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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).

Ara

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            
========================================================================================================
 60001    R      Ara   16h 39m 44.7s  -56o 59' 40"   EA        6.17       4.42522         B9Vp            
 60015    RW     Ara   17h 34m 49.2s  -57o  8' 51"   EA        8.85       4.3674535       A1IV            
 60025    SY     Ara   16h 35m 21.1s  -54o 45' 18"   EA       10.50       1.8566643       A               
 60036    UW     Ara   17h 47m 34.5s  -48o 44' 51"   EA        9.48       3.297015        A0V             
 60039    UZ     Ara   16h 36m 53.2s  -56o 18' 23"   EA       11.4        1.5999079                       
 60040    VV     Ara   16h 37m 16.2s  -53o 10' 51"   EA       13.2        1.00937                         
 60041    VW     Ara   16h 35m 59.4s  -56o 37' 11"   EA       13.4        3.71955                         
 60049    XX     Ara   16h 39m 26.7s  -59o 31' 49"   EA       13.6        9.8442                          
 60054    ZZ     Ara   16h 36m 29.7s  -51o 24' 37"   EA       12.7        1.79942                         
 60055    AA     Ara   16h 40m 28.6s  -56o 32' 23"   EA       13.0        8.5207                          
 60057    AC     Ara   16h 43m 21.4s  -56o 27' 18"   EA       13.1       16.4370                          
 60060    AF     Ara   16h 37m 16.8s  -55o 43' 57"   EA       13.6        0.844688                        
 60062    AH     Ara   16h 41m 57.9s  -53o 53' 39"   EA       13.0        1.00503                         
 60103    BZ     Ara   16h 50m 14.7s  -58o 45' 12"   RR:      14.5        0.2         :                   
 60125    CY     Ara   17h 14m 47.7s  -55o 45' 18"   EA       12.3        3.01482                         
 60184    FU     Ara   17h 33m 32.3s  -58o  9' 50"   EB:      10.30       0.864510                        
 60219    HS     Ara   17h 55m  3.6s  -56o 27'  4"   E        14.0        2.64564                         
 60236    IS     Ara   17h 17m 54.9s  -55o 14' 26"   EA       13.9        1.67                            
 60237    IT     Ara   17h 24m 58.2s  -59o 54' 25"   EB       11.9        0.528395                        
 60240    IW     Ara   17h 33m  1.4s  -58o 34' 31"   E        13.9                                        
 60248    KO     Ara   17h 46m 30.9s  -53o 52' 51"   EW       12.8        0.382562                        
 60264    LP     Ara   16h 40m  1.8s  -46o 39' 35"   EB       10.0        8.533069        B8              
 60266    LR     Ara   16h 53m 37.2s  -61o 35' 11"   EA       10.43       1.51955         B2              
 60269    LU     Ara   17h 23m 47.0s  -55o  3' 44"   EA       10.3        2.38003                         
 60275    MM     Ara   17h 47m 41.1s  -46o 30' 53"   EA       11.25       2.556502        A2              
 60310    OW     Ara   17h 56m 43.0s  -56o 16' 47"   EA       13.0        2.73006                         
 60336    V0336  Ara   17h 29m  6.0s  -61o 27' 24"   EA       12.1        3.031760                        
 60339    V0339  Ara   17h 49m 57.0s  -49o 29' 19"   EA       10.2        2.438853                        
 60343    V0343  Ara   16h 36m 35.3s  -58o 27' 37"   EA       15.0        1.412                           
 60349    V0349  Ara   16h 39m 22.6s  -60o 57' 42"   EA        8.58       2.651782        A5V             
 60360    V0360  Ara   16h 42m 27.1s  -58o  2' 38"   EA       13.6        2.605                           
 60361    V0361  Ara   16h 42m  4.4s  -54o 21' 37"   EA       13.1       12.595       :                   
 60362    V0362  Ara   16h 42m 47.3s  -56o 51'  2"   EA       15.1        2.785                           
 60368    V0368  Ara   16h 44m 14.1s  -55o 45' 54"   EA       14.2        3.562                           
 60370    V0370  Ara   16h 45m  1.5s  -58o  0' 56"   EA       15.5        2.5885                          
 60394    V0394  Ara   16h 52m  9.4s  -57o 18' 17"   EA       15.2        2.100                           
 60412    V0412  Ara   16h 57m 27.9s  -59o 25' 39"   EA       13.2        1.477                           
 60421    V0421  Ara   16h 58m 46.2s  -58o  9' 25"   EB       14.8        0.5724                          
 60440    V0440  Ara   17h  1m  7.5s  -56o 37' 42"   EA       14.1       12.99                            
 60442    V0442  Ara   17h  1m 33.9s  -58o 18' 34"   EA:      15.0        4.076                           
 60444    V0444  Ara   17h  2m  0.7s  -56o  6' 11"   EA       14.0        2.373       :                   
 60445    V0445  Ara   17h  2m 12.3s  -56o 43' 21"   EA       13.9        5.57                            
 60447    V0447  Ara   17h  2m 56.2s  -56o 23' 48"   EA       12.7        1.35225     :                   
 60454    V0454  Ara   17h  4m 11.7s  -54o 52' 31"   EB       13.2        0.81082                         
 60485    V0485  Ara   17h 10m 17.6s  -59o 46' 13"   EA       14.7        1.2264                          
 60489    V0489  Ara   17h 10m 42.5s  -56o  3' 44"   EB       12.1        0.640075                        
 60491    V0491  Ara   17h 11m  4.8s  -56o 22' 26"   EB       12.2        0.940097                        
