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•16
1878. Juni (June) 25—26.
Lommectiron. ■ f Pocket-Chronometer.) 2 h’
2.» 31" 36/8 0 83° 30’ 0" _ 0"
33 8.0 35 0 — ro
34 30.8 40 0 — 2
35 58.8 45 0 + i
37 30. O 50 0 i
39 5* 2 55 0 - i
40 41. 2 84 0 0 0
42 17.6 5 0 + 4
44 5-6 10 0 - 5
• .52 36-4 0 00 01 36 10 4
53 45-6 38 35 - 7
54 52- 4 41 25 - i ■
55 58.4 43 50 - 5
-57 17. 2 46 30 - 13
58 27.6 49 10 — 4
59. 53.6 52 30 + 0
22 i 44- 4 56 0 — 6
2 57-6 58 10 - 12
4 51. 2 86 2 0 - 11
5 43-6 3 35 - i
7 17. b 6 5 - 5
8 18. 8 7 45 - 6
9 59- 6 10 50 + 7
il 32- 4 •3 10 + 9
. 12 40. o ■4 30 + 2
13 .37-6 ’ !5 40 - ■2
14 48.8 - 17 5 1– 5
15 36-4 18 0 - 7
17 0. 8 50 - i
17 58. 8 2 i 0 _L i
22® l8™ 54-’4 _ ø 86° 22’ o" + 2"
■9 55-6 23 5 . -i- 8
20 46.0 24 30 + 22
22 58-0 25 55 -t- 7
24 16. 8 26 40 — i
24 59. 2 27 20 +2
25 55-8 27 45 ■— 3
26 44-8 28 35 +7
27 45- 6 28 40 — 7
28 32.8 29 20 — o
30 27.2 30 o . + • 9
31 32.0 31 o +12
32 31.2 31 10 +8
22 37 17. 2 O 85 28 20 — 6
38 29.6 28 35 +2
39 28.0 28 35 +4
40 37-2 28 35 +9
41. 30.8 28 5 — i
42 45-2 . 27 40 — 6
43 50.4 27 20 — 3
45 24-o 26 45 — 4
" 47 34-8 26 o +5
49 32.4 2 f o +11
23 43 6- o 0 84 35 o — 2
44 34: o 30 o — 4
45 55-2 25 o ’ — 13
47 20.4 20 o + o
48 50. o 150 + 1 1
50 1.6 10 o +5
.51140 50 — 5
In the equations of condition. Mr. Astrand introduced
a correction ( J o) for the assumed semidiameter of the sun.
As approximate values, lie put (f, — 70" 22’ 28."3 and
’/., — 2’’ 4m 28.’8. and the Reid correction to Greenwich
mean time at the beginning of the observations = -f- .
15" 8/1.
From the equations, he found
å = ± 4."6; J g = + 5."9 + O."0(>
J ff — — 4."3 + 0/7; J >. = + 34."4 + 9,"4 = + 2/29 + 0.’63.
Assuming a probable constant error in the observed
altitudes of + 10", its effect on the computed latitude
will be + 11/4. and 011 the computed longitude + 0.’39;
as result we get
rf = 70° 22’ 24."0 ± 11."4
I = 31" 7’ 4(i.’’4 ± 12."(i - 2» 4™ 31,’1 + U/84 E. Greenwich.
Reduced to the ■ centre of the fortress, we get for
Vardøhus —
I Betingelsesligningerne har Hr. Astrand indfort en
Correction (.7 q for den benyttede Solradius. Som
tilnærmede Værdier er antaget ’/’„ = 70" 22’ 28. "3 og /, —
2h 4m 28/8, og Reids Correction til Greenwich Middeltid
ved ’Observationernes Begj’ndelse sat til -j- 15m 8/1.
Af Ligningerne budes:
Reduceres til Fæstningens Midte
faaes-Vardøhus
r/i = 70" 22’ 18."4 ± 11."4
>. — 31" 7’ 51."3 ± 12/6 = 2" 4» 31. 4 ± 0/84 E. Greenwich.
Antages en sandsynlig constant Fejl i de maalte
Højder af + 10". saa er dennes Indflydelse paa den
beregnede Bredde + 11. "4. og paa den beregnede Længde
+ 0/39. Resultatet bliver:
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