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    Last light
    From: Frank Reed
    Date: 2015 May 27, 13:47 -0700

    There's an interesting article at aviationweek.com about pilots misidentifying runways and even airports. The article uses an expression that I haven't seen before for the end of civil twilight, when the Sun is 6° below the horizon in the evening. They call it "last light". Is this a common aviation expression, or is it local to Australian aviation culture? Obviously "last light" is vague enough that it might mean different things to different people. But this article is referring to it very specifically as the end of civil twilight in the normal astronomy/navigation sense. So that's what I'm wondering about. Is this specific meaning common? Who recognizes that as a normal, specific definition of "last light" --identical to the end of civil twilight?

    Frank Reed
    Conanicut Island USA

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