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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).

Gem

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            
========================================================================================================
380004    U      Gem    7h 55m  5.2s   22o  0'  5"   UGSS+E    8.2      105.2          )  pec(UG)+M4.5V   
380013    RU     Gem    7h 26m 58.9s   21o 26'  7"   EA/DS    12.1        8.67080                         
380015    RW     Gem    6h  1m 28.1s   23o  8' 28"   EA/SD:    9.53       2.8654972       B5V+F5          
380016    RX     Gem    6h 50m 11.5s   33o 14' 21"   EA/DS     9.20      12.2086588       A3IIIea+K1:     
380017    RY     Gem    7h 27m 24.2s   15o 39' 35"   EA/DS     8.69       9.300567        A2Ve+K2IV       
380022    SV     Gem    6h  0m 41.0s   24o 28' 26"   EA/SD:   10.55       4.0061216       B3              
380024    SX     Gem    6h 28m 14.4s   20o 33' 50"   EA/SD:   11.0        1.366877        A0              
380031    TX     Gem    7h 36m  0.9s   16o 54' 29"   EA/SD:   10.0        2.800014        A2V+A7V         
380033    TZ     Gem    6h 37m 36.8s   19o 36' 27"   EA/SD    13.4        1.6777103                       
380045    WW     Gem    6h 12m  5.8s   23o 30'  3"   EB/KE     9.9        1.237811        B6              
380052    YY     Gem    7h 34m 37.4s   31o 52' 10"   EA/DM+    8.91       0.81428254      M1Ve+M1Ve       
380057    AC     Gem    6h 32m 16.8s   19o 50' 23"   EB/DM:   11.0        1.66182414      A0              
380059    AE     Gem    6h 47m 36.9s   28o 55' 14"   EA/DS    10.5       11.4568          B8              
380060    AF     Gem    6h 50m 39.6s   21o 21' 56"   EA/SD    10.54       1.24350348      A0              
380062    AH     Gem    6h 53m 17.9s   15o 59' 23"   EW/KW    14.4        0.3368                          
380063    AI     Gem    6h 54m  1.5s   16o  4' 47"   EB       13.8        0.7250                          
380065    AL     Gem    6h 57m 38.6s   20o 53' 33"   EA/D:     9.80       1.3913385       F5V             
380067    AN     Gem    7h  8m 57.5s   19o 48' 13"   EA/SD    13.2        2.032457                        
380075    AV     Gem    6h 42m  1.6s   13o 24' 51"   EA/SD    12.4        1.2216548                       
380078    AY     Gem    6h 31m 56.2s   19o 40' 12"   EA/SD:   10.8        3.0536498       A0              
380079    AZ     Gem    6h 34m 33.4s   14o 28' 20"   EB/KE:   11.8        1.006183        A-F             
380082    BD     Gem    6h 34m 43.1s   15o 34' 54"   EA/SD:   11.9        1.616727        A               
380085    BG     Gem    6h  3m 30.7s   27o 41' 51"   RV:      13.6       60.          :                   
380086    BH     Gem    6h  4m 39.2s   26o 25' 18"   EA/SD    13.6        6.24958                         
380092    BO     Gem    6h 25m  1.3s   17o 58' 13"   EA/SD    11.3        4.06860         A2              
380096    BS     Gem    6h 10m 18.4s   22o 45' 12"   EA/SD    14.7        1.050350                        
380097    BT     Gem    6h 11m 41.1s   23o 19' 40"   EA/SD:   13.9        1.2369358                       
380111    CK     Gem    6h 30m 37.1s   19o 38' 28"   EA/SD    13.2        1.412916                        
380113    CM     Gem    6h 31m 35.3s   17o 54' 24"   EB/KE    14.8        1.403507                        
380116    CP     Gem    6h 33m 41.7s   19o 29' 36"   EA/SD    13.7        2.4022685                       
380121    CU     Gem    6h 37m 22.8s   21o 44' 30"   EA       13.6        3.030008                        
380122    CV     Gem    6h 39m 21.9s   21o 10' 38"   EA/SD    14.9        1.848381                        
380123    CW     Gem    6h 39m 58.9s   21o 52' 34"   EA/SD    12.3        1.678148                        
380124    CX     Gem    6h 40m  3.8s   21o 49' 19"   EA/SD    12.0        2.1636985                       
380127    DD     Gem    6h 43m 23.6s   19o 14' 53"   EA/SD    13.2        3.80208                         
380130    DG     Gem    6h 49m 25.1s   18o 37' 44"   EA       12.5        3.13152                         
380138    DP     Gem    6h  2m 24.4s   27o 24' 53"   EW       13.4        0.5584                          
380140    DR     Gem    6h  3m 23.1s   24o  3'  3"   EW:      14.9        0.7133      :                   
380144    DV     Gem    6h 26m 58.3s   18o 39' 59"   EA       15.5        4.40042                         
