Ainda não temos significados para "observe an emersion".
1Greenwich time by observing an emersion of the second satellite of Jupiter.
2Observed an emersion of Jupiter's first satellite.
3This evening, we observed an emersion of Jupiter's first satellite, which gave 214° 53' 45 of longitude.
4On the 29th of June, at two o'clock in the morning Mr. Cook, in conjunction with Mr. Green, observed an emersion of Jupiter's first satellite.
5This evening, the lieutenant and Mr. Green observed an emersion of the first satellite of Jupiter, which gave 214° 53' 45 of longitude.