Remarks on Ancient Eclipses. 441 



Before Date of Julian + Equated Corr. 



Christ. Eclipses. Equation. Time. Eclip' 



D. H. M. D. H. M. D. H. M. A.D.' 



31 O Aug. 20 setting 5 11 16 August 25 12 1794 

 29 ©Jan. 5 4 2 5 1138 Jan. 10 15 40 1796 

 28 ©June 18 23 48 5 11 49 June 23 23 48 1797 

 26 © Oct. 23 4 16 5 12 10 Oct. 28 16 16 1799 

 24 ©April 7 4 11 5 12 33 April 12 16 44 1801 

 16 ©Nov. 1 5 13 5 14 1 Nov. 7 19 14 1809 

 2 ©Feb. 1 20 8 6 16 35 Feb. 7 12 43 1823 

 In comparing the above historical dates with the equated 

 times, the calendar of the ancients appears to have diflfered up- 

 wards of five whole days from the astronomical time in the space 

 of about 750 years. The dates of the corresponding eclipses from 

 A.D. 1104 to A.D. 1823 are of three denominations in the 

 Tables : 1. Such as are set down prior to the correction of the 

 Gregorian calendar. 2. Such as are registered or computed ac- 

 cording to that calendar : and, 3. Such as come under the New 

 style. Those set down in the tables according to the New style 

 very nearly agree with the equated dates ; this is manifest by 

 inspection : those set down according to the Gregorian style do 

 not so well correspond; which may be attributed perhaps to the 

 defect of that calendar: but those eclipses set down prior to 

 the year 1582 require the equation of two whole periods to be 

 added, because they were recorded before any such correction 

 took place : which will discover two things necessary to be in- 

 quired into; first, whether the solar equation allowed for each 

 period is correct ; and, secondly, whether those eclipses have 

 been registered by the same or different calendars. 



Corr. 

 A.D. Date of Eclipses. Equated Time, Eelip^ 



D. H. Davs. D. H. D. H. A.C. 



1104 5 Mar. 13 3 A. + 6 Mar. 19 3 A. 19 10 34 721 

 1204 D April 15 12 39 + 6 April 2l 12 39 21 18 22 621 

 1302 D July 10 4 A.+6 July 16 4 A. 16 12 47 523 

 1323 ]) Nov. 13 2 A. + 6 Nov. 19 2 A. 19 12 21 502 

 1334 D April 19 10 33 + 6 April 25 10 33 25 12 12 491 

 1394 ©July 28 2 A. +6 Aug. 3 2 4 3 6 35 431 

 1400 }) Oct. 3 2 A. +6 Oct. 9 2 A. 9 6 45 425 

 1^01 ©Mar. 15 2 M. + 6 Mar.21 2 M. 20 20 17 424 

 1412 ]) Aug. 22 6M. + 6 Aug. 28 6 M. 27 10 15 413 

 1419 }) April 10 8 M. + 6 April 16 8 M. 15 8 50 406 



1421 ©Aug. 28 9M. + 6 Sept. 3 2 4 2 21 12 404 



1422 }) Aug. 2 11 A. +6 Aug. 8 1 1 A. 28 5 23 403 

 1431 ©Aug. 8 4 M. + 6 Aug. 14 4 M. 13 22 17 394 



1442 ]) Dec. 17 3 59 + 6 Dee. 23 3 59 22 19 6 383 



1443 )) June 12 2 A. + 6 June 18 2 A. 18 8 54 382 

 Vol. 55. No. 260. June 1820. S s A.D. 



