126 
THE YOUNG SCIENTIST. 
jupitek's satellites. 
Phenomena. 
Transit, ingress. 
Occult., disap. 
Transit, egress. 
Eclipse, disap, \ 
" reap. ) 
Transit, ingress. 
" egress. 
Eclipse, reap. 
Occult., disap. 
Eclipse, reap. 
Occult, " 
Transit, ingress. 
Eclipse, reap. 
Occult, disap. 
Transit, egress. 
Occult, disap. 
Saturn sets on the 10th at 9.18 eve.; 20th, 8.45 
eve.; 30th, 8.11 eve. He will be less than 1° 
south of the Moon on the 9th. 
Uranus passes the meridian on the 10th at 
10.8 eve. ; 20th, 9.28 eve., and 30th at 8.48 eve. 
ECLIPSE OF THE MOON, APKIL 22. 
The moon will be partially eclipsed on the 
morning of the 22d. This will be a very small 
eclipse, as only one- twelfth of the Moon's diam- 
eter enters the earth's shadow. The eclipse 
will not be visible east of the Mississippi Val- 
\ey, the Moon setting before the eclipse begins. 
bat. 
JJ. 
11. 
IyL. 
T 
1. 
Q 
O 
11 
17 eve. 
T 
1. 
A 
4 
Q 
O 
T 
1. 
0 
Q 
o 
q «< 
o 
TT 
11. 
c 
o 
Q 
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TTT 
111. 
7 
Q 
O 
TTT 
111. 
7 
11 
in " 
T 
1. 
1 0 
7 
to 
TT 
11. 
1/ 
Q 
V 
I 
12 
10 
1 *' 
l! 
13 
8 
27 " 
ni. 
14 
7 
38 " 
II. 
14 
8 
50 " 
III. 
14 
10 
30 " 
I. 
19 
9 
43 " 
I. 
20 
10 
23 " 
I. 
27 
9 
2 " 
I. 
28 
8 
30 " 
II. 
28 
9 
15 " 
ing node at the time of the eclipse, it will be ap- 
parent from the above diagram that the eclipse 
will be upon her upper or northern limb. At 
the next New Moon, or when the Moon is near 
Fig. 3. 
DIAGKAM or THE ECLIPSE OF APRIL 22, 
188?» 
the descending node at d two weeks later, an 
eclipse of the Sun will occur, of which an ac- 
count will be given in the Young Scientist. 
The earth's shadow first touches the Moon at 
If the full moon should occur at the time the ' a point 33° from the north point towards the 
Fig. 2. 
showing the position or the moon at the time of the eclipse of APEIL 22, 1883. 
Moon is at her node, then a total eclipse of the 
Moon must occur, and the further from the 
node the Moon is at the time of full, provided 
it is not over 12° from the node, the smaller will 
be the eclipse. 
As the Moon will be approaching her ascend- 
east, and the last contact occurs 4° from the 
north point towards the west. 
As the Moon passes from west to east through 
the earth's shadow, the eclipse must begin upon 
the east side of tiie Moon. 
The Moon will enter the earth's penumbra 
