Astronomical and Nautical Collections, 463 



Egyptian year 

 of Nabonassar. 



the equinox. The time must therefore have been Alexandrian, 

 that is, 125 days later, or ^ + 477y— 121*. 



=:^ + 476y+244^ 



and the sun must have been behind Venus. The other obser- 

 vations of Thius are probably recorded in the same time. 

 1245, Pachon (IX.) 6, (Halma, Vol. 3. p. 10.) Heliodorus ob- 

 served, in the 214th year of Diocletian, the 6-7 Pachon, the 

 second hour of the night, Mars in perfect contact with Jupiter. 

 Tiie interval from the epoch was 1244y and either 245.33*. or 

 375.33*. E. T. ^ +498y -38.1*. 



or A.T. ^+498y+91.9*. 



1250, Mechir (VI.) 27, (Halma, Vol. 3. p. 10.) Heliodorus ob- 

 served in 219 of Diocletian, an occultationof the planet Saturn 

 by the moon, the 27-8 Mechir, a little after the 4th hour of 

 the night, the middle being about 5 hours after sunset : the 

 emersion was at the middle of the enlightened part of the moon. 



Either E. T. © + 503y- 156.3*. 

 orA. T. ^(^ + 503y- 24.3*. 



1256, Thoth (I.) 30, (Halma, Vol. 3. p. 11.) Thius observed the 

 passage of Jupiter 3 digits to the North of Regulus, the 225th 

 of Diocletian. The 133 days of intercalation make this the 

 163d day of the old Egyptian year, and the equinoctial date 



^ + 509y- 182.0*. 



1256, Phamenoth (VII.) 15, (Halma, Vol. 3. p. 11.) Thius found 

 that the moon in 16^° B must have occulted the Hyades in the 

 day time : 225 of Diocletian. ^ + 509^ - 6.2*. 



1256, Payni (X.) 29, (Halma, Vol. 3. p. 11.) Thius observed, that 

 soon after sunset the planet Mars was near to Jupiter 1 digit 

 to the west : in the situation which the tables indicated for the 

 23d of the same month: the year was the 225th of Diocletian. 



^ + 510y 4-98.3*. 



1257, (Halma, Vol. 3. p. 12.) In 226 after Diocletian, Thius 

 found that Venus was 20 digits before Jupiter .... and on the 

 29th. . .10 digits behind him, in the same latitude : while the 

 ephemerides made the conjunction on the 30th : Bouillaud says, 

 of Mesore 



The year began in Alexandrian time ^-|- 51ly — 201*. 

 the 30th Mesore, noon, ^ + 51ly+158*. 



Dates /row the Catalogue o/* Olympiads. 



Olympiadic Solstitial date of 



year. th« beginning. 



In Scaliger's edition of Eusebius, there is a Ca- 

 talogue of the Olympiads, among the Collections 



2 H 2 



