A CATALOGUE OF OBSERVATIONS OF LUMINOUS METEORS. 331 
sin v — v Cosu 
Btexteny  Gaics + ="@04 x AA)? x full moon ; 
Light of Mars 
: ‘ : sin vy — v cosu 
Light of Saturn (without ring) = (7-46 x Daly * Peat: 
where v expresses, as before, the angular measure of the phase, A and A! the 
distances from the earth and sun found in the columns of the Nautical 
Almanack. 
(2.) At Minster, Dr. Heis, assisted by his pupils, observed on the evening 
of the 10th August, 1863— 
from 9" p.m. to 10" p.mw., 93 meteors. 
7 eee ge tha AA ge 
” 11 ”? 3? 12 39 166 9? 
fe LO a Sra. Lay : 
” 1 2 699 11 ” 39 ”? 
547 of these meteors were drawn upon four lithographed charts of the 
heavens. According to the custom of Dr. Heis, groups of parallel paths were 
represented by single lines, to the number of 68. These average courses 
being transferred to a 30-inch celestial globe and prolonged backwards, in- 
dicated, as in former years, the existence of three radiant points. 
From A, a= 45°, =56°, came 250 meteors =46 per cent. 
7 bao 08 6 — 595, 89 f =16 55 
” N, a= 15°, 5=86°, ” 87 ” =16 ” 
» Uncertain Radiants Pe ical = =22 a 
547 100 
Trains of these meteors (of great permanency) were observed in a comet 
seeker for nearly three minutes in the following order :— 
h mi s 
1. August 9. 9 47 40 = toa Ist mag.*, train 130 seconds. 
eee | 10. 9 3118 = 9 a 
o », 10. 9°50 35 = ¥ oF oe we 
Ber ys; 0-+L0.<10-38 26-<= ton eb mag*y,-~80 € 
eee 10. 1158 26 = oe teen cg: 
foe, | 10012. 1 53 = toa marty 168, 
fee ee 10.12 52 20 = 3 Jun) GO Et 
