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Log
| Page | Plate | Class | Object | R.A. | Dec | Start | Obs H.A. | Obs Dec | Stop | Exp | Date | Miscellaneous |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 | 12243 | F | α Cygni | 21 28 | 0 49 W | +61.0 | 23 34 | Oct 26 1899 | x 12243 Focus plate. (Isochromatic) Foci Began A Ended A 5.6 - 21 28 21 44, 5.8 21 44 21 56, 6.0 21 56 22 16, 6.2 22 16 22 51, 6.4 22 51 23 01, 6.6 23 01 23 13, 6.8 23 13 23 34. R.A. slow motion moved about -1/8 rev. between each two exps. except last = -1/2 rev. 6.2 is best focus not only for red but all parts of spectrum shown on plate. Effect of Temperature upon flexure, rate of clock &c. | |||
| 12 | 12244 | 23 51 | 3 31 E | +0.0 | 01 57 | Oct 26 1899 | x 12244 [[insert]] Effect of lens curvature before flexure. Rate of clock & c [[/insert]]Tel. west of pier. Began A Ended A H.A. 23 51 23 53 3 31 E. Clock running. 0 51 0 53 2 31 E. Ld changed to 132. 0 55 0 57 2 29 W 1 55 1 57 3 29 W. Clock ran poorly during last exp. |
