α
N-M
V
σ = 455
N-M
·(6)
Table III, below, exhibits the steps of the process for determining.
TABLE III.
TO FIND THE PROBABLE ERROR OF OBSERVATION.
No. of pair Stars of the pair; B. A. C. Nos. Seconds of latitude Means V # # # 1 745-786 9.5510.48 10.23
0.25 11.18
0.95 9.54
10.41 0.69
0.18 13.59
0.54 PROGE 2 872-901 12.26
13.05 0.79 13.31
0.26 3 502-518 13.97 13.39 0.65 4 999-1052 14.55
14.05 0.50 14.20
0.15 10.66 0.28 0.734 5 1097-1138 9.27
10.38 1.11 11.22
0.84 7.050 6 571-628 11.57
10.87 0.70 12.56
0.03 39.001 7 1015–1052 11.82
12.53 0.71 13.22
0.69 4.761 11.97 0.22 8 1326-1346 12.19 12.41 0.22 0.184 13.37 9 1391-1408 13.29 0.08 13.22 0.07 0.0064
0.0049 10 1408-1437 11.70 10.57 0.28 0.0783 11 1726-1778 9.74
10.29 0.55 10.56
0.27 0.07299 9.21
0.63 0.3969 12 1837-1876 9.17
9.81 0.67 11.14
1.30 1.69001 13.75 0.59 13 510-574 13.16 12.57 0.59 0.3481 11.12 9.04 :0.016 14 1377-1444 11.16 11.20 0.04 0.0016 13.15 0.03 0.009 15 1420-1444 13.12 13.09 0.03 0.0009 13.24 0.12 0.0144 16 1602-1687 14.90 13.36 1.54 2.3716 11.93 1.43 2.0449 9.83 0.03 *0.00094 17 1958-2001 9.86 9.89 0.03 0.0009 18 1408-1432 11.70 12.72 19 1893-1900 12.49 12.26 0.23 0.23 0.0529 0.0529 20 1990-2082 13.47 21 755-786 10.73 22 867-872 13.14 23 2133-2163 9.89 24 2398-2442 13.56 25 2398-2169 9.25 26 2486-2555 13.19 27 2617-2659 11.82 28 2700-2714 14.46
V = 15.9288