380150    EF     Gem    6h 51m  1.8s   17o 29' 55"   EA/SD    12.6        6.10264                         
380151    EG     Gem    6h 57m 51.9s   13o  8' 24"   EA/SD    12.2        1.273392                        
380155    EL     Gem    6h 29m  8.0s   20o 48' 43"   EA/KE:   12.8        1.4283286                       
380157    EN     Gem    6h 33m 53.9s   18o 41' 18"   EB/KE    13.6        1.2076274                       
380162    ES     Gem    6h 38m 15.9s   17o 23' 40"   EA/SD:   15.2        1.661124                        
380164    EU     Gem    6h 39m 42.0s   17o 11' 32"   EA/DS:   13.7       52.2665                          
380168    EY     Gem    6h 45m 32.5s   17o 13' 31"   EB/KE    12.8        0.941143                        
380171    FG     Gem    6h 47m 49.6s   16o 51' 48"   EA       11.6        0.819129                        
380178    FO     Gem    6h 53m 28.5s   12o 53' 49"   E/SD     14.7        0.6956                          
380180    FQ     Gem    6h 56m 24.1s   17o 58' 13"   EA       13.0        2.88471                         
380182    FS     Gem    6h 57m 21.2s   16o 30' 14"   EA/SD    13.7        4.32653                         
380183    FT     Gem    6h 57m 24.6s   13o 42'  6"   EW       13.5        0.587612                        
380195    GM     Gem    7h  5m 29.8s   10o 39' 36"   EA       13.1        1.35967                         
380198    GP     Gem    7h  9m 29.2s   12o 58'  4"   EB/DM:   13.1        1.594736                        
380200    GR     Gem    6h 23m 20.3s   20o 49' 58"   EB       15.4        0.5274471                       
380204    GV     Gem    6h 59m 57.4s   14o 16' 35"   EA       14.9                                        
380205    GW     Gem    7h 52m 29.0s   27o  9' 16"   EB/SD    10.48       0.659444013     A5              
380206    GX     Gem    6h 46m  9.1s   34o 24' 53"   EB/D:    10.9        1.35003708      G5              
380208    GZ     Gem    6h 24m  6.8s   18o 42' 11"   EA       13.6        0.612645                        
380209    HH     Gem    6h 37m  6.9s   13o  8' 47"   EB/D     13.6        2.53048                         
380210    HI     Gem    7h 18m 14.4s   30o 38'  9"   E        12.0                        G-K             
380218    HR     Gem    6h 12m 13.3s   24o 42' 43"   EA/SD    11.4        1.068963                        
380221    HU     Gem    6h 27m 24.6s   23o 49' 31"   EA/SD:   15.7        1.70026     :                   
380225    HY     Gem    6h 33m 23.0s   22o  7' 20"   EW/KW    16.7        0.3342                          
380230    IM     Gem    6h 40m 23.5s   21o 43' 35"   EA/SD    15.2        1.427281                        
380231    IN     Gem    6h 40m 50.9s   17o 30' 57"   EA/SD    15.0        1.131194                        
380233    IP     Gem    6h 44m 54.0s   22o 16' 35"   EB       13.8        2.348980                        
380244    KK     Gem    6h 30m 47.4s   18o 32' 41"   EA       13.5                                        
380246    KM     Gem    6h 34m 31.2s   19o 58' 29"   EA       13.5        0.95422                         
380250    KQ     Gem    6h 43m 47.4s   15o 54' 21"   EB/KW    14.0        0.4079925                       
380254    KU     Gem    6h 45m 50.5s   17o  1' 35"   EA       15.2        6.15396                         
380255    KV     Gem    6h 47m 12.6s   15o 43' 34"   RRC:     12.4        0.2185467                       
380257    KX     Gem    6h 51m 48.9s   15o 38' 56"   EA       16.0        2.93091                         
380258    KY     Gem    6h 52m 39.5s   18o  2' 15"   EA/DS    12.7       12.3317                          
380261    LM     Gem    7h  5m  5.7s   10o 36' 46"   EA/SD    15.2        3.68853                         
380263    LO     Gem    6h  4m 11.7s   25o 20'  0"   E        11.5                                        
380264    LP     Gem    6h  5m  5.1s   26o 40' 53"   EA/SD    12.5        6.63126                         
380274    LZ     Gem    6h 44m  6.0s   14o 32' 23"   E        15.4                                        
380275    MM     Gem    6h 45m 27.5s   17o 48' 38"   EA/SD    14.9        5.90324                         
380276    MN     Gem    6h 46m 10.7s   14o 47' 53"   EA/SD    15.3        3.78067                         
380279    MQ     Gem    6h 53m 39.4s   15o 19' 56"   EA/SD:   15.3        3.81989                         
