CT Her Sp:  A3 V    
 
                                                         
System Type: EA/sd      
         
GCVS 4 Eph.   42522.932 1.786375      
       
--- Working ----        
Epoch =   42522.932      
Period =   1.7863748      
       
  Linear Quadratic      
LS Intercept =   0.002994358          
LS Slope =   -2.4384E-07          
LS Quadr term = na          
Sum diff² =        
New epoch =   50638.432        
New Period =   1.786374556        
       
New Ephemeris = 50638.432 1.786375      
       
Source Typ ToM error n' n O-C Whitney 1957 GCVS 4 IBVS nn AAVSO BBSAG Misc Lin Fit Q. Fit Date  
Whitney 1957   30904.424   -6503.96 -6504 0.0737 0.0736992   0.00458   6/28/1943 1957AJ.....62..371W  
BBSAG Bull.10   40184   -1309.32 -1309.5   0.3258   0.00331   11/23/1968   12   Peter H   B
BBSAG Bull...25   40804.427   -962.007 -962 -0.0124   -0.01244   0.00323   8/5/1970   8   Locher K   B
BBSAG Bull...30   41104.545   -794.003 -794 -0.0054   -0.00541   0.00319   6/2/1971   5   Locher K   B
BBSAG Bull.4   41506.473   -569.007 -569 -0.0117   -0.01174   0.00313   7/7/1972   13   Peter H   B
BBSAG Bull.4   41515.411   -564.003 -564 -0.0056   -0.00561   0.00313   7/16/1972   16   Peter H   B
BBSAG Bull.5   41540.418   -550.004 -550 -0.0079   -0.00786   0.00313   8/10/1972   10   Peter H   B
BBSAG Bull.9   41824.447   -391.007 -391 -0.0125   -0.01245   0.00309   5/21/1973   14   Peter H   B
BBSAG Bull.10   41849.463   -377.003 -377 -0.0057   -0.0057   0.00309   6/15/1973   11   Locher K   B
GCVS 4   42522.932 na 0 0 0   0   0.00299   4/20/1975  
BBSAG Bull.22   42551.507   15.99608 16 -0.007   -0.007   0.00299   5/19/1975   13   Peter H   B
AAVSO 2   42815.893   163.9975 164 -0.0045   -0.00447   0.00295   2/7/1976   17   G. Samolyk A
AAVSO 2   42815.909   164.0065 164 0.01153   0.01153   0.00295   2/7/1976   v 9   C. Hesseltine A
AAVSO 2   42908.797   216.0045 216 0.00804   0.00804   0.00294   5/10/1976   v 13   G. Samolyk A
BBSAG Bull.28   42953.441   240.9959 241 -0.0073   -0.00733   0.00294   6/23/1976   11   Peter H   B
AAVSO 2   42976.675   254.0021 254 0.0038   0.0038   0.00293   7/17/1976   v 8   D. Ruokonen A
MVS 8,25   43012.379   273.989 274 -0.0197   -0.0197 0.00293   8/21/1976   v   K
BBSAG Bull.29   43012.4   274.0007 274 0.0013   0.0013   0.00293   8/21/1976   9   Peter H   B
AAVSO 2   43260.715   413.0057 413 0.01021   0.01021   0.00289   4/27/1977   v 8   C. Stephan   A
IBVS 1502   43260.717 0.018 413.0068 413 0.01221   0.01221   0.00289   4/27/1977  
AAVSO 2   43260.724   413.0108 413 0.01921   0.01921   0.00289   4/27/1977   v 15   G. Samolyk A
AAVSO 2   43301.806   436.0082 436 0.01459   0.01459   0.00289   6/7/1977   v 13   G. Samolyk A
AAVSO 2   43703.739   661.0074 661 0.01326   0.01326   0.00283   7/14/1978   v 13   G. Samolyk A
MVS 8,136   43723.388   672.0068 672 0.01213   0.01213 0.00283   8/2/1978   v   K
AAVSO 2   44046.728   853.0102 853 0.0183   0.0183   0.00279   6/22/1979   v 12   G. Samolyk A
BBSAG Bull.44   44048.493   853.9983 854 -0.0031   -0.00308   0.00279   6/23/1979   v 11   Peter H   B
BBSAG Bull.44   44082.427   872.9943 873 -0.0102   -0.0102   0.00278   7/27/1979   v 7   Germann R   B
BBSAG Bull.44   44082.438   873.0004 873 0.0008   0.0008   0.00278   7/27/1979   v 10   Peter H   B
AAVSO 2   44096.726   880.9988 881 -0.0022   -0.0022   0.00278   8/11/1979   v 14   P. Goodwin   A
BRNO 23   44425.427   1065.003 1065 0.00584   0.00584 0.00273   7/4/1980   v   K
BRNO 23   44425.428   1065.004 1065 0.00684   0.00684 0.00273   7/4/1980   v   K
BRNO 23   44425.431   1065.006 1065 0.00984   0.00984 0.00273   7/4/1980   v   K
