Astronomical and Nautical Collections, 459. 



Egyptian year 



of Nabonassar. • 



881, Epiphi (XI.) 18, (vol. 2, p. 167, H.) Ptolemy observed, 

 in the 18th of Adrian, 18-19 Epiphi, in the morning, the pla- 

 net Mercury at his greatest elongation, in 18|° 8 , near the 

 Hyades, the distance to the east of the mean sun being 21j°. 



^ + 134y+74.26*. 



882, Athyr (III.) 14, (vol. 2, p. 172, H.) Ptolemy observed, in the 

 19th of Adrian, the 14-15 Athyr, Mercury at his greatest elon- 

 gation east, by comparison with Regulus, in 20° 12' tt^, at the 

 distance of 20^ 3' from the mean sun. ^ + 135y-170. 18*. 



882, Choeac (IV.) 2, (p. 255, H.) Ptolemy observed an eclipse 

 of the moon, in the 19th of Adrian, the 2-3 Choeac, of 10 di- 

 gits on the northern limb, the middle an hour before midnight. 



^-M35y-152,23^ 



882, Pharmuthi (VIII.) 6, (vol. 2. p. 214, H.) Ptolemy ob- 

 served an opposition of Mars, the 6-7 Pharmuthi, 3 hours 

 before midnight, in SI 28° 50'. ^-fl35y-28.31^ 



882, Pachon (IX.) 19, (vol. 2, p. 173, H.) Ptolemy observed 

 Mercury at his greatest elongation, on the 19th of Pachon, in 

 S 4° 20' ; by comparison with the Hyades: the distance from 



the mean sun being 23j°. ^ -1- 135y+ 14 . 81"*. 



883, Athyr (III.) 13, (p. 332, H.) Ptolemy observed the moon's 

 transit in the 20th of Adrian, the 13th Athyr, just before sunset, 

 5h. 50m. after noon : the altitude of her centre being 50° 55'; 

 whence the parallax is found 50' 55" : the interval from the 

 epoch was apparently 882y. 72d. 5h. 50m. ; but correctly 

 5h. 20m. 0-f 136y-171.69*. 



In this computation the latitude of Alexandria is made 

 30° 58' instead of 31° 12': and it is inconceivable how an 

 error of such magnitude can have been committed by astrono- 

 mers so numerous and so accurate as those of the school of 

 Alexandria. 



883, Pharmuthi (VIII.) 19, (p. 255, H.) Ptolemy observed a 

 lunar eclipse the 20th of Adrian ; the middle at four hours after 

 midnight of the 19-20 Pharmuthi : the magnitude 6 digits, on 

 the northern Hmb. ^-|-I36y- 15^26^ 



883, Mesore (XII.) 24. (p. 270, B. vol. 2, p. 268, H.) Ptolemy 

 observed an opposition of Saturn, the 20th of Adrian, 24 Me- 

 sore, at noon, in \S 14° 14'. © -l-136y+109.07^ 



884, Paophi (II.) 13, (vol. 2, p. 244, H.) Ptolemy observed, in 

 the 21st of Adrian, an opposition of Jupiter, the 13-14 Paophi, 

 2 hours before midnight, in 7° 54' X- ©-f 136y+163.49^ 



884, Tybi (V.) 2, (vol. 2, p. 197, H.) Ptolemy observed, in the 

 21st of Adrian, the 2-3 Tybi, tlie greatest elongatioa of V^nus, 



