136 
ANNUAL REPORT SMITHSONIAN INSTITUTION, 1919. 
Gravitational displacement. 
Coons nan er WH 
et et ee 
on & © 
Sun’s center (Sobral)......-.-.-.|.....-.-- 
Sun’s center (Principe)........--|...-.---- 
BiD.om yen Sans awa 
PiAZ2i HVS B2 vce «si Bae setae Seay 
oe al iia ee Oe ie 
B.D Borg I ee AO Ot 
Piaza, TV}; SIO) aes 
TasieE I. 
Coordinates. 
Photog Unit=50’. 
mag. 
Ze y- 
m. 
+0. 436 | —0. 263 
+0. 553 | —0. 246 
7.0 +0. 026 | —0. 200 
5.8 +1.079 | —0. 328 
5.5 +0. 348 | +0. 360 
4.5 | +0.334 | 40.472 
6.0° | —0.160 | —1.107 
4.5 +0.587 | +1.099 
7.0 —0. 707 | —0. 864 
7.0 —0. 727 | —1.040 
7.0 —0. 483 | —1.303 
bye +0. 860 | +1.321 
RG) —1. 261 | —0.160 
5.5 —1.311 | —0.918 
8.0 +0. 089 | +1.007 
eee ee ees ees eee 
Sobral. 
i Y. 
ur wr 
—1.31 | +0.20 
+0.85 | —0.09 
—0.12| +0.87 
—0.10} +0.73 
—0.31 | .—0. 43 
+0.04 | +0.40 
—0.38 | —0.20 
—0.33.| —0.22 
—0.26 | —0.30 
+0.09 | +0.32 
—0.32 | +0.02 
—0.28 | —0.10 
—0.17 | +0.40 
Principe. 
z. y. 
LZ ” 
—1.04 | +0.09 
+1.02} —0.16 
—0.28 | +0. 81 
—0.21} +0. 70 
—0.31 | —0.38 
+0.01 | .+0.41 
=0)35)|  —0: 7 
—0.29 | —0.20 
—0.26 | —0.27 
+0.07 | +0.34 
—0.30}] +0.01 
—0.26} —0.09 
—0.14] +0.39 
It may be noted that No, 1 is lost in the corona on the photographs 
taken at Sobral. 
some of the astrographic plates at Sobral. 
The star, No. 13, of magnitude 8.0, is shown on 