BBSAG Bull.49   44450.432   1079.001 1079 0.00159   0.00159   0.00273   7/29/1980   v 13   Peter H   B
AAVSO 2   44473.661   1092.004 1092 0.00772   0.00772   0.00273   8/22/1980   v 12   G. Hanson   A
AAVSO 2   44473.676   1092.013 1092 0.02272   0.02272   0.00273   8/22/1980   v 13   G. Samolyk A
BRNO 26   44734.466   1238.001 1238 0.002   0.002 0.00269   5/9/1981   v   K
BRNO 26   44734.475   1238.006 1238 0.011   0.011 0.00269   5/9/1981   v   K
BRNO 26   44734.482   1238.01 1238 0.018   0.018 0.00269   5/9/1981   v   K
AAVSO 2   44782.705   1265.005 1265 0.00888   0.00888   0.00269   6/27/1981   v 11   D. Williams   A
BBSAG Bull.57   44886.289   1322.991 1323 -0.0169   -0.01686   0.00267   10/8/1981   v 6   Germann R   B
BBSAG Bull.60   45077.456   1430.004 1430 0.00804   0.00804   0.00265   4/17/1982   v 8   Locher K   B
BBSAG Bull.60   45093.518   1438.996 1439 -0.0073   -0.00734   0.00264   5/4/1982   v 6   Locher K   B
BAV-M 34   45102.461   1444.002 1444 0.00379   0.00379 0.00264   5/12/1982   v   K
AAVSO 2   45141.777   1466.011 1466 0.01954   0.01954   0.00264   6/21/1982   v 8   D. Williams   A
AAVSO 2   45493.689   1663.009 1663 0.01571   0.01571   0.00259   6/8/1983   v 12   D. Williams   A
BBSAG Bull.67   45520.475   1678.003 1678 0.00609   0.00609   0.00259   7/4/1983   v 9   Locher K   B
BBSAG Bull.68   45597.293   1721.006 1721 0.00997   0.00997   0.00257   9/19/1983   v 7   Germann R   B
BBSAG Bull.70   45702.683   1780.002 1780 0.00386   0.00386   0.00256   1/3/1984   v 8   Locher K   B
BBSAG Bull.72   45822.376   1847.005 1847 0.00974   0.00974   0.00254   5/1/1984   v 6   Germann R   B
AAVSO 2   45836.66   1855.002 1855 0.00275   0.00275   0.00254   5/16/1984   v 10   G. Samolyk A
BRNO 27   45847.395   1861.011 1861 0.0195   0.0195 0.00254   5/26/1984   v   K
BBSAG Bull.72   45854.52   1864.999 1865 -0.001   -0.001   0.00254   6/3/1984   v 7   Locher K   B
BBSAG Bull.73   45856.338   1866.017 1866 0.03062   0.03062   0.00254   6/4/1984   v 6   Stoikidis N   B
BBSAG Bull.73   45888.457   1883.997 1884 -0.0051   -0.00512   0.00253   7/6/1984   v 8   Germann R   B
BBSAG Bull.73   45888.459   1883.998 1884 -0.0031   -0.00312   0.00253   7/6/1984   v 7   Locher K   B
BBSAG Bull.73   45888.468   1884.003 1884 0.00588   0.00588   0.00253   7/6/1984   v 14   Peter H   B
AAVSO 2   46195.728   2056.005 2056 0.00941   0.00941   0.00249   5/10/1985   v 10   S. Cook   A
BRNO 27   46197.501   2056.998 2057 -0.004   -0.00396 0.00249   5/12/1985   v   K
AAVSO 2   46211.796   2065 2065 3.8E-05   3.8E-05   0.00249   5/26/1985   v 15   P. Atwood   A
AAVSO 2   46229.667   2075.004 2075 0.00729   0.00729   0.00249   6/13/1985   v 9   S. Cook   A
BBSAG Bull.77   46240.375   2080.998 2081 -0.003   -0.00296   0.00249   6/23/1985   v 5   Stoikidis N   B
BBSAG Bull.78   46290.401   2109.003 2109 0.00455   0.00455   0.00248   8/12/1985   v 6   Peter H   B
AAVSO 2   46538.701   2247.999 2248 -0.0016   -0.00155   0.00245   4/18/1986   v 10   E. Mayer   A
AAVSO 2   46595.868   2280.001 2280 0.00146   0.00146   0.00244   6/14/1986   v 14   P. Atwood   A
BRNO 28   46624.456   2296.004 2296 0.00746   0.00746 0.00243   7/12/1986   v   K
BBSAG Bull.85   46917.424   2460.006 2460 0.00999   0.00999   0.00239   5/1/1987   v 8   Kohl M   B
AAVSO 2   46938.848   2471.999 2472 -0.0025   -0.00251   0.00239   5/23/1987   v 14   P. Atwood   A
AAVSO 2   46947.781   2476.999 2477 -0.0014   -0.00138   0.00239   6/1/1987   v 13   P. Atwood   A
BRNO 30   47267.546   2656.001 2656 0.00253   0.00253 0.00235   4/16/1988   v   K
