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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).

Aps

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            
========================================================================================================
 30014    RV     Aps   14h 24m 17.0s  -73o 17' 27"   EA       12.1       34.07502         A-F             
 30019    SS     Aps   14h 34m 29.8s  -72o 55' 45"   EB       13.30       0.582672                        
 30025    SY     Aps   14h 39m 24.3s  -72o 49' 36"   EW       12.7        0.278908                        
 30026    SZ     Aps   14h 39m 11.9s  -71o 38' 29"   EA       13.6        3.5208                          
 30029    TV     Aps   14h 45m 49.7s  -71o 17' 40"   EW       13.8        0.647493                        
 30046    WX     Aps   14h 15m 32.6s  -74o 15' 36"   EA       11.41       4.6967613                       
 30052    YY     Aps   15h  2m 34.3s  -72o 45' 11"   EB       11.34       0.855552                        
 30060    AF     Aps   15h 31m 17.0s  -78o 20' 43"   EW       13.4        0.7976244                       
 30065    AL     Aps   15h 37m 38.4s  -75o 44' 48"   EA       12.90       7.432415                        
 30067    AN     Aps   15h 41m 16.3s  -73o 57' 44"   EB       12.5        1.045547                        
 30069    AP     Aps   15h 44m 19.4s  -76o 15' 16"   EB       14.4        5.378                           
 30072    AS     Aps   15h 46m 43.2s  -73o 27' 17"   EW       13.6        0.38560                         
 30075    AV     Aps   15h 48m 49.6s  -74o 30' 33"   EB       13.8        0.7095                          
 30078    AY     Aps   15h 58m 15.6s  -77o 38' 38"   EA       12.6        1.28707                         
 30080    BB     Aps   15h 58m 40.6s  -77o 52' 16"   EB       12.1        2.5332604                       
 30086    BH     Aps   16h  8m 40.2s  -76o 50' 28"   EA       11.3        3.650732                        
 30092    BO     Aps   16h 17m 55.5s  -72o 37' 31"   EA       13.2        1.84995                         
 30099    BV     Aps   16h 28m  8.3s  -79o 57' 42"   EA       12.4        1.646861                        
 30105    CD     Aps   16h 35m 29.9s  -80o 45' 42"   EA       11.45       3.30165                         
 30118    CR     Aps   16h 59m  6.3s  -81o  7' 51"   EA       13.8        2.1778                          
 30125    CY     Aps   17h  3m  3.6s  -76o 33' 51"   EA       13.3        3.82970                         
 30143    DU     Aps   17h 25m 46.0s  -78o 23' 26"   EA       11.5        3.087728                        
 30145    DW     Aps   17h 23m 30.0s  -67o 55' 45"   EA        8.86       2.3129485       B6III           
 30150    EF     Aps   17h 31m 17.1s  -74o 38' 24"   EA       11.7       10.08111                         
 30177    FN     Aps   15h 51m 33.3s  -72o 22' 22"   EA       11.07       5.730774                        
 30188    FY     Aps   17h 14m 20.2s  -70o  0' 48"   EA       10.63       2.7498106                       
 30189    FZ     Aps   14h 28m 24.8s  -82o 50'  8"   EA       12.7        2.89051                         
 30193    GK     Aps   15h 14m  4.7s  -79o 31' 20"   RRC      13.4        0.298406                        
 30197    GO     Aps   15h 30m 13.9s  -76o 58' 15"   EB:      14.6        0.4991                          
 30199    GQ     Aps   15h 36m 19.1s  -78o 13' 47"   EW       14.5        0.6353                          
 30203    GU     Aps   15h 46m 42.4s  -80o 19' 33"   EW       14.0        0.43652                         
 30207    GY     Aps   15h 51m 32.1s  -73o 33' 52"   EW       13.9        0.3752                          
 30212    HL     Aps   16h  7m 52.4s  -79o 49' 33"   EB       12.5        0.9562174                       
 30220    HT     Aps   16h 20m  6.5s  -78o 55'  9"   EB       14.0        0.4000                          
 30224    HX     Aps   16h 24m 48.8s  -75o 18' 33"   EB       14.2        1.0312                          
 30227    II     Aps   16h 27m 41.9s  -74o 50' 44"   EB       10.90       0.8422536                       
 30232    IO     Aps   16h 35m 27.7s  -74o 33' 18"   EA       12.6        7.94680                         
 30235    IR     Aps   16h 42m 43.3s  -76o 51' 40"   EW:      13.4        0.37142     :                   
 30238    IU     Aps   16h 53m 38.5s  -80o 55' 54"   EW       14.2        0.3046                          
 30242    IY     Aps   16h 54m 11.0s  -74o  2' 49"   EW:      12.7        0.3422      :                   
 30247    KN     Aps   17h  7m 16.4s  -74o 11' 17"   EA       14.12       2.851103                        
 30255    KV     Aps   17h 17m 45.4s  -76o 21' 46"   EB       13.63       0.738365                        
 30262    LN     Aps   17h 43m 56.1s  -78o 28' 45"   EW       13.1        0.474137    :                   
 30263    LO     Aps   17h 47m 10.2s  -77o 37' 20"   EB       11.18       1.331205                        
 30275    MM     Aps   15h 58m  7.2s  -72o 18' 48"   EA       12.32       3.7300                          
 30280    MR     Aps   17h  7m 57.5s  -73o 43' 35"   EB       10.58       0.5278636                       
 30295    NT     Aps   14h 42m 42.6s  -74o 18' 42"   EW        8.20       0.2947648       G3/G5V          
 30298    NW     Aps   14h 55m 38.5s  -79o 48' 21"   EB        9.10       1.0655586       F5IV/V          
 30305    OR     Aps   16h 16m 32.3s  -78o  8'  0"   LPB:      9.11       1.2223      :   B7III           
 30307    OT     Aps   16h 39m  9.3s  -75o 29' 19"   EA        8.00       2.426577        B9.5IV          
 30313    OZ     Aps   17h 32m 36.0s  -68o  4'  4"   EA        8.57      27.03726         A1V             
 30314    PP     Aps   17h 43m  4.7s  -70o 52' 22"   EA        9.70       4.2799          A3mA5-A8        
 30317    PS     Aps   15h 31m 11.1s  -78o 45' 11"   EB        7.86       1.086152        F3V             
 30318    PT     Aps   14h 15m 33.0s  -72o 17' 40"   EA       12.19       2.74188                         
 30319    PU     Aps   14h 37m 53.2s  -74o 21' 57"   EA       12.35       5.05085                         
 30320    PV     Aps   15h 11m 28.5s  -73o 25' 34"   EA        7.80      28.877           A9III/IV        
 30322    PX     Aps   16h 45m 29.9s  -76o 48' 19"   EB:      12.31       0.820805                        
 30324    PZ     Aps   17h 24m 47.0s  -69o  8' 48"   EA       11.50       5.3275                          
 30325    QQ     Aps   18h 17m  1.8s  -78o 10' 33"   EA       13.3       10.195                           
 30339    V0339  Aps   14h 27m 55.3s  -72o 52' 31"   EB       13.2        0.551208                        
 30340    V0340  Aps   14h 30m 36.4s  -73o 29' 46"   EA       13.3        2.7842                          
 30357    V0357  Aps   15h 31m 56.0s  -78o 23'  5"   EW       15.5        0.304568                        
========================================================================================================