THE ORBIT OF THE DOUBLE STAR h 5014. 
381 
and conclude that the result must be the best that is obtainable 
from the given measures when really it is not. so. In the present 
instance no other course is open, there being no distance measures 
at all over a great part of the arc described. The elements were 
deduced from the apparent ellipse by the formule given by Prof. 
Glasenapp in Vol. xurx. of the Monthly Notices of the Royal 
Astronomical Society. 
The Right Ascension and South Declination for 1900 are, 
18h. Om. and 43° 24’, and the components are equal and of 6°5 
magnitude. 
Elements. 
Os 39 
i eemeabely cag ie 
N=) 199,36 
a 
0-499 
cee OOK 
T= '3859'00 
P = 141-69 years 
pb = —2°:5408 
The following is the comparison between the observed and cal- 
culated positions :— 
Epoch. 
57:28 
80°46 
80°53 
86°57 
87°75 
90°61 
91°63 
93°64 
1836-73. 
Observer. 
Herschel 
Jacob 
Russell 
Cruls 
Pollock 
Pollock 
Sellors 
Sellors 
Sellors 
6 
co) 
Observed 
6, 
Calcula- 
ted Pos. 
Angle. 
251°2 
133°8 
82°5 
82:4 
75°0 
73'8 
TO 
ET 
67:7 
0, —0 
O 
—2:°0 
+1:3 
—3'2 
+20 
—0°2 
—0°'8 
aOon 
+ 0:2 
+ 0:4 
e|* 
No, of 
Nights. 
wonmnmnwrnwnrnwiaA 
Po 
Observed 
Distance. 
0:67 
0°55e 
0°81 
0:6e 
12a 
1°38 
IRA 
1:10 
1°02 
Pe 
Calculated 
Distance. 
0°43 
0°63 
1:05 
1:05 
1:14 
1:16 
LSU) 
1°20 
1°23 
PoPe 
wore hw bd 
