Sagan

:For the Polish town, see ?aga?.

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A Sagan is a humorous unit of measurement equal to at least 4,000,000,000.

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The unit is derived from the phrase billions and billions (of stars), attributed to the American astronomer Carl Sagan. The minimum lower bound of a number conforming to the constraint of billions and billions must be 2,000,000,000 plus 2,000,000,000 or 4,000,000,000, assuming, of course, that Sagan was using the American English definition for billion.

Related Topics:
American - Astronomer - Carl Sagan - Billion

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Note that though many believe Sagan was famous for using the phrase billions and billions, he claims he never actually did, having used instead the simpler phrase billions of stars.... It was actually Johnny Carson, impersonating Sagan, who popularized the phrase attributed to Sagan.

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