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1878. Juni (June) 25—26.
Lommechron. (Pocket-Chronometer.) 2 h' J
21h 3im 36/8 © 83" 30' 0" — 0"
33 8. 0 35 0 IO
34 30. 8 40 0 — 2
35 58. 8 45 0 + 1
37 30- 0 50 0 + 1
39 5-2 55 0 — I
40 41. 2 O O ■'Th 00 O
42 17. 6 5 0 + 4
44 5- 6 10 0 — 5
52 36- 4 ® 85 36 10 -)- 4
53 45- 6 38 35 — 7
54 52-4 4i 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 1 44.4 56 0 — 6
2 57- 6 58 10 —- 12
4 5i-2 *86 2 0 — I I
5 43- 6 3 35 — I
7 17- 6 6 5 — 5
8 18. 8 7 45 — 6
9 59- 6 10 50 + 7
11 32.4 13 10 + 9
12 40.0 14 30 + 2
!3 37-6 15 40 — 2
14 48. 8 l7 5 -- 5
15 36.4 18 0 — 7
17 0. 8 19 50 — I
17 58.8 21 0 + 1
I Betingelsesligningerne liar Hr. Astrand indfort en
Correction (J o) for den benyttede Solradius. Som til-
mermede Yserdier er antaget cp0 — 70° 22' 28. "3 og ).0 =
2h 4m 28/8, og Reids Correction til Greenwich Middeltid
ved Observationernes Begyndelse sat til 15” 8.'1.
Af. Ligningerne Andes:
Lommechron. (Pocket- Ch ro no meter.) 2 ll ' J
22h l8”' 54/4 © 86° 22' 0" + 2"
19 55-6 23 5 + 8
20 46.0 24 30 + 22
22 58.0 25 55 + 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 0 + 9
3i 32.0 31 0 + 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 24.0 26 45 — 4
47 34- 8 26 0 + 5
49 32.4 25 0 + 11
23 43 6.0 O 84 35 0 — 2
44 34- 0 30 0 — 4
45 55- 2 25 0 — 13
47 20.4- 20 0 + 0
• 48 50.0 15 0 + 11
50 1. 6 10 0 + 5
51 14.0 5 0 — 5
In the equations of condition. Mr. Astrand introduced
a correction ( J u) for the assumed semidiameter of the sun.
As approximate values, he put rp0 zz 70° 22' 28. "3 and
K — 2* 4”1 28.'8, and the Reid correction to Greenwich
mean time at the beginning of the observations = -f-
15m 8/1.
From the equations, he found
d = ± 4."6; J q = + 5."9 + 0/66
J <P - — 4/3 ± 0/7; J l - + 34."4 + 9/4 = + 2/29 + 0/63.
Antages en sandsynlig constant Fejl i de maalte
Hojder af + 10", saa er demies Indfiydelse paa den be-
regnede Bredde + 11/4, og paa den beregnede Lamgde
+ 0/39. Resultatet bliver:
Assuming a probable constant error in the observed
altitudes of + 10", its effect on the computed latitude
will be + 11/4, and on the computed longitude + 0/39;
as result we get
<p zz 70° 22' 24/0 ± 11/4
l - 31° 7' 46."4 ± 12."6 = 2>‘ 4” 31/1 + 0/84 E. Greenwich.
Reduceres til Fsestningens Midte faaes:
Yardohus
Reduced to the centre of the fortress, we get for
Yardohus —
cp zz 70° 22' 18."4 ± 11/4
l - 31° 7' 51."3 + 12/6 = 2h 4“ 31/4 ± 0/84 E. Greenwich.
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