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0238 Southern Tibet : vol.6
Southern Tibet : vol.6 / Page 238 (Grayscale High Resolution Image)

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doi: 10.20676/00000263
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VIII. La période 5 [60 (Gartok) — 68 (Camp. 302)].

Les coordonnées du lieu n:o 60 (Gartok) sont: φ = 31° 44′ 6″; λ = 5h 21m 23s.
Les nombres de la deuxième approximation sont pour ce lieu:

| | δ | z | t | dt | Equ. de temps. | T | γ |
|---|---|---|---|---|---|---|---|
| Les 8 premières obs. | − 2° 26′ 11″ | 74° 25′ 55″ | 4h 39m 58s0 | −0s4 | −9m 40s7 | 23h 59m 12s7 | −50m 18s9 |
| » 8 dernières » | − 2 26 27 | 77 45 5 | 4 55 54.4 | −0.3 | −9 40.9 | 0 15 10.7 | −50 20.6 |

Ensuite, on trouve les nombres suivants, qui donnent les corrections des chronomètres pendant cette période:

| Lieu d'obs. | T. m. de Gr. | Chr. 1 | | Diff. obs. | Chr. 2 | |
|---|---|---|---|---|---|---|
| | | γ | Δγ | | γ | Δγ |
| 60 (Gartok) . . . . | 1907 sept. 29, 23h3 | −50m 19s8 | | +1d 30m 42s8 | +40m 23s0 | |
| | | | −4s154 | | | +2s456 |
| 68 (C. 302 = C. 9) . | 1908 janv. 11, 22.4 | −57 31.7 | | +1 42 10.0 | +44 38.3 | |

N:os 61—66 (séries complètes).

| Lieu d'obs. | Campement et nom. | Date et heure (T. m. de Gr.) | γ₁ | γ₂ | Diff. obs. |
|---|---|---|---|---|---|
| 61 | 253 Luma-ngoma . . . . | 1907 oct. 20, 22h3 | −51m 46s6 | +41m 14s8 | −1d 33m 10s6 |
| 62 | 254 Gargunsa . . . . | » 24, 22.9 | −52 3.2 | +41 24.7 | −1 33 40.3 |
| 63 | 257 l'Indus . . . . . | nov. 11, 14.2 | −53 16.2 | +42 8.2 | −1 35 22.0 |
| 64 | 260 Demchok . . . . | 15, 22.1 | −53 34.2 | +42 19.0 | −1 35 52.0 |
| 65 | 263 Dungkang . . . . | 18, 21.9 | −53 46.5 | +42 26.4 | −1 36 13.5 |
| 66 | 276 Julgunluk . . . . | déc. 11, 21.4 | −55 21.7 | +43 23.1 | −1 38 59.5 |

| Lieu d'obs. | γ₂ (réd.) | γ (moyenne). | T | δ₁ + β₁ₐ | δ₂ + β₂ₐ | δ₃ + β₃ₐ | δ₄ + β₄ₐ |
|---|---|---|---|---|---|---|---|
| 61 | −51m 55s2 | −51m 51s2 | 23h 9m 12s9 | −0.00020 | −0.00018 | −0.00016 | −0.00045 |
| 62 | −52 15.6 | −52 9.8 | 23 43 11.2 | −0.00011 | +0.00007 | +0.00005 | −0.00041 |
| 63 | −53 13.8 | −53 15.6 | 15 8 13.7 | +0.00005 | −0.00023 | −0.00008 | −0.00038 |
| 64 | −53 33.0 | −53 34.3 | 23 1 39.8 | +0.00007 | +0.00009 | +0.00009 | +0.00293 |
| 65 | −53 47.1 | −53 47.5 | 22 45 14.5 | +0.00019 | −0.00022 | −0.00017 | −0.00037 |
| 66 | −55 36.4 | −55 30.1 | 22 17 15.6 | +0.00006 | −0.00005 | −0.00006 | −0.00052 |