Astronomical and JVautical Collections, 445 



Egyptian year 

 ofNabonassar. 



Ideler makes the middle 48 minutes earlier than the re- 

 corded time, and the magnitude only IJ digit. (H. IV. 172.) 

 28, Phamenoth (V£l.) 15, 3jh. before midnight at Babylon, 

 somewhat more than 6 digits on the moon's northern limb were 

 eclipsed, (p. 95, B. p. 245, H.) The date is 176. 7d later 

 than that of the preceding observation, or ^ —719^+157.3^. 



Ideler finds the time, assigned to the middle, 1 2 minutes 

 too early. 



127, Athyr (III.) 27, 17h. true Alexandrian time, 16jh. mean 

 time, reckoned from the epoch of the tables, the middle of an 

 eclipse of 3 digits on the moon's southern limb was observed 

 at Babylon, (p. 125, B. p. 340, H.) Now 126 E. y. 86. 7^ 

 require a correction of 30.52<i, leaving 126^ 56. 18^, which 

 makes ^ -620>+25.82d. 



Ideler finds the middle Ih. 4m. earlier, and the magnitude 

 only IJ digit. 



The year was the 5th of Nabopolassar, consequently the 1st 

 of Nabopolassar was the 123rd of Nabonassar. 



225, Phamenoth (VII.) 17, 1 hour before midnight at Babylon, 

 the moon was ecHpsed half a diameter on the northern limb, 

 (p. 125, B. p, 346, H.) For 224 E. y. 6m. 14 days, the 

 correction is 54 . 24^^, leaving ] 42 . 16 : ^ - 522y+ 1 1 1.80d. 



Ideler makes the time of the middle 1 IJh. ; the magnitude 

 as observed. 



This year was the 7th of Cambyses; whence the 1st of 

 Cambyses was the 219th of Nabonassar. 



246, Epiphi (XI) 28, lOjh., Alexandrian time, the moon eclipsed 

 5 of a diameter on the south side, according to the records 

 employed by Hipparchus : the moon being near the apogee. 

 The correction is 59 . 56^, for 246 E. years, of which the inter- 

 val wants 37 . 36^. ^ - 500^— 127 . 28^. 



P. 102, B. p. 269, H. Ptolemy observes that the date is 

 218 E. y. 309d. 23h. 12m. after the eclipse in the second 

 yearof Mardoc Empadns. Ideler finds the middle 12 minutes 

 later than the observation, and the magnitude 2 digits only. 



The year was the 20th of Darius, the successor of Cam- 

 byses ; whence the last of Cambyses must have been the 226th 

 of Nabonassar, which was also the eighth of Cambyses. 



257, Tybi (V.) 3, lOh. 30m. true time at Alexandria, , or lOh. 

 15m. mean time reckoned from the epoch, the moon was 

 eclipsed 3 digits (p. 102, B. p. 267, H.) : the 31st Darius I. 

 Correction 61. 99d. ^ — 490y+30.09d. 



Ideler makes the middle 35 minutes earlier, the magnitude 

 1 digit (H. IV. p. 177). 

 APRIL— JULY, 1328. 2 G 



