Lsengden beregnede Hojder efter de observerede Solrender, finder man, at i Gjennemsnit give nedre Solrands Obser- vationer Hojderne 6."8 for store, og 0vre Solrands 6."6 for smaa. Den i Beregningen benjttede Solradius. 15' 59."5, er saaledes for stor og bor, for at bringes i Overensstem- melse med Observationerne, formindskes til 15' 52. "8. Be- regnes med denne Yserdi faar man de nedenstaaende Yser- dier for Forskjellen mellem observerede og beregnede Hpj- der. livis Kvadratsum er Minimum. bable values resulting for the latitude and longitude accor- ding to the observed solar limbs, the lower-limb observa- tions are found to give on an average the altitudes 6." 8 too high, the upper-limb 6."6 too low. Hence, the as- sumed semidiameter of the sun, — 15' 59. "5, will be too great, and should, to make it agree with the observations, be re- duced to 15' 52."8. Computed with these figures, we get the subjoined values for the difference between observed and computed altitudes, the sum of the squares of which is a minimum. 1877. August (August) 12—13. Cliron. Frodsham. Dobbelt afloest Hfijde. (Double obs. Altitude.) Obs. — Ber. H0jde. (Obs. — Calc. Alt.) Clwon. Frodsham. Dobbelt aflsest Hojde. (Double obs. Altitude.) Obs. — Ber. Hojde. (Obs. — Calc. Alt.) 2 I h 2()W 35-so 0 62° 40' 0" + 8" 0 h 2 2 .-*0 O 75° 8' 5" + 1" 27 5i- 5 50 0 — 4 5 40. 0 8 5 + 3 29 8-5 63 O 0 — 19 7 51. 0 7 0 — I 30 23. 0 IO 0 — 18 9 7.0 6 55 + 11 31 35- 5 20 0 — 9 10 57- 0 5 40 -j- 2 32 50. 0 30 0 — 5 12 2. 0 5 O + 2 34 4- 7 40 0 — 8 13 8. 0 4 35 4- 13 35 22. 5 50 0 + 8 14 12. O 3. 20 — 5 36 35- 5 64 O 0 + 3 15 16.0 2 20 — 5 2 I 38 44-~5 0 65 20 0 — 8 O 21 14.0 ©73 52 50 — 3 40 4. 0 30 0 — 14 22 55-o 50 40 — 4 41 23. 0 40 0 — 17 25 9. 0 47 20 IO 42 42. 0 50 0 — 17 26 26. 0 45 20 — 15 \ 44 i- 5 66 O 0 — 16- 27 2 1.0 44 15 — 4 45 19- 5 10 0 — 11 28 12.0 42 55 — 4 46 40 0 20 0 — 8 29 25.0 41 0 I 48 1.0 '30 0 — 7 30 25.0 . 39 O I I 49 23. 0 40 0 — 7 31 24.0 37 20 6 23 17 52. 0 O 74 10 0 + 9 O 36 27.0 O 74 31 5 — 13 19 47. 0 14 30 — 14 37 33- 0 28 40 0 20 51. 0 18 15 + 20 • 38 32. 0 26 30 I 21 47. 0 20 0 ■ + 5 39 25. 0 24 20 — 4 22 33- 0 22 0 + 7 40 22. 0 22 0 — 7 23 33- 0 24 20 + 8 4i 18.0 20 0 0 24 25. 0 26 30 + 13 42 18.0 18 15 + 14 25 28. 0 28 40 + 5 43 18.0 14 30 — 14 26 35- 0 31 5 + 7 45 13.0 10 0 + 1 23 29 45- 0 © 73 33 50 O 2 13 45- 0 O 66 40 0 + 7 31 20. 0 36 40 + 25 15 6. 0 30 0 + 2 32 39- 0 39 30 + 19 16 29- 5 20 0 -j- g 34 32. 0 42 25 O 17 48. 5 10 0 — 10 36 4. 0 45 5 + 6 19 6. 7 0 0 — 3 38 46. 0 49 20 + 14 20 28. 0 65 50 0 + 2 39 57- 0 50 50 + 7 2 I 46. 0 40 0 — 2 41 0. 0 52 5 + 6 23 4. 0 30 0 + 1 41 55- 0 53 10 + 2 24 2 3: 0 20 0 + 5 23 55 32. 0 O 74 3 5*5 — 8 2 26 32. 0 O 64 0 0 + 13 57 10. 0 4 10 — I 27 47- 5 63 50 0 +-17 58 12. O 4 25 — 2 29 3- 0 40 0 + 9 59 16.0 4 25 — 7 30 !5- 5 30 0 — 3 O 0 2. 0 4 40 — 3 31 34- 0 20 0 + 14 I 0.0 4 35 — 7 32 46. 5 10 0 + 4- 2 4.0 4 30 — I I 34 i- 5 O 0 + 4 2 . 46.0 4 25 — I I 35 16. 0 62 50 0 -j- 7 3 26.0 4 30 — 7 36 28.5 40 0 — 15 5 45 23.0 O 29 30 O + 1 5 50 48. 0 O 29 30 0 + 9 47 4.0 10 0 + 12 51 41. O 20 0 + 14 47 56.0 0 0 + 13 52 31. 0 10 0 + 3 48 46.0 28 50 0 + 2 53 24- 5 0 0 + 12 Den norske Nordhavsexpedition. II. Molm: Astronomiske Observationer.

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