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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).

Tuc

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            
========================================================================================================
820005    V      Tuc    0h 51m 46.6s  -71o 59' 53"   EA/SD    10.60       0.87091649      B9/A2(IV)       
820057    AC     Tuc   23h 38m  2.6s  -59o 26' 29"   EA/SD    11.5        1.265829                        
820067    AN     Tuc   23h 30m 22.3s  -58o 25' 35"   EA/SD    10.2        5.46093         A5III(m)        
820070    AQ     Tuc    0h 17m 21.5s  -71o 54' 57"   EW        9.91       0.59484267      F3/5(+A)        
820107    CF     Tuc    0h 53m  7.8s  -74o 39'  6"   EA/RS     7.44       2.79765         F8V+K1IV        
820121    CU     Tuc    0h 37m 13.4s  -63o 49' 13"   EA        9.99                                       
820123    CW     Tuc    0h 48m 43.2s  -61o 43' 43"   ELL:      9.44                                       
820133    DK     Tuc   22h 27m 21.2s  -58o  0'  2"   E:        6.90                                       
820136    DN     Tuc   23h  7m 18.9s  -60o 52' 35"   E:        8.57                                       
820146    DX     Tuc   23h 57m 21.5s  -64o 14' 36"   EW:       9.63                                       
820153    EI     Tuc   22h 29m 12.5s  -56o 52' 12"   EA        9.53       3.64523         F0IV/V          
820154    EK     Tuc   22h 38m 51.8s  -60o 39'  9"   EB        9.71       1.23501         F6              
820155    EL     Tuc    0h  1m  4.3s  -66o 57' 43"   EW       14.5        0.3372                          
820156    EM     Tuc    0h  2m  8.2s  -66o 50' 40"   EW       12.05       0.326576                        
========================================================================================================