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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).

Vul

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            
========================================================================================================
880009    Z      Vul   19h 21m 39.1s   25o 34' 30"   EA/SD     7.25       2.454934        B4V+A3III       
880010    RR     Vul   20h 54m 47.6s   27o 55'  6"   EA       10.0        5.05070         A2              
880011    RS     Vul   19h 17m 40.0s   22o 26' 28"   EA/SD:    6.79       4.4776635       B4V+A2IV        
880025    SY     Vul   20h 36m 21.9s   23o 51' 51"   EA/SD    13.         7.80187                         
880040    VV     Vul   20h 57m 23.7s   27o 51' 23"   EA/SD    12.0        3.411361        A2/3V           
880043    VY     Vul   19h 48m 23.7s   20o 24'  6"   EB/SD:   14.2        0.8843484                       
880051    XZ     Vul   19h 29m 24.3s   27o 26'  5"   EA/SD:   11.3        3.089631        G0              
880056    AB     Vul   19h 53m 47.0s   28o 56' 56"   EA/KE:   12.4        1.4613343       A8:             
880058    AD     Vul   19h  4m  3.9s   24o 33' 31"   EA       12.8       10.426342        F7III           
880073    AT     Vul   19h 53m 58.5s   23o 33' 52"   EA/SD:    9.08       3.98039         B3              
880076    AW     Vul   20h 29m  1.7s   24o 48' 28"   EA/SD:   10.8        0.80645141      F0              
880077    AX     Vul   20h 33m 10.3s   24o 51' 56"   EA/SD:   11.0        2.0248386       A1V             
880078    AY     Vul   20h 35m 38.9s   22o 37' 27"   EA       11.3        2.4124468       F0              
880079    AZ     Vul   20h 30m 54.0s   25o 39'  5"   EA/KE:   11.8        1.1226255       A0              
880080    BB     Vul   20h 32m 19.5s   27o 39' 44"   E        12.5                                        
880083    BE     Vul   20h 25m 33.6s   27o 22'  9"   EA/SD     9.78       1.552044        A3V-A5V         
880085    BG     Vul   21h 19m 24.4s   22o  2' 41"   EW/KW    12.9        0.403252                        
880087    BI     Vul   21h 22m 48.0s   27o  1' 40"   EW/KW    14.15       0.251818                        
880088    BK     Vul   21h 25m 23.3s   27o 51' 19"   EW/KW    12.8        0.45347                         
880092    BO     Vul   19h 56m 29.1s   23o 54' 45"   EA/SD    10.5        1.945869        F0              
880093    BP     Vul   20h 25m 33.3s   21o  2' 18"   EA/SD    10.1        1.9403491       A7              
880094    BQ     Vul   20h 31m 19.2s   25o  0' 51"   EA/SD    11.9        4.4271          A0IV            
880096    BS     Vul   19h 37m 26.5s   21o 55' 50"   EB/KW    10.9        0.47597147      F2              
880097    BT     Vul   20h 23m  4.9s   27o 28' 39"   EA       11.8        1.141200        F8              
880098    BU     Vul   20h 46m 18.9s   28o 15' 44"   EA/SD    10.6        0.5689930       G0              
880105    CD     Vul   20h 25m 34.3s   26o 28'  6"   EB/SD    11.5        0.6837450       F0V             
880119    CS     Vul   19h 47m 24.3s   19o 40' 22"   EA       13.2        4.37767                         
880136    DN     Vul   20h 15m 43.7s   21o 57' 33"   EA       13.6        3.53078                         
880138    DP     Vul   19h 52m 18.0s   19o 39' 27"   EA       14.5        6.01793                         
880140    DR     Vul   20h 13m 46.9s   26o 45'  2"   EA/DM     8.65       2.2508645       B8              
880148    DZ     Vul   21h 10m  9.0s   25o 56' 23"   LB       12.6                                        
880149    EE     Vul   20h  4m  3.5s   28o 14'  1"   EA       14.9        2.76380                         
880158    EO     Vul   20h 21m  3.9s   27o 33' 53"   E        12.7                                        
880160    EQ     Vul   19h 58m 23.2s   28o  1'  8"   EA/DM:   11.79       9.297164        B8              
880161    ER     Vul   21h  2m 25.9s   27o 48' 27"   EW/DW/    7.27       0.69809409      G0V+G5V         
880164    EU     Vul   19h 50m 31.6s   22o 12'  5"   EB       12.9        0.88304718                      
880165    EV     Vul   19h 51m 38.4s   23o 53' 17"   EB/DM    11.5        2.82200         B1V:            
