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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).

Cir

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            
========================================================================================================
230002    S      Cir   15h 29m 17.4s  -58o  4' 43"   EA/DS    10.8        9.976596        A:              
230003    T      Cir   13h 43m 24.0s  -65o 28' 32"   EA/SD     9.3        3.2984345       B6/8II/III      
230005    V      Cir   14h 44m 54.7s  -57o  1' 56"   EB/DM    10.8        4.40901                         
230008    Y      Cir   13h 39m  9.9s  -65o  2' 11"   E/SD:    10.8        3.17                            
230010    RR     Cir   13h 50m 34.6s  -66o 57' 52"   E        12.0                                        
230018    RZ     Cir   13h 56m 57.5s  -64o 58' 20"   E/SD     14.1        3.6933                          
230022    SV     Cir   14h  1m 42.4s  -67o 41' 39"   E/SD:    13.0                                        
230030    TW     Cir   14h  8m 28.8s  -70o  9' 41"   E/SD     13.0        1.11015                         
230037    UX     Cir   14h 15m 59.3s  -67o 39'  9"   E        12.2                                        
230043    VY     Cir   14h 24m 23.2s  -69o 57' 58"   E/SD:    11.7                                        
230050    XY     Cir   14h 31m  3.9s  -66o 38' 54"   E        12.1                                        
230067    AN     Cir   14h  4m 21.9s  -65o 38'  5"   EA/SD    13.8        4.6415                          
230070    AQ     Cir   14h 37m 19.8s  -64o 45' 24"   E/KE     11.0        0.57284         OB              
230073    AT     Cir   14h  3m 38.2s  -66o 44'  7"   EA/DM     8.4        3.257494        A5IV/V          
230074    AU     Cir   14h 43m 45.3s  -66o 42' 13"   EA/SD    10.7        2.0660680                       
230076    AW     Cir   14h 50m 11.0s  -64o 32' 43"   EA/SD:   12.                                         
230080    BB     Cir   14h 42m 57.5s  -58o 18' 24"   EA/SD:    9.4        3.0872          A2IV            
230082    BD     Cir   14h 51m  5.4s  -55o 55'  0"   EA/KE:    9.4        0.86956                         
230084    BF     Cir   15h  2m 32.0s  -64o 57' 42"   EB/DM:    8.8        6.458997        B5V             
230085    BG     Cir   15h  4m 21.5s  -66o  5'  4"   EB/DM     9.6        1.911485        ea              
230091    BN     Cir   15h 17m 50.4s  -59o 43' 42"   E         9.2        6.7125          B9III/IV        
230106    CE     Cir   14h  4m 20.9s  -65o 24' 58"   E:        7.94                                       
230112    CL     Cir   14h 44m  4.1s  -56o 21' 33"   EA        8.57                                       
230114    CN     Cir   14h 47m 49.0s  -60o 25' 26"   EB        8.92                                       
230132    DI     Cir   14h  1m 49.5s  -64o 49' 17"   EA       11.30       1.44876                         
230133    DK     Cir   14h 47m 12.7s  -57o 40' 38"   EA        7.68      18.569           A1IV            
230134    DL     Cir   14h 48m  8.1s  -60o 34'  9"   EA       12.30       2.43419                         
230135    DM     Cir   15h 24m  8.5s  -56o 50' 15"   EW        9.99       0.386773        F7/G0           
========================================================================================================