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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).

Ret

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            
========================================================================================================
700004    U      Ret    3h 20m 38.0s  -59o  2' 23"   EW/KW    13.6        0.354956                        
700023    SW     Ret    3h 28m 20.1s  -64o 58' 38"   EW       13.0        0.52274                         
700037    UX     Ret    3h 57m 34.0s  -54o 21' 27"   EW        8.32                                       
700043    VY     Ret    3h 27m 16.8s  -61o 15' 33"   EA        7.89      14.21605         F5V             
700044    VZ     Ret    3h 28m 36.9s  -66o 55' 13"   EA/RS    10.85       2.31981         G5V             
700047    WY     Ret    3h 32m 19.2s  -63o 32' 34"   EA       13.8        0.553640                        
========================================================================================================