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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).

Lib

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            
========================================================================================================
490014    RV     Lib   14h 35m 48.4s  -18o  2' 12"   EA/D/R    9.02      10.722164        G5              
490019    SS     Lib   15h 49m  5.1s  -15o 32'  9"   EA/KE:   10.4        1.4379983       A5              
490032    TY     Lib   15h 21m 45.7s   -8o 14' 40"   EA/SD    11.2        3.2016741                       
490044    VZ     Lib   15h 31m 51.8s  -15o 41' 10"   EW/KW    10.13       0.35826334      F5              
490046    WX     Lib   15h  6m  4.2s  -27o 47' 21"   EA       12.1        0.4600045                       
490055    AA     Lib   15h 10m 16.0s  -25o  9' 57"   EA       13.0        2.20473                         
490059    AE     Lib   15h 11m 22.1s  -24o 36'  2"   EA/KE    12.7        1.20434                         
490100    BW     Lib   15h 31m 40.1s  -20o 27' 18"   E/SD:    13.4        0.93235                         
490153    EI     Lib   15h 34m 21.8s  -23o  0'  3"   EA/SD:    9.5        1.98691         A2              
490162    ES     Lib   15h 16m 48.6s  -13o  2' 21"   EB/KE     7.10       0.8830356       A2-3V           
490184    FU     Lib   16h  1m  0.9s   -9o 26' 36"   E        12.9        3.5600                          
490186    FW     Lib   15h 10m 25.3s  -21o 10' 31"   EB:/KE    9.8        1.495095                        
490192    GI     Lib   15h  4m 41.9s  -17o 25'  8"   EA       12.5                                        
490193    GK     Lib   15h 14m 37.2s  -15o 19' 36"   EA       12.8        1.13047                         
490204    GV     Lib   15h 54m 40.4s  -19o 15' 26"   E        13.9                                        
490207    GY     Lib   15h 24m 45.8s  -24o  4' 16"   EB:      12.3                                        
490229    IL     Lib   15h  8m 56.8s  -11o 47' 26"   E         7.64                                       
490235    IR     Lib   15h 29m 26.9s  -28o 50' 52"   EW:       8.72                                       
490237    IT     Lib   15h 33m 18.9s  -25o  1' 37"   EA:       9.01                                       
490239    IV     Lib   15h 37m 13.4s  -18o 20'  6"   E:        8.46                                       
490240    IW     Lib   15h 39m 38.1s  -27o 31' 28"   RR:       9.45                                       
490250    KQ     Lib   14h 51m 17.1s  -11o  9' 43"   EW       11.6                                        
490259    KZ     Lib   15h 55m 59.8s  -17o 11' 39"   EA       11.14       1.238751                        
490261    LM     Lib   15h  7m 52.9s  -27o 29'  8"   EA:      11.07       0.782983                        
490262    LN     Lib   15h  8m  6.3s  -29o 12'  9"   EA        8.54       1.66703         F0V             
490264    LP     Lib   15h 13m 38.5s  -20o 26' 32"   EA       11.58       2.44206         F6-F7           
490266    LR     Lib   15h 37m 43.7s  -26o 35' 50"   EA       13.1        0.590394                        
490268    LT     Lib   15h 44m 34.6s  -11o 53'  2"   EA       12.46      18.002                           
490269    LU     Lib   15h 50m  9.7s  -17o 23' 51"   EW       13.5        0.351671                        
490351    V0351  Lib   15h 50m 59.4s  -11o 39'  8"   EW       13.4        0.349737                        
499004    del    Lib   15h  0m 58.4s   -8o 31'  8"   EA/SD     4.91       2.3273543       A0IV-V          
========================================================================================================