB15]
S_Vul 1.835 9.0 - B in Vul OB2? [GSRS96][Tu80a][TLM86]
T_Vul 0.647 5.8 A0.8V B - [Ev92c][Ku66]
U_Vul 0.903 7.2 - O - [G08][Im96][Ku66][Sz91][Sz96]
SV_Vul 1.653 7.3 - B in Vul OB1 [Ev92a][Sz96][Tu84]

Legend

In the column Comp. the spectral type of the companion is given. "(" means a spectral type later than that given following the symbol.

In the column "duplicity status":

B - spectroscopic binary (: - confirmation needed)
b - photometric companion, physical relation should be investigated
O - spectroscopic binary with known orbit (clicking on the O will show the orbital elements)
V - visual binary