AAVSO 2   47299.71   2674.007 2674 0.01178   0.01178   0.00234   5/18/1988   v 16   G. Samolyk A
BBSAG Bull.88   47326.503   2689.005 2689 0.00916   0.00916   0.00234   6/14/1988   v 8   Peter H   B
AAVSO 2   47356.881   2706.011 2706 0.01879   0.01879   0.00233   7/14/1988   v 13   P. Atwood   A
AAVSO 2   47442.616   2754.004 2754 0.0078   0.0078   0.00232   10/8/1988   v 8   M. Smith   A
AAVSO 2   47708.774   2902.998 2903 -0.004   -0.00404   0.00229   7/1/1989   v 11   P. Atwood   A
BBSAG Bull.92   47728.431   2914.002 2914 0.00283   0.00283   0.00228   7/20/1989   v 11   Peter H   B
BBSAG Bull.95   48012.469   3073.004 3073 0.00724   0.00724   0.00225   4/30/1990   v 7   Peter H   B
BBSAG Bull.95   48028.521   3081.99 3082 -0.0181   -0.01813   0.00224   5/17/1990   v 6   Locher K   B
BBSAG Bull.96   48094.637   3119.001 3119 0.002   0.002   0.00223   7/22/1990   v 7   Crumrine R   B
BBSAG Bull.98   48364.363 0.009 3269.992 3270 -0.0146   -0.0146   0.0022   4/17/1991   v 6   Locher K   B
BBSAG Bull.98   48439.419 0.006 3312.008 3312 0.01366   0.01366   0.00219   7/1/1991   v 9   Peter H   B
BBSAG Bull.98   48475.401 0.004 3332.15 3332   0.26817   0.00218   8/6/1991   10   Peter H   B
AAVSO 2   48478.706   3334 3334 0.00042   0.00042   0.00218   8/10/1991   v 15   C. Hesseltine A
AAVSO 2   48478.71   3334.002 3334 0.00442   0.00442   0.00218   8/10/1991   v 16   G. Samolyk A
BBSAG Bull.98   48489.426 0.006 3340.001 3340 0.00217   0.00217   0.00218   8/20/1991   v 11   Peter H   B
BRNO 31   48773.452   3498.997 3499 -0.0054   -0.00543 0.00214   5/30/1992   v   K
BRNO 31   48773.456   3498.999 3499 -0.0014   -0.00143 0.00214   5/30/1992   v   K
BBSAG Bull.101 48823.474 0.005 3526.999 3527 -0.0019   -0.00192   0.00213   7/19/1992   v 11   Peter H   B
BRNO 31   49073.456   3666.937 3667   -0.11239 0.0021   3/26/1993   v   K
BRNO 31   49073.577   3667.005 3667 0.00861   0.00861 0.0021   3/27/1993   v   K
BRNO 31   49100.38   3682.009 3682 0.01599   0.01599 0.0021   4/22/1993   v   K
BBSAG Bull.104 49116.433 0.006 3690.995 3691 -0.0084   -0.00839   0.00209   5/8/1993   v 12   Peter H   B
BAV-M 62   49116.4385   3690.998 3691 -0.0029   -0.00289 0.00209   5/8/1993   phe   K
BBSAG Bull.104 49166.467 0.005 3719.004 3719 0.00712   0.00712   0.00209   6/27/1993   v 9   Peter H   B
BBSAG Bull.105 49175.39 0.004 3723.999 3724 -0.0018   -0.00176   0.00209   7/6/1993   v 40   Paschke A   B
BBSAG Bull.106 49484.427   3896.996 3897 -0.0076   -0.0076   0.00204   5/11/1994   v 6   Locher K   B
BBSAG Bull.106 49484.435   3897 3897 0.0004   0.0004   0.00204   5/11/1994   v 8   Peter H   B
BBSAG Bull.107 49534.459 0.006 3925.003 3925 0.00591   0.00591   0.00204   6/30/1994   v 7   Peter H   B
BBSAG Bull.107 49550.522 0.004 3933.995 3934 -0.0085   -0.00846   0.00204   7/17/1994   v 6   Locher K   B
AAVSO 2   49557.668   3937.996 3938 -0.008   -0.00796   0.00203   7/24/1994   v 24   P. Goodwin   A
BBSAG Bull.107 49568.406 0.005 3944.007 3944 0.01179   0.01179   0.00203   8/3/1994   v 10   Peter H   B
IBVS 4383   49877.4356 na 4116.999 4117 -0.0015   -0.00145   0.00199   6/8/1995  
BBSAG Bull.110 49970.326 0.005 4168.999 4169 -0.0025   -0.00254   0.00198   9/9/1995   v 11   Peter H   B
BBSAG Bull.113 50295.424 0.009 4350.986 4351 -0.0248   -0.02475   0.00193   7/30/1996   v 4   Locher K   B
BBSAG Bull.114 50502.668 0.004 4467 4467 -0.0002   -0.00023   0.00191   2/23/1997   v 6   Locher K   B
BBSAG Bull.115 50563.407 0.005 4501.001 4501 0.00203   0.00203   0.0019   4/24/1997   v 8   Locher K   B
BBSAG Bull.115 50638.432 0.005 4543 4543 -0.0007   -0.00072   0.00189   7/8/1997   v 11   Peter H   B