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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).

Hyi

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            
========================================================================================================
430008    Y      Hyi    0h 45m 50.7s  -78o 49' 17"   EA/SD    10.4        3.53597         A6V             
430012    RT     Hyi    1h 11m 12.6s  -79o 10' 39"   EW/KW    13.2        0.284038                        
430014    RV     Hyi    1h 20m 52.3s  -80o 19'  1"   EA       11.8        7.19505                         
430042    VX     Hyi    4h 14m 53.5s  -73o 21' 37"   EA/SD    11.9        3.2322          F4              
430055    AA     Hyi    0h 39m  2.4s  -76o 58'  8"   EA/KE:   12.0        1.150272                        
430082    BD     Hyi    0h 15m 27.9s  -76o 38'  5"   EA       12.8                                        
430114    CN     Hyi    2h 45m 37.0s  -71o 14'  9"   EW        6.68                                       
430125    CY     Hyi    3h  6m 17.2s  -68o 12' 30"   EW        9.3        0.41612         F7              
430131    DH     Hyi    1h 49m 13.3s  -63o 31'  0"   EA        8.45       7.43367         A2mA5-A7        
========================================================================================================