880167    EX     Vul   20h  4m 47.4s   22o 19' 22"   EA/DS    12.49      16.135485        ea:             
880168    EY     Vul   20h  7m 16.6s   24o 12' 16"   EA/SD    11.2        4.103052        A4              
880170    FF     Vul   20h 23m 13.0s   25o 42' 59"   E/KW     13.1        0.444986                        
880176    FM     Vul   19h 31m 47.0s   27o  8'  6"   EB/KE:   12.8        0.7846407       A3:             
880178    FO     Vul   19h 35m  3.4s   26o 34' 57"   EA       13.6        2.8388204                       
880179    FP     Vul   19h 35m 20.0s   27o 24' 54"   EB/SD    15.4        1.10455509                      
880180    FQ     Vul   19h 35m 36.6s   26o 17'  2"   EA/D     12.3        6.262398                        
880181    FR     Vul   19h 36m 24.8s   26o 45' 57"   EA       10.3        0.94185866      A2              
880182    FS     Vul   19h 36m 23.7s   27o 10'  8"   EA/DS    15.1       11.697248                        
880186    FW     Vul   19h 40m 51.3s   27o 13'  1"   EA/DM    12.7        4.526148                        
880189    FZ     Vul   19h 42m 11.4s   20o 34' 43"   EB/DM    13.2        2.4177487                       
880192    GI     Vul   19h 42m 37.6s   26o 38' 29"   EB       13.5        0.4814832                       
880196    GN     Vul   19h 46m 24.6s   27o 23' 26"   EA/DM    12.3        1.9724441                       
880197    GO     Vul   19h 46m 35.4s   27o 53' 58"   EA/KE:   13.2        1.00892787                      
880198    GP     Vul   19h 46m 56.9s   28o 51'  8"   EB/KE    10.7        1.0325031                       
880200    GR     Vul   19h 48m 11.3s   27o 37' 29"   EA/SD    13.2        1.3000937                       
880202    GT     Vul   19h 48m 55.0s   20o 56'  8"   EB       15.6       14.9910                          
880203    GU     Vul   19h 48m 57.1s   26o 23' 23"   EW       11.6        0.77422704                      
880204    GV     Vul   19h 49m 23.7s   20o 39' 14"   EA       14.1        1.01482                         
880210    HI     Vul   19h 53m 47.5s   28o 44' 17"   EB/KE    12.3        1.2937249                       
880211    HK     Vul   19h 54m 19.1s   28o 20'  8"   EA/DS    14.9       20.3607692                       
880216    HP     Vul   19h 59m  1.0s   26o 42' 14"   EA/SD    13.4        3.9827302                       
880219    HS     Vul   20h  2m 26.1s   22o 44' 41"   EW/KW    13.9        0.3320669                       
880230    IM     Vul   20h 43m  6.0s   22o 28' 55"   E        11.6                                        
880240    IW     Vul   19h 35m 33.5s   26o 38' 58"   EA/D     12.9        2.1378487                       
880247    KN     Vul   19h 55m 34.6s   27o 42' 21"   EW/KW    13.0        0.3573325                       
880277    MO     Vul   19h 42m 39.8s   19o 52' 59"   EB       14.4        4.92658                         
880290    NO     Vul   19h 34m 38.0s   20o 37' 14"   EW/KW    13.4        0.3707685                       
880291    NP     Vul   19h 34m 58.1s   20o 30'  3"   EA/SD    14.3        1.9056726                       
880329    QU     Vul   20h 26m 46.0s   27o 50' 43"   NA        5.2                                        
880384    V0384  Vul   21h  7m 48.4s   28o  5' 32"   EW       12.72                                       
880392    V0392  Vul   19h 34m  4.7s   24o 18' 37"   ACV:      9.99                                       
880394    V0394  Vul   19h 49m  2.7s   20o 25' 31"   E:        8.75                                       
880399    V0399  Vul   20h 25m 10.8s   21o 29' 19"   EA:       7.01                                       
880467    V0467  Vul   21h 17m 23.9s   21o 53' 34"   EB       12.44       0.427417                        
880491    V0491  Vul   19h 46m 22.7s   24o 37' 48"   EA        9.94       7.6699          B0.5V           
880495    V0495  Vul   19h 53m 45.3s   20o 30' 33"   EA        9.76       1.635135        B9              
880496    V0496  Vul   19h 53m 49.7s   23o 30' 40"   EW       11.90       0.301201                        
880502    V0502  Vul   20h 31m  1.0s   24o  2'  0"   EA       10.39       1.551913        A0              
880512    V0512  Vul   21h  3m 38.2s   21o 28'  8"   EA       12.20       4.38093