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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).

Crv

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            
========================================================================================================
280006    W      Crv   12h  7m 34.4s  -13o  8' 59"   EB/KW:   11.16       0.38808083                      
280008    Y      Crv   12h 38m 10.4s  -15o  0'  0"   EW/KE    11.0        0.4948130       A0              
280009    Z      Crv   12h 29m 41.8s  -23o 38'  4"   EA/SD    14.   :     0.504754                        
280010    RR     Crv   12h 30m 26.9s  -17o 58' 53"   E/SD     11.1        5.158122                        
280014    RV     Crv   12h 37m 40.7s  -19o 34' 40"   EB/KE     8.60       0.7472521       F0+G0:          
280024    SX     Crv   12h 40m 15.0s  -18o 48'  1"   EW/KW     8.99       0.3166386       F8              
280040    VV     Crv   12h 41m 15.9s  -13o  0' 50"   EA        5.19                                       
280048    WZ     Crv   12h 44m 15.2s  -21o 25' 35"   EA       12.76       1.78878         F7+G            
========================================================================================================