a lo 
‘ 
and Remarks for the Year 1822. 305 
the present year; and which of course may exhibit an oeculta- 
tion in some part of the world. It contains the same number 
of pages as the preceding. 
Daring the present and several of the following years, the 
cluster of stars called the Pleiades will present some singular 
facilities to the practical astronomer, on account of the moon’s 
nodes being so situated, that she will pass over this beautiful 
cluster every lunation; and hence Mr. Barty has introduced 
Jeaurut’s Catalogue of the 64 stars which compose it, into his 
third table, reduced to the first day of the present year. This 
catalogue contains the synonyms, the last. mentioned astrono- 
mer’s number and magnitudes of the different stars, their right 
ascensions in time and degrees, and their deelinations, The 
phenomenon above alluded to, will afford a very favourable op- 
portunity for enabling astronomers to illustrate the method pro- 
posed by Cacnont, for determining the figure of the Earth, by 
means of occultations of the fixed stars by the Moon*. This 
table is accompanied by a chart, exhibiting the several positions 
of the stars, with their comparative magnitudes. This beauti- 
ful cluster has at all times attracted the attention of astronomers, 
KepLer gave a chart of them in 1653; La Hire in 1693 ; 
Cassini and Miratpt in 1708, and Ouruirr in 1770. 
The fourth table occupies 17 pages, and will be found very 
useful, It contains the mean places of all the stars visible in 
this latitude, above the 5th magnitude, with their annual ¥aria- 
tions, deduced from the observations of Brapiey and Pazar, 
agreeably to the formula given by Besse in his Fundamenta 
Astronomia. 
The fifth table contains all those stars inserted in the preced- 
ing table, within 30° of*the equator, arranged in the order of 
their declinations. It occupies 3ix pages. 
The sixth table is devoted to the mean places of 36 principal 
"stars for January 1, 1822, being those which are more particu- 
larly recorded in observatories. Their right ascensions are re- 
corded, both according to M. Brssrx and Mr. Ponp. 
The seventh table contains the apparent places of the stars 
recorded in the preceding table, for every 10th day of the year; 
and from the differences being annexed, the value for any inter- 
mediate day may he readily deduced. This table has been 
* In the year 1819 Mr. Batty, with the same liberal spirit as led to the 
publication of the present tables, printed for gratuitous circulation, the 
able aid interesting Memoir of CaGnou on the Figure of the Earth. This 
Memoir appeared originally in the Transactions of the Italian Society 
(Memorie di Matematica e di Fisica della Societa Italiana, Tom. vi. V erona, 
1792). Although printed so many years ago, it does not appear to have 
attracted much attention, until the appearance of Mr. Bagxy's translation. 
Yy2 computed 
