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Definition of the twilight intervals
From: Robert H. van Gent
Date: 2015 Aug 16, 11:18 +0000
From: Robert H. van Gent
Date: 2015 Aug 16, 11:18 +0000
Hi,
There is a discussion at the moment at
https://en.wikipedia.org/wiki/Talk:Twilight#Article_contradicts_itself_on_twilight_definitions
on the question whether civil, nautical and astronomical twilight are sequential
(i.e. non-overlapping) intervals as many internet sources claim or that they
are overlapping intervals (as is claimed in modern editions of Bowditch's
