222 MONTHLY WEATHER REVIEW July 1939
POSITIONS AND AREAS OF SUN SPOTS-Continued POSITIONS AND AREAS OF SUN SPOTS-Continued
-
East
ern stand ard time
-
dOUr
Vi1.w
TOUI
No.
-
6541 6531 653!
654:
6.531
653(
6541
653!
6531
654:
6531
6541 6531
053:
654:
6541
6535 6544
653:
6Mi (9
6548 6646
6541
6539 6544
6535
6542
6547 6546 6545 8541 6539 6535 6542
6547 6548 6545 6541
6539 8535
6542
6547 6546 6545 6541 6539 6548
65.54 6547
6546
6549 6545
6541
6550
6547 6549 6545
6550
6547
(9 6549
8545
-
IPO
OUI
-
1'
I (
i
-
41
11 1 1:
1:
-
41
2:
l i
4:
4:
124
4:
3:
k
45
150
1
10 4c
12 5
al 30
118
1 1
12 35
10 9 15
83
8
1
28 26 10 4
2
79
1 4
20 I 1
1
1
38
2
3 1
4
19 2
31
6
8 3 36
53
1
4 1 3 34
43
-
1;
-
-
-
-
-
-
-
-
-
3Pot nun
1 2
7 1
4
14
3
49
1
4
5
5
6
11
4
37
7 2 2 2
10
1
2
1
2
29
3 12
4
3
8 15
1
2
1
49
-
-
-
-
Heliographic Heliographic
-
Dis-
tanc frou cen- tQr 0
disk
-
K
31
2(
11 21
6g
37
2i
12 1i 35
28 1 4
10
23
18 15 29 28
36 36
82
44 16 24
40 38
46
75 68 27 25 41 53
68
48 43
13
46 64 78 85
35 31
20 59 72 79
66 20 2s
12
33
72
54 7
11
46
42 9
23 24
58
-
Dis-
unci rom
er 01
iisk
?en-
-
83 32 3
7.3
3s 55 73
71 33 29 37
51
68
86
5s
2s
26 26
32
,50
73 65
sn
85 70 43
31
41
R4
83
78
30
-
Dif fer.
sue,
1n
On?
:ud
-
-4,
-31
-11
+a +6
-
-3 -1
+ +3'
-
-%
-I
+I1
+a
- 11
+I
+2:
+2' +3, +3:
-81
-41
+i
+21
+3r t 4 :
+3!
- 73
-6:
- 24
t3 +a& t 5 i
t a r
-48 -39
+3 t44 t 6 1
t 78
ts
-35
- 2.5
t 1 5 t 5 7 k70 178
-61
-20 - 14
-7
C30 170
- 48 -7
t 7 H 4
-33
-22
-56
%
-
y tudc
-
19; 211 21: 234
261 30s
(241
19; 21 1
22!
23:
26(
(2%
191
21c
2 z
23€
(?If
191
20%
223 225
231
230
(m i
108 148 192 210 225 226 234
(189
99
148 192 21 1
224
238
(172
101 110
152 193 21 1
227 234
(149
100 110 150 192 205
213
:135:
60 101 107 114
151 191
in7
:lac
59
100 114 151
107)
62
103 116 117 151
(95)
-
Lati
tudm
-
+? +1
+1' +1:
- 11
+I!
(+
+a +l' +1:
+I, - 1(
(+!
+'a +1:
+1: +1:
(+!
+'a f l ; -11
fl;
+2!
+I:
(+:
-1i
t l i -13
t 11
t 1 3
' f 5
+6 -14
-9
t l Q t 1 7
t l 7
t 1 3
:+5
+7 -13 -8
t M t 1 7 t 1 7
t 1 3
'+5
+7 -14
-8
1-19 k17 +4
$5
-22
+6 -16
-6 -9
k19
+5:
- 22
4-8 -5 -9
+5:
- 22
f 6 -15
-S -9
-c
ti
t 5 )
Area
of
spot or
grow
East- ern 3tand- cud time
-
h m 11 ?o
11 6
9 15
10 51
-
Dif- fer-
enca
longi
tude
1n
-
-83 -19 -9
+B +37 +.I3
+7l
-69
- 24
-4
+37 +50
+56
+s5
-5 i
-12 -5
+3 +15
+50 +63
4-64 +i3
-85 -67 -43
+14 +19
+29
+64
+77 +77
-
Lati- tude
-
0
+8 -22 -24
+6 -5
-3? -9
(+5:
+8 - 17
-23
+7 -4
- 33
-9
(f 6 1
+8 -17 -19 -20
- 23
t i -33 -3
- 30
(+e)
+14 -15
+8 - 22
- 19 -OR
+6 -39
-3
(+e)
-
>,n-
PI- .ude
359
63 73 105 119 125 153
+8?
0
45 65
106
119 125 154
(69
0
45
51
64
72
107 1 3
121
130
(57
318
336 0 57
62 72
107 I20 120
(43:
fount i'ilson roup No.
_.
6553 6552
6550 6547 6549 6551 6545
6553
6554
654i 6549 6551 6545
6550
6SS3
6554
65.55 6552
6550
6.547
6551 6549 6551
6.557 6556 6.553
4555
6552
6550 6547 6551
6549
Area
Of
spot or
group
7 6
36 73 73 48 145 824
1.975
630
6
36 61 36 436 533
1,738
5Ra
12 12 12 S i 4s 97 24 170
-
-
Observatory Date Date
1939 July 28.
July 29.
July 30..
July 31.
1939 July 16..
July 17--
July 18--
July 19--
July ZO--
July 2 L
July Z...
July 24--.
July 25-..
July 26. ..
July 27 ...
h r 11 3
10 5
8 3
10 4
8 4,
15 3.
9 1(
IO 3:
I1 4$
3 B
1 7
U. S. Naval.
DO.
hiount WII- son.
17. S. Naval.
,w: 10s
S i 3
24i
li
11
1,83c
63c 97
679
338 11
1,757
721 145 679 582
-
-
U. S. Naval.
Do.
Mount m i l - son.
U. S. Naval.
Mount Wil.
SOD.
U. S. Naval.
hlount Wil-
son.
U. R. Naval.
Do.
Do.
Do.
2.133
679 145
24
679 24 776
1.054
339
1%
582 12 48 145 48
24
6
1,398
-
2.327
48
97 727 145 36 679 776
2, 508
97
36 170 679 145 485
339
1,951
97 24
436 291 73
339 48
1,308
73 12 436 97 12
6
636
36 97
6 48 679 12
878
36 121
36 727
920
24 121 6 61
721
__
__
-
--
_.
-
Mean daily area for 30 days=2,169.
Not numbered. Plate quality: P, poor; F. fair; 0. good; 1'0, very good.
PROVISIONAL SUNSPOT RELATIVE NUMBERS FOR
JULY 1939
[Dependent alone on observations a t Zurich]
[Data furnished through the courtesy of Prof. W. Brunner, Eidgen, Sternwarte. Zurich Switzerland]
Mean, 29 days 98.6.
a=Passage of an average-sized group through the central meridlan.
b=Passage of a large group through the central meridian. c=New formation of a group developing into a middle-sized or large center of activity:
E, on the eastern part of the sun's disk; IV, on the western part; M, in the cantral circle
lnnl
ea9 ~---. d=Entrance of a large or average-sized center of activity oa the east limb.