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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).

Del

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            
========================================================================================================
320006    W      Del   20h 37m 40.1s   18o 17'  4"   EA/SD     9.69       4.806100        B9.5Ve+G5       
320010    RR     Del   20h 43m 33.9s   13o 56' 41"   EA/SD    10.2        4.599535        A               
320027    TT     Del   20h 36m  2.4s    8o 27'  3"   EA/SD    10.6        2.871119        A1              
320032    TY     Del   21h  4m 22.0s   13o 12' 54"   EA/SD     9.7        1.19112689      B9              
320049    XX     Del   20h 28m 17.3s   18o 33' 17"   EA/SD    13.0        2.12363                         
320052    YY     Del   20h 30m  0.8s   14o  3' 10"   EA       11.3        0.7930922       A3              
320065    AL     Del   20h 36m 15.8s   13o  5' 21"   EB/KE    12.2        1.485485                        
320075    AV     Del   20h 45m 31.5s   11o 10' 26"   EA/SD    10.7        3.85343         F8              
320083    BE     Del   20h 23m 50.6s   13o 14' 59"   EA       14.2        6.3091                          
320084    BF     Del   20h 25m  7.8s   12o 17' 34"   EA/SD    13.8        3.76016                         
320085    BG     Del   20h 26m 22.5s   17o 32' 48"   EB/KE    13.6        0.563610                        
320086    BH     Del   20h 27m 36.6s   13o 41'  1"   EA/SD    13.2        1.614145                        
320087    BI     Del   20h 27m 38.6s   14o 20'  9"   EA/SD    11.4        7.25238         G0              
320089    BL     Del   20h 34m  3.0s   15o  5'  6"   EA/SD:   15.2        3.83474                         
320091    BN     Del   20h 38m  6.2s   13o 33'  6"   EA/SD:   12.7        2.47872                         
320092    BO     Del   20h 39m 23.7s   14o 23' 41"   EA/SD    14.3        1.2876085   :                   
320093    BP     Del   20h 41m 28.4s   18o 54' 51"   EA/SD:   13.8        2.          :                   
320094    BQ     Del   20h 44m 24.6s   14o 28' 26"   EA/SD    15.2        3.42658                         
320096    BS     Del   20h 52m 58.3s   16o  2' 43"   EA/SD    12.8        2.97751                         
320097    BT     Del   20h 53m 44.1s   15o 44'  7"   EA/SD    14.6        3.54262                         
320100    BW     Del   20h 21m  6.5s   18o 23' 11"   EA       11.4        2.423114        F2              
320102    BY     Del   20h 21m 49.9s   12o 24' 27"   EA/DM    11.4        5.01713         F9              
320106    CE     Del   20h 23m  2.9s   10o 19' 14"   RRC      13.3        0.42669                         
320114    CN     Del   20h 25m 20.2s   13o 26' 11"   EW/KE    14.2        0.590825                        
320118    CR     Del   20h 28m 50.1s   15o 37'  1"   EB/KE    13.5        0.71363                         
320133    DK     Del   20h 37m 35.7s   15o 48' 38"   EB/KE    14.0        0.589                           
320135    DM     Del   20h 39m 37.0s   14o 25' 43"   EB/KE     8.58       0.8446758       A2V             
320136    DN     Del   20h 40m  4.1s   13o 48' 26"   SR:      14.1                        G5III:          
320160    EQ     Del   20h 39m 40.4s   12o 26'  9"   EA/SD    13.0        2.248025                        
320163    ET     Del   20h 54m 56.4s    8o 23' 28"   EB/KE    12.0        1.010784        A0:             
320166    EW     Del   20h 16m 31.1s   15o 41' 57"   EW/KW    15.1        0.391148                        
320167    EX     Del   20h 16m 58.4s   15o 52' 53"   EW/KW    12.8        0.39684486                      
320172    FH     Del   20h 28m 12.3s   19o 26' 22"   EA/SD:   14.6        0.678036                        
320173    FI     Del   20h 29m 16.3s   14o 46'  0"   EB/KW:   14.2        0.415928                        
320174    FK     Del   20h 30m 19.8s   12o 26' 13"   EW/KE    14.0        0.6667316                       
320178    FO     Del   20h 40m 47.6s   10o 18' 39"   EA/SD:   13.8        1.195410                        
320181    FR     Del   20h 55m 12.9s   11o 37' 42"   EW/KW    15.0        0.3497476                       
320189    FZ     Del   20h 53m 32.5s    4o 38' 50"   EA/SD    10.2        0.7832126       F               
320190    GG     Del   20h 14m 31.8s   15o 16' 35"   EB       12.4        0.5632265       F7              
320248    KO     Del   20h 44m 47.9s   16o  7' 28"   EA       12.5                                        
320267    LS     Del   20h 57m 10.3s   19o 38' 59"   EW/KW     8.61       0.3638                          
320273    LY     Del   21h  6m 26.1s   19o 24' 37"   EA       10.40                                       
320278    MP     Del   20h 28m 26.6s   11o 43' 15"   EA        7.62                                       
320280    MR     Del   20h 31m 13.5s    5o 13'  9"   EA        8.85                                       
320286    MX     Del   20h 36m 23.1s   20o 35' 58"   EB        8.99                                       
320288    MZ     Del   20h 45m 20.0s    7o  2' 20"   EB        8.32                                       
320289    NN     Del   20h 46m 49.2s    7o 33' 10"   EA        8.49                                       
320307    OT     Del   20h 31m 31.9s    6o 46' 32"   EA       12.25       0.646147                        
320310    OW     Del   20h 48m 14.3s    4o 36' 54"   EA       12.51       0.558654                        
320311    OX     Del   20h 49m  0.6s   16o 13' 48"   EA       10.96       7.125           G5              
320313    OZ     Del   20h 23m 11.1s   18o 54' 46"   EW       10.48       0.911325        F2              
320314    PP     Del   20h 28m 23.9s   11o 31' 11"   E+RS      9.6        1.0209                          
320317    PS     Del   20h 31m 35.0s   12o 54' 20"   EA       11.95       0.753478                        
320322    PX     Del   20h 37m 47.8s   19o 51' 15"   EB       12.23      49.44                            
320323    PY     Del   20h 37m 56.5s   13o 37' 53"   EA:      12.08       0.60851                         
========================================================================================================