380280    MR     Gem    6h 55m 24.2s   16o 17' 19"   E:       14.4                                        
380283    MU     Gem    6h 59m 24.2s   14o  4' 51"   EB       14.5        0.726200                        
380288    MZ     Gem    7h  4m 35.3s   10o 42' 13"   EA/SD    16.5        1.290032                        
380290    NO     Gem    7h  5m 30.2s   10o 32' 23"   IS:      13.9                                        
380305    OR     Gem    6h 44m 47.6s   21o 26' 39"   EA:      13.5                                        
380310    OW     Gem    6h 31m 41.8s   17o  4' 56"   EA/GS:    9.0                                        
380320    PV     Gem    6h 14m  8.9s   23o 59' 11"   DSCTC     7.58                                       
380328    QT     Gem    6h 48m 16.5s   14o 35' 33"   EB        7.66                                       
380331    QW     Gem    6h 50m 46.1s   29o 27' 11"   EW       10.34                                       
380337    V0337  Gem    7h  2m 38.3s   13o 46' 59"   EA:       8.52                                       
380339    V0339  Gem    7h 18m 51.5s   29o  6'  3"   E:        8.94                                       
380345    V0345  Gem    7h 38m 30.2s   33o 42' 42"   DSCTC:    7.82                                       
380367    V0367  Gem    6h 46m 43.6s   20o 53' 22"   EA       11.20                                       
380372    V0372  Gem    6h 50m 55.8s   22o 29' 22"   EB       12.5        0.56914                         
380373    V0373  Gem    7h 11m 55.3s   23o 24' 56"   EB        9.26       1.60498         F8              
380375    V0375  Gem    7h 22m 46.0s   17o  2' 28"   EB       12.7        0.65264                         
380380    V0380  Gem    6h 16m 12.8s   25o 39' 56"   EW       13.15       0.336611                        
380382    V0382  Gem    6h 44m 14.5s   16o 24'  4"   EA       10.22       1.446303        F8              
380383    V0383  Gem    6h 47m 42.1s   23o 56' 12"   EA       12.78       0.757285                        
380386    V0386  Gem    7h  2m 49.6s   17o 20' 27"   EA       12.24       3.30831                         
380388    V0388  Gem    7h 12m 14.8s   18o 23' 50"   EB       12.33       0.605946                        
380389    V0389  Gem    7h 21m  3.3s   25o 40'  8"   EA        8.74       1.04776         A2              
380390    V0390  Gem    7h 47m  3.1s   14o 53' 23"   EA       11.32       2.14948         F0              
380396    V0396  Gem    6h 20m  0.7s   26o 20' 59"   EA       10.06       5.4966          A2              
380400    V0400  Gem    6h 37m 36.0s   17o 47' 33"   EA       11.32      11.3053          A0              
380401    V0401  Gem    6h 40m 16.1s   20o 28' 44"   EA       12.45       2.19763                         
380402    V0402  Gem    6h 42m 17.4s   20o 16' 48"   EW       11.72       0.399248                        
380404    V0404  Gem    6h 47m  2.8s   15o 37' 23"   EW       12.4        0.3487050                       
380405    V0405  Gem    6h 47m  7.9s   15o 38' 37"   EW       10.88       0.4621114                       
380408    V0408  Gem    6h 50m  7.3s   16o 30' 25"   EA       11.53      38.044                           
380409    V0409  Gem    6h 53m 23.5s   19o 10' 24"   EB:      13.6        0.5997                          
380410    V0410  Gem    6h 54m  8.1s   17o  2'  3"   EA       10.77       3.47041         A5              
380414    V0414  Gem    6h 54m 54.3s   18o 12' 50"   EB       10.61       1.47597         A2              
380415    V0415  Gem    6h 55m 57.5s   15o 35' 33"   EW       12.4        0.350606                        
380416    V0416  Gem    6h 59m 47.3s   22o 29' 49"   EW       12.7        0.256250                        
380417    V0417  Gem    6h 59m 48.4s   27o 41' 59"   EW:       9.80       0.39331         G5              
380421    V0421  Gem    7h 12m  7.3s   25o 57' 50"   EB:      15.0        0.42310                         
380422    V0422  Gem    7h 12m 41.7s   16o  5'  5"   EA        8.15       7.5424          F2V             
380425    V0425  Gem    7h 18m 32.9s   14o 59' 44"   EA       12.6        4.24211                         
380428    V0428  Gem    7h 23m 25.7s   26o  7' 32"   EB       10.93       0.491507        K               
380435    V0435  Gem    7h 54m 57.7s   21o 54'  9"   EW       14.2        0.3365                          
========================================================================================================