EGRESS (Lat. egressus, going out), in astronomy, the end of the apparent transit of a small body over the disk of a larger one; especially of a transit of a satellite of Jupiter over the disk of that planet. It designates the moment at which the smaller body is seen to leave the limb of the other.

Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)

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