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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).

Com

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            
========================================================================================================
250015    RW     Com   12h 33m  0.3s   26o 42' 58"   EW/KW    11.00       0.2373459       G2+G2           
250018    RZ     Com   12h 35m  5.1s   23o 20' 14"   EW/KW    10.42       0.33850604      K0+G9           
250019    SS     Com   12h 49m 39.1s   18o 42' 12"   EW/KW    11.3        0.4127919       F5              
250037    UX     Com   13h  1m 33.0s   28o 37' 54"   EA/AR/    9.96       3.642583        G2III           
250043    VY     Com   11h 59m  3.8s   17o  0' 22"   EB/KE    13.9        1.00872                         
250070    AQ     Com   12h 42m 42.6s   21o 52' 17"   EW/KW    15.2        0.28208                         
250090    BM     Com   13h 28m 22.2s   15o 50'  8"   EB/KE    13.5        1.26452                         
250104    CC     Com   12h 12m  6.0s   22o 31' 59"   EW/KW    11.30       0.22068628                      
250110    CI     Com   12h 14m 11.2s   14o  1' 49"   EW:      13.5                                        
250113    CM     Com   12h 19m 25.2s   21o 20' 59"   E        13.0        3.596785                        
250114    CN     Com   12h 19m 47.0s   16o 30' 50"   EB       13.3        0.73544                         
250127    DD     Com   12h 28m 46.2s   21o 43' 33"   EW/KW    14.3        0.2692061                       
250130    DG     Com   12h 30m 10.0s   21o  0' 17"   EB/SD    14.3        0.986615                        
250154    EK     Com   12h 51m 21.4s   27o 13' 47"   EW       12.7                                        
250160    EQ     Com   12h 59m  2.8s   18o  2' 44"   EB       14.4        0.361867                        
250244    KK     Com   12h 32m 31.1s   21o  6'  3"   EB:       9.54                                       
250251    KR     Com   13h 20m 15.8s   17o 45' 57"   EB:       7.26                                       
250260    LL     Com   13h 17m 59.9s   30o  8'  2"   EB       12.3                                        
250263    LO     Com   12h 32m  4.9s   26o 22' 48"   EW       12.38                                       
250264    LP     Com   12h 33m  5.5s   27o  8'  4"   EW       12.76                                       
250265    LQ     Com   12h 37m 30.3s   26o  4' 52"   EW       12.8                                        
250266    LR     Com   12h 45m  6.9s   21o 39' 33"   EA       10.8                                        
250268    LT     Com   12h 52m 41.8s   26o 16' 38"   EB       10.53                                       
250275    MM     Com   13h  0m 11.7s   30o 23' 11"   EW       12.25       0.3019899                       
250280    MR     Com   13h 14m 24.2s   27o 11' 32"   EW       12.00       0.412749                        
250288    MZ     Com   12h 32m 40.7s   23o 48'  5"   EA/RS    10.05       7.54596                         
250289    NN     Com   12h 35m 31.9s   14o 19' 34"   EW       12.14       0.58283                         
250290    NO     Com   12h 41m  7.8s   30o 26' 14"   EA        6.94       2.7044          A5mF0           
250297    NV     Com   13h 12m 28.3s   25o 14' 27"   EW:      11.85       0.370890                        
========================================================================================================