Green Flash

A fair wind right down the Channel was rare enough: often and often he had had to anchor for the tide, beat up tack upon tack in the narrow seas, winning a few miles only to be driven back again—weeks sometimes before he could get clear into the Atlantic; but now the familiar landmarks filed by in fine brisk succession: the South Foreland, Dungeness, Fairly, and Beachy gleaming through a wall of rain with solid blue-black cloud behind it; and then late in the evening there was the Wight clear on the starboard bow. Jack climbed into the mizentop with a telescope and before the green light vanished in the west he thought he caught the glint of his observatory dome at Ashgrove Cottage. He stared at it in a strange confusion of spirits, as though at another world, farther from him now than when he had been in the Antipodes.

(Patrick O'Brian, The Surgeon's Mate)