Flik
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This article is about a unit of measure. For the Disney character, see List of A Bug's Life characters.
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In radio astronomy, the unit flik was coined by a group at Lockheed in Palo Alto, California as a substitute for the SI derived unit W cm−2 sr−1 µm−1, or watts divided by centimeters squared, steradians, and micrometers.
This is primarily used as a unit of spectral radiance or sterance. While it started out used only in Lockheed, many in the radio astronomy field adopted its use.
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