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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).

UMi

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            
========================================================================================================
840006    W      UMi   16h  8m 27.3s   86o 12'  0"   EA/SD     8.51       1.7011576       A3              
840011    RS     UMi   15h 50m 49.4s   72o 12' 41"   EA/D/R   10.81       6.16862258      F8              
840012    RT     UMi   17h  4m  5.6s   80o 19' 45"   EA/SD    10.79       1.841962        F0              
840013    RU     UMi   13h 38m 56.8s   69o 48' 11"   EB/DW    10.0        0.52492618      F5              
840018    RZ     UMi   14h 54m 26.1s   86o 43' 38"   EW/KW    12.8        0.33735283                      
840028    TU     UMi   14h 55m 43.8s   76o 18' 24"   DSCTC     8.84                                       
840029    TV     UMi   15h  0m 59.7s   73o  3' 12"   EB        8.77                                       
840032    TY     UMi   15h 17m 57.5s   83o 51' 34"   EA        7.79                                       
840040    VV     UMi   12h 57m 34.6s   88o 57' 27"   EA        9.78       7.1520          A3              
840041    VW     UMi   15h 54m 46.8s   85o 40'  6"   EW       12.10       0.48885                         
840043    VY     UMi   17h 14m 14.0s   76o 42' 14"   EW       11.09       0.32540                         
840044    VZ     UMi   13h 23m 29.0s   74o 54'  9"   EA       13.1        0.62808                         
840054    ZZ     UMi   15h 36m 36.6s   69o 11' 21"   EA       11.25       3.20644                         
840055    AA     UMi   15h 46m 42.7s   81o 42' 31"   EA       12.39       1.46228                         
840057    AC     UMi   16h 13m 19.9s   81o 23' 35"   EA       12.65       0.643290                        
840059    AE     UMi   16h 46m  8.9s   83o 15' 33"   EA       12.55       1.64465                         
840064    AK     UMi   19h 40m 42.5s   86o 21'  9"   RRC:     12.87       0.268250                        
840065    AL     UMi   19h 57m 12.2s   86o 45' 26"   EW       12.35       0.47687                         
========================================================================================================