Immersiones, Atque Emersiones Satellitum Jovis Observatoe Pekini a P. P. Ignatio Kegler, & Andrea Pereira, Soc. Jesu, a Mense Novem. 1730, ad Revd. P. Johannem Baptistam Carbone, Soc Jesu, R. S. S. Transmissoe; et ex Ejusdem Cl. Viri Epistola ad Jacobum de Castro Sarmento, M. D. Col. Medic. Lond. L. & R. S. S. Excerptae

third Reservoir IKKL, with its Out-let X, are included in a Box YYYYY. Into this Box at λ enters a Funnel ΓΛΓ divided within the Box into two Pipes, viz. λ O, which serves for a Feeding-Stream to the great Reservoir, and λ W, which serves for a constant Stream to the third Reservoir. A Stream of Water being let into the Funnel ΓΛΓ, will discharge itself like such an intermitting Reciprocating Fountain at X, where there is a Baton YZZZ without the Box to receive it; with an Out-let α, and a Diagonal Gage ZY, to mark the Rise and Fall of the Water in the Baton. III. Immersiones, atque Emersiones Satellitum Jovis Observatae Pekini a P. P. Ignatio Kegler, & Andrea Pereira, Soc. Jesu, a mensa Novem. 1730, ad Revd. P. Johannem Baptistam Carbone, Soc. Jesu, R. S. S. transmissae; et ex ejusdem Cl. Viri Epistolae ad Jacobum de Castro Sarmento, M. D. Col. Medic. Lond. L. & R. S. S. excerptae. SATELL. I. | Immersiones | Nov. 3d 18h 00' p.m. | |-------------|----------------------| | | 12 14 20 | | | 19 16 12 | | | 26 18 3 | | Dec. | 5 14 22 54 | |-------------|---------------------| | | 12 16 11 30 | | | 19 18 00 45 | Dec. | Year | Month | Day | Hour | Minute | Second | |------|-------|-----|------|--------|--------| | 1730 | Dec. | 21d | 12h | 28' | 40'' | | | | | | | | | 1731 | Jan. | 4 | 16 | 8 | 45 | | | | | | | | | | Feb. | 3 | 18 | 2 | 36 | | | | | | | | | | Mar. | 2 | 9 | 30 | | | | | | | | | | | Apr. | 1 | 11 | 45 | 20 | | | | | | | | | | Mai. | 3 | 8 | 29 | 50 | **SATELL. II** | Year | Month | Day | Hour | Minute | Second | |------|-------|-----|------|--------|--------| | 1730 | Nov. | 25 | 16 | 5 | 30 | | | Dec. | 2 | 18 | 37 | dub. | | | | | | | | | 1731 | Jan. | 3 | 17 | 49 | 50 | | | | | | | | | | Feb. | 4 | 17 | 10 | | | | | | | | | 1731 Emerf. \[ \begin{align*} \text{Mar.} & \quad 19^d \quad 11^h \quad 29' \quad 20'' \\ \text{Apr.} & \quad 13 \quad 8 \quad 35 \\ & \quad 20 \quad 11 \quad 16 \end{align*} \] **SATELL. III.** | Year | Month | Day | Hour | Minute | Second | |------|-------|-----|------|--------|--------| | 1730 | Nov. | 21 | 16 | 16 | 30 | | | Dec. | 20 | 11 | 27 | 50 | | | | 27 | 11 | 49 | 30 | | | | | 15 | 21 | 17 | | 1731 | Jan. | 3 | 15 | 43 | 15 | | | | | 19 | 16 | dub. | | | Feb. | 8 | 11 | 25 | 30 | | | | 15 | 15 | 23 | | | | Mar. | 9 | 6 | 50 | 30 | | | | 16 | 10 | 50 | 50 | | | | 23 | 14 | 51 | 30 | | | Apr. | 21 | 6 | 56 | 20 | | | | 28 | 7 | 28 | 30 | | | | 10 | 55 | 30 | | | | Mai. | 5 | 11 | 30 | 30 | **SATELL. IV.** | Year | Month | Day | Hour | Minute | Second | |------|-------|-----|------|--------|--------| | 1730 | Dec. | 20 | 18 | 50 | 45 | | 1731 | Jan. | 6 | 12 | 38 | 12 | | | | | 17 | 6 | 45 | | | | | 23 | 10 | 54 | | | Mar. | 31 | 6 | inter | 30' & 35' | | | | | 10 | 43 | 40 | Die 14 Nov. 1730 circa hor. 4. p. m. Luna obtexit Martem. Immersio, claro adhuc die, videri non potuit: observata tamen est Emerfio, quae accidit hor. 4. 54' proxime Furnerium. Die 17 Jan. 1731, Observatus est transitus Lunæ per Pleiadas, ut sequitur. H. 1 p. M. 10 9 40 Immersit Electra in recta per Platonem, & Eudoxum. 10 32 52 Immersit Merope —— —— Copern. & Messallam. 10 38 15 Emerit Electra —— —— Thaletem, & Eudoxum. 11 23 52 Immersit praecedens lucidam Pleiadum (triplex Stellula) in recta per Eratosth. & S. Cyrillum. 11 26 5 Immersit lucida, seu Alcyone, Copern. & S. Cathar. 11 47 32 Emerit Merope in recta per Tarunt. & S. Theophil. 12 1 10 Immersit lucidior ex parvis ad Austrum Atlantis, in recta per Sulliald, & Censorinum. 12 12 12 Immersit Atlas in recta per Copern. & Jul. Caesar. 12 13 57 Emerit Alcyone in recta per Marginem Orient. Poscid. & Menelaum. 12 25 3 Immersit Pleione in recta per Copern. & Ptolomeum. 1731, Die 14 Mart. α occultavit Stellam ρ in η Immersio accidit H. 8, 41' 50'' p. M. in recta per Tatium, & Langrenum. Emerit H. 9, 51' a Firmico modicè ad Austrum. Die 20 Mart. occultavit Stellam in Immersione fuit H. 11, 13' p. M. in recta per Merenum, & Bullialdum. Emercio H. 12, 31' è regione Firmici. Die 16 April. occultavit Stellam in Immersione fuit H. 8, 46' 30'' p. M. in recta per Bulliald. & Censorin. Emercio H. 10, 5' 45'' in recta per Taruntium, & Menelaum. Eclipsis Die 29 Julij, 1730, Pekini ob densè nubilatum Coelium non potuit observari. Eam tamen observavit P. Phil. Jac. Simonelli in urbe Chamxio in provinciæ Nankinensis, quæ Pekino ad ortum distat paulò plus 4 grad. Æquat. id est, 16 vel 17 min. temp. Initium Eclipsis ibi fuit H. 10, 55' p. M. & finis H. 12, 49', cum maxima obscuratione digitorum sinicorum 3, 10'. Itaque medium Eclipsis illic accidit H. 11, 52', quod pro Pekino calculus dabat H. 11, 36', cum differentia 16' satis justa. Eandem Eclipsim in Regia Cochinchinæ observavit P. Franciscus de Lima. Initium annotavit H. 9, 58' p. M. & finem H. 11, 50', adeoque medium ibi erat H. 10, 54', unde exurgit differentia ejus Meridiani à Pekino ad Occid. 42'. temp. id est, 10° 30' Æquat.