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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).

Cet

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            
========================================================================================================
210015    RW     Cet    2h 15m 21.4s  -12o 12' 27"   EA/SD    10.43       0.9752009       A5              
210019    SS     Cet    2h 48m 36.3s    1o 48' 27"   EA/SD     9.4        2.973976        A0              
210022    SV     Cet    0h 34m 55.8s  -22o 38' 47"   EW/KE    14.5        0.5841870                       
210027    TT     Cet    1h 46m 56.5s   -9o 45' 10"   EW/KE:   10.8        0.4859565       A               
210028    TU     Cet    2h 59m 21.7s    3o 16' 33"   EA/SD    10.8        4.39117         F6-F8V          
210029    TV     Cet    3h 14m 36.5s    2o 45' 16"   EA/DM     8.60       9.1032884       F2              
210030    TW     Cet    1h 48m 54.1s  -20o 53' 35"   EW/KW    10.43       0.3168519       G5+G5           
210031    TX     Cet    1h 56m  6.3s    0o 44' 20"   EB/KE    10.90       0.74084025      A2nn            
210032    TY     Cet    2h 20m 44.3s  -14o 23' 23"   EW/KE    11.62       0.647364        F0              
210040    VV     Cet    0h 55m 43.3s   -2o  5' 38"   EW/KE    10.3        0.522390        A5              
210041    VW     Cet    1h 39m  4.3s  -17o 50' 49"   EB/KW:   11.6        0.486                           
210042    VX     Cet    2h 39m 35.2s    0o 15' 44"   EA/SD:   11.         2.7207954       F               
210043    VY     Cet    1h 49m 33.7s  -19o 37' 29"   EW/KW    11.10       0.3408097                       
210047    WY     Cet    1h 35m 35.9s  -11o 56' 31"   EA/SD:    9.6        1.939675        A2              
210048    WZ     Cet    1h 41m  0.7s   -6o 43' 34"   EA/DM    10.8        6.645088        A0              
210050    XY     Cet    2h 59m 33.5s    3o 31'  3"   EA/DM     8.65       2.780712        Am+Am           
210052    YY     Cet    2h  0m 12.0s  -18o 12' 28"   EB/KE:    9.         1.117455        A7              
210055    AA     Cet    1h 59m  0.7s  -22o 55' 11"   EW/KE     6.2        0.53616996      F2              
210111    CK     Cet    0h 22m 57.0s  -20o 39' 24"   EB       10.41                                       
210112    CL     Cet    0h 29m  4.1s  -17o 13'  1"   RRC:      9.88                                       
210120    CT     Cet    1h  9m 45.8s  -20o 12' 59"   EW        9.41                                       
210138    DP     Cet    2h  9m 51.4s    3o 46' 10"   EA        6.85                                       
210147    DY     Cet    2h 38m 33.2s  -14o 17' 57"   EW        9.54                                       
210149    EE     Cet    2h 49m 52.4s    8o 56' 23"   EW        8.78                                       
210165    EV     Cet    0h 57m 53.8s    0o 46' 35"   EW       11.6        0.4282299                       
210172    FH     Cet    1h 51m  5.9s   -3o 32' 41"   EA       13.7        0.936002                        
210175    FL     Cet    1h 55m 43.4s    0o 28'  7"   E+XM     15.5        0.06051621      pec(e)          
210180    FQ     Cet    2h 12m 18.7s  -13o 30' 42"   EA       10.4        6.709914                        
210191    GH     Cet    1h 56m 49.9s  -21o 11' 44"   EA       10.52       1.135238                        
210198    GP     Cet    0h 36m 55.1s   -5o 52' 27"   EA        9.81       3.4885          F0V             
210200    GR     Cet    0h 47m 16.0s  -19o 41' 44"   EW       11.21       0.488810        FO              
210210    HI     Cet    1h 44m 16.9s   -2o 18' 45"   EA       12.88       2.71883                         
210213    HM     Cet    2h  7m 31.4s    5o 41'  6"   RRC      12.66       0.22232                         
210219    HS     Cet    2h 46m 44.5s    1o  7' 55"   EA       10.5        3.6910                          
========================================================================================================