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Log
Page | Plate | Class | Object | R.A. | Dec | Start | Obs H.A. | Obs Dec | Stop | Exp | Date | Miscellaneous |
---|---|---|---|---|---|---|---|---|---|---|---|---|
82 | Dec 16 1899 | x 12353 Perforated brass on plate. Intended exp. = 10s but dome stuck on image giving 20s: aperture of dome. = 3 inches. | ||||||||||
82 | Dec 16 1899 | x 12354 Aperture as in last. | ||||||||||
82 | Dec 16 1899 | x 12355 Aperture as in last. | ||||||||||
82 | Dec 16 1899 | x 12356 Aperture as in last and perforated brass. | ||||||||||
82 | Dec 16 1899 | x 12357 Aperture as in last. | ||||||||||
82 | Dec 16 1899 | x 12358 Aperture as in last. | ||||||||||
82 | Dec 16 1899 | x 12359 Aperture as in last and perforated brass. | ||||||||||
82 | Dec 16 1899 | x 12360 Aperture as in last. | ||||||||||
82 | Dec 16 1899 | x 12361 Aperture as in last. Exp. about 2s. | ||||||||||
82 | Dec 16 1899 | x 12362 Moon through perforated brass. Exp. approx. 5 sec. Ap. as in last. | ||||||||||
82 | Dec 16 1899 | x 12363 Exp. approx. 5 sec. Ap. as in last. | ||||||||||
82 | Dec 16 1899 | x 12364 Exp. approx. 2 sec. On a Seed process plate. Ap. as in last. | ||||||||||
82 | Dec 16 1899 | x 12365 Small App. Ec. aperture. Seed process plate approx. 2 sec. | ||||||||||
82 | Dec 16 1899 | x 12366 Same as last. | ||||||||||
82 | 12367 | Moon | 06 28 | 0 41 W | +22.7 | 06 28 | Dec 16 1899 | x 12367 Same as last, except large Jp. Ec. Ap. | ||||
82 | Dec 16 1899 | Note: Plates (12341-12367) inches, taken during lunar eclipse of this date were standardized with the regular standardizing apparatus in the measures shown by the following diagram. Nos. 5, 4 3 2 1A represent the numbered apertures on the standard disc; while nos. 2, 4, 8, 16, 32 indicate the no. of seconds aperture no. 2 was exposed to the plate. [[diagram on left of numbered apparatus]] |