330 REPORT—1863. 
Taste III. 
5 ae =o eee 
=. atlas poe of Light of | Consump- | Weight of 
& 195/25 me % a {meteor atition of coal-| meteoric 
No. |S 2/8/53 re b id 1 mile /gasforlumi-| matter 
a) | or ng Thr compared) nous effect| arrested at 
E102 |2 S\azimuth,| alti- | 2 Hawkhurst. |" ¢o full jequalto that} 30 miles per 
ee |=  |W.fromS.) tude. moon. | of meteor. second. 
sec, S 6 cubic feet. | Ibs. oz. grs. 
1 | 41 | 1:0 | 41 218 40 | Altair 0:07 12°6 0 0 109 
2 | 48 | 1:4 | 34 222 40 | Altair ......... 0:07 163 0 0141 
3 | 84 |3°0 | 28 | 213 13 ,|. Jupiter.......... 8°27 4264°0 5 4 162 
4] 71 |1:7 | 38 249 42 .| Jupiter ......... 19°02 5560-0 814 0 
Bal eAG. | oneg llores 193 40 | Venus ......++ 13°70 2356-0 2 14 267 
6 | 26 | 1:0 | 26 234 6 |e Persei ...... 0:07 115 0 0 100 
7 | 38 |1:0 | 38 235 32 | Persel ...... 113 19:4 0 O 168 
8 | 39 | 1:3 | 30 262 TS) Festus! ccvacase on 5°16 1153-0 1 6 359 
9 | 90 |1°2 | 75 | 219 47 al. SITUS: 2... .6-+5 1:69 348-1 0 6 389 
TO, |46) | csay |) es 209 13. | Sirius .oc...00, 0°83 143:0 0 2 363 
11 | 54 |1°6 | 33 228 62 |aLyre  ...... 0718 48°7 0 0 421 
12 |100 | 174 | 71 220 AZ ASITIUS onsgcs=0 505 1:47 354°7 Dade 
13 | 48 | 1:5 | 32 215 26 | Venus ......... 4°85 1251°0 1 8 328 
14 | 18 |0°8 | 23 | 212 34 | a Persei ...... 0-02 35 0 0 29 
15 | 25 |0°5 | 50 216 29 | a@ Persei ...... 0:03 29 0 0 25 
LG AL |. .5ey| 05 238 2 | Cor Caroli 0-06 10-2 0 0 88 
17 | 34 233 33 | > Venus 23°55 4049-0 5 0 48 
18 | 31 232 9) )|gAdtair: acces en 0°13 22:3 0 0 193 
RO) BS} ccs cop 186 46 (| .SIIUS: jnccscscee 1:95 334°8 0 6 274 
20 | 69 | 1°8*| 38 241 1S) | SIUS. .2ovsesse 1°72 532°0 0 10 232 
From the additional Observations. 
3 j117 | 3:0 | 39 206 9 | Jupiter ....+.. 10°09 5207-0 (Tee dame 
10 | 42 | won | ove 208 1D) AiSirius: fgesccseh - 0°82 141:2 0 2 347 
12 | 86 | 174 | 61 223 40 | Sirius ......... lll 265°9 0 5114 
13 | 48 (15 | 32 216 1B de Venus, «..c..00s> 4°56 1175°0 1 7 109 
For future comparisons of the light of shooting-stars, Dr. Heis communi- 
cates the following light-ratios of Dr. Seidel, of Munich. 
@ Venus. Mean maximum light=38-920 x @ Lyre. 
y Jupiter. Ad » = 8237xa Lyre. 
3 Mars. » == 29385 xa Lyre. 
hh Saturn (without ring). br 
The mean light of the moon im any phase 
sin u—v COS v 
formula, L = —————— 
Tv 
of the bright lune, reckoned from the centre of the moon), 
The light of the planets, when not at greatest brilliancy, is also found by 
the formule (full moon=54,816 x a Lyre),— 
: sin v — v COS v 
DapWGjOl Vege. es cess ws = (7-8 x AAP 
i sin vy — v COS v 
= (661 x AA) * 
0-466 x a Lyre. 
is found from Lambert’s 
x mean maximum light (v the angular measure 
x full moon ; 
Light of Jupiter .......... 
. 
99 > 
* N.B. The original record 2-0 (re-estimated vivd voce 1:8) was muccoreee 10 (see 
Catalogue). 