 60492    V0492  Ara   17h 11m 24.4s  -57o  0' 54"   EW       14.0        0.6536                          
 60497    V0497  Ara   17h 13m  2.4s  -56o  3' 38"   EA       13.3        1.14085                         
 60502    V0502  Ara   17h 14m 28.2s  -54o 55' 29"   EA       13.3        2.41155                         
 60529    V0529  Ara   17h 29m  1.2s  -62o 58' 50"   EA       13.0        0.95197                         
 60530    V0530  Ara   17h 28m  0.2s  -49o 16' 37"   EA       12.00       3.6383                          
 60535    V0535  Ara   17h 38m  5.5s  -56o 49' 17"   EW        7.17       0.62930098      A8V             
 60536    V0536  Ara   17h 40m 14.4s  -53o 50' 32"   EA       11.7        2.374084                        
 60537    V0537  Ara   17h 48m  0.1s  -54o 42' 12"   EA        8.64       1.874351        B7IV            
 60539    V0539  Ara   17h 50m 28.4s  -53o 36' 45"   EA+LPB    5.71       3.169094        B2V+B3V         
 60562    V0562  Ara   17h 49m 23.3s  -55o 19' 15"   EA       13.7        3.08214                         
 60610    V0610  Ara   16h 52m 11.3s  -57o 15' 42"   EW        8.86       0.543159        F0V             
 60616    V0616  Ara   17h  7m  2.6s  -47o  0' 11"   EB        8.15       4.99525         B3III           
 60620    V0620  Ara   17h 47m 13.2s  -56o  5' 58"   EA        9.9        3.10993         B9III           
 60623    V0623  Ara   16h 37m 11.2s  -57o 27' 49"   E        14.0        1.7188                          
 60651    V0651  Ara   16h 43m 55.5s  -56o 52'  2"   EW       14.6        0.27706                         
 60653    V0653  Ara   16h 45m  4.3s  -54o 58' 55"   EW       12.5        0.300746                        
 60658    V0658  Ara   16h 46m 29.1s  -61o 33'  5"   EW:      15.4        0.6276                          
 60659    V0659  Ara   16h 46m 31.4s  -61o 26'  4"   EW       13.9        0.29188                         
 60668    V0668  Ara   16h 50m  3.6s  -62o 40' 31"   EW       13.3        0.6014                          
 60700    V0700  Ara   16h 55m 37.1s  -56o 58'  3"   EW       15.1        0.6256      :                   
 60704    V0704  Ara   16h 56m 16.9s  -55o 27' 58"   EA       12.9        1.3277                          
 60705    V0705  Ara   16h 57m 15.4s  -60o  8'  7"   EW       13.9        0.9264                          
 60718    V0718  Ara   17h  3m 10.8s  -63o 34' 53"   EA       14.0        3.064                           
 60722    V0722  Ara   17h  2m 59.6s  -57o  6' 42"   EA        9.96       0.988918                        
 60728    V0728  Ara   17h  4m 41.8s  -55o 23' 19"   EW       13.0        0.73464                         
 60760    V0760  Ara   17h 49m 30.5s  -48o 26' 43"   EA       12.09       5.5851                          
 60781    V0781  Ara   17h  7m 13.9s  -56o 56' 14"   E        14.5        0.30875     :                   
 60783    V0783  Ara   17h  9m 52.2s  -58o 43' 11"   EB:      13.8        0.4641                          
 60789    V0789  Ara   17h 12m 34.2s  -61o 19' 37"   EW       14.0        0.7622                          
 60790    V0790  Ara   17h 15m 21.6s  -55o 32' 16"   EW       14.2        0.6836                          
 60791    V0791  Ara   17h 16m 35.9s  -60o 21'  0"   EW       12.5        0.363643                        
 60792    V0792  Ara   17h 16m 16.5s  -56o  7' 27"   EB       14.7        0.5967      :                   
 60824    V0824  Ara   17h 17m 25.5s  -66o 57'  4"   RS        6.63       1.681652        G5IV+K0V-IV     
 60870    V0870  Ara   18h  8m 22.7s  -56o 46'  2"   EW        9.00       0.399773        F8              
 60871    V0871  Ara   16h 37m 23.3s  -48o 42' 11"   EA       10.97       9.4166                          
 60878    V0878  Ara   16h 49m 48.8s  -47o  7' 46"   EW:       8.00       0.770478        B3II/III        
 60881    V0881  Ara   17h 41m 55.0s  -45o 34' 16"   EA       10.14       2.41887         F8              
 60882    V0882  Ara   16h 39m 56.4s  -61o  9' 28"   EA        7.61      20.9659          A2IV            
 60883    V0883  Ara   16h 51m 45.1s  -50o 17' 47"   EA        8.55      61.874           ApSi            
 60884    V0884  Ara   17h  2m 41.0s  -58o 54' 20"   EA        9.20      15.4908          B8II/III        
 60885    V0885  Ara   17h  3m 59.7s  -63o 24' 36"   EB       13.37       0.52382                         
 60887    V0887  Ara   17h 27m 10.1s  -57o 11' 44"   EB:      13.6        0.55277                         
 60889    V0889  Ara   17h 39m 42.0s  -52o 38'  3"   EA       11.27       1.05333                         
 60891    V0891  Ara   17h 41m 50.2s  -51o 53' 36"   EC       12.4        0.524694                        
 60892    V0892  Ara   17h 43m 27.5s  -52o 21' 43"   EA       11.41       3.14535                         
 60893    V0893  Ara   17h 47m  3.3s  -46o 33' 50"   EA       13.4        5.6303                          
 60894    V0894  Ara   17h 48m 30.3s  -51o 13' 36"   EA       12.25       1.65552                         
 60896    V0896  Ara   18h  6m 16.7s  -56o  2' 13"   EA       13.5        0.96025                         
========================================================================================================