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O-C DIAGRAMS AND UP-TO-DATE LINEAR
ELEMENTS OF ECLIPSING BINARIES

When using this database please include a citation to: J.M. Kreiner, 2004, Acta Astronomica, vol. 54, pp 207-210.

Diagrams are computed for an average ephemerides presented in left-bottom corner of picture.
For small number of data ephemerides for diagram is taken from literature.
Based of last trend on O-C daigrams, an linear ephemerides and current orbital phase is calculated based on YOUR COMPUTER TIME !!!! (If there is enough data after 1960).

Eri

And| Ant| Aps| Aqr| Aql| Ara| Ari| Aur| Boo| Cae| Cam| Cnc| CVn| CMa| CMi| Cap| Car| Cas| Cen| Cep| Cet| Cha| Cir| Com| Col| CrA| CrB| Crv| Crt| Cru| Cyg| Del| Dor| Dra| Equ| Eri| For| Gem| Gru| Her| Hor| Hya| Hyi| Ind| Lac| Leo| LMi| Lep| Lib| Lup| Lyn| Lyr| Men| Mic| Mon| Mus| Nor| Oct| Oph| Ori| Pav| Peg| Per| Phe| Pic| Psc| PsA| Pup| Pyx| Ret| Sge| Sgr| Sco| Scl| Sct| Ser| Sex| Tau| Tel| Tri| TrA| Tuc| UMa| UMi| Vel| Vir| Vol| Vul

From GCVS:
Nr.GCVS STAR  CONST.   RA   (2000)    DEC         Type   V [mag]     P [days]          Spec            
========================================================================================================
360013    RU     Eri    3h 54m 43.8s  -14o 56'  7"   EB/KE     9.35       0.63219951      F0              
360017    RY     Eri    3h 58m 58.1s  -17o 13' 47"   EA/SD    10.3        4.97927         F5              
360018    RZ     Eri    4h 43m 45.8s  -10o 40' 56"   EA/DS/    7.70      39.28238         A5+G8IV         
360027    TT     Eri    2h 52m 39.2s  -23o 46' 34"   EA/SD    12.92       1.33537                         
360028    TU     Eri    3h  3m 13.4s  -20o 36' 52"   S:       12.8                        F5              
360029    TV     Eri    3h  8m 46.7s  -19o 27' 38"   EA/SD:   13.43       1.29847                         
360031    TX     Eri    3h 12m 34.7s  -19o 31' 58"   S:       12.7                        G2              
360033    TZ     Eri    4h 21m 40.3s   -6o  1'  9"   EA/SD     9.8        2.6060653       F               
360037    UX     Eri    3h  9m 52.7s   -6o 53' 34"   EW/KW    10.5        0.44527942      F8              
360040    VV     Eri    3h 21m 22.6s  -10o 17'  6"   EA/SD:   11.         1.557586        A               
360045    WW     Eri    5h  5m  4.7s   -7o 33' 43"   EB/KE    11.0        0.9264970                       
360046    WX     Eri    0h  0m  0.0s    0o  0'  0"                                                        
360051    XZ     Eri    4h 11m 25.8s  -15o 23' 23"   UG       14.6                                        
360052    YY     Eri    4h 12m  8.8s  -10o 28' 10"   EW/KW     8.1        0.32149415      G5+G5           
360054    ZZ     Eri    4h 13m  1.1s  -10o 44' 54"   E        13.9        0.4520603                       
360055    AA     Eri    4h 13m 41.9s  -11o 33' 36"   E        12.8        0.50085                         
360064    AK     Eri    4h 25m 35.2s  -18o 48'  2"   E/SD:    12.5        2.6303                          
360066    AM     Eri    4h 29m 51.0s  -12o 14' 23"   EW/KW    14.4        0.316576                        
360068    AO     Eri    4h 32m  0.9s  -17o 44' 48"   EA/DS    11.8        9.2982                          
360072    AS     Eri    3h 32m 25.1s   -3o 18' 48"   EA/SD     8.29       2.664152        A3V             
360081    BC     Eri    4h 46m 59.0s  -14o 37' 23"   EW/KE    10.83 :     0.52778916      A6              
360089    BL     Eri    4h 11m 48.2s  -11o 47' 27"   EW/KE    11.5        0.4162          B5              
360094    BQ     Eri    5h  7m 59.7s   -5o 50' 38"   EB/DM    10.5        1.429712        A8              
360097    BT     Eri    3h 34m 31.1s  -39o 24' 43"   EA/SD:    9.56       2.112269        A0              
360098    BU     Eri    3h 49m 20.9s  -20o 52' 27"   EA        8.5                        A3              
360099    BV     Eri    3h 51m 53.3s  -10o 31' 50"   EW        8.12       0.5076649       F2              
360100    BW     Eri    4h  6m 36.8s  -27o 40'  8"   EB        9.5        0.6384773       A3              
360103    BZ     Eri    4h 12m 12.7s   -6o  1' 18"   EA        9.         0.6641701       F2              
360105    CD     Eri    3h 47m 46.0s   -8o 36' 41"   EA/SD:    9.51       2.876728        A0              
360110    CI     Eri    1h 58m 38.5s  -53o 31' 39"   EA/SD:    9.5        3.382880        F8V             
360115    CO     Eri    2h 35m 38.6s  -45o  4' 12"   EA/SD     9.0        5.7836          F7V             
360120    CT     Eri    4h 29m 24.8s  -33o 34' 34"   EW/KE    10.0        0.634195498     F0              
360123    CW     Eri    3h  4m  0.0s  -17o 44' 16"   EA/DM     8.43       2.7283737       F0              
360141    DS     Eri    3h 49m 10.6s  -42o 36' 55"   EB       10.         0.827701                        
360153    EI     Eri    4h  9m 40.9s   -7o 53' 34"   RS        6.95                                       
360174    FK     Eri    2h 44m 58.4s  -17o 46' 52"   EA        9.21                                       
360178    FO     Eri    2h 52m 24.6s  -41o  9'  3"   EA        8.51                                       
360187    FX     Eri    3h 37m  1.4s  -41o 31' 40"   EW        9.73                                       
360191    GH     Eri    3h 44m 13.0s  -41o 16' 47"   EA        9.03                                       
360205    GW     Eri    4h 11m 36.2s  -20o 21' 22"   EA        5.84                                       
360214    HN     Eri    4h 33m 24.9s  -23o 56' 20"   EB        8.66                                       
360242    IY     Eri    2h  7m 28.2s  -57o 52' 10"   EW:      10.86       0.750035                        
360247    KN     Eri    4h 34m 17.9s   -4o 56' 46"   EW       13.23       0.396604                        
360249    KP     Eri    4h 43m  7.2s   -7o 24' 42"   EA        8.78       7.447126        A2              
360252    KS     Eri    5h  9m  2.9s   -7o 44' 12"   EB        9.32       0.533437        F0              
360256    KW     Eri    2h 54m 13.5s  -47o  6' 50"   EW       13.4        0.2352922                       
360257    KX     Eri    2h 58m 10.4s   -6o 11' 50"   EB       12.75      64.38                            
360259    KZ     Eri    3h 31m 54.3s   -1o 38' 21"   EA       11.3        0.942690                        
360271    LW     Eri    4h 31m 27.7s    0o 43' 52"   EB       12.5        0.46561                         
360279    MQ     Eri    4h 53m 31.5s   -6o 41' 45"   EA       12.6       11.822                           
========================================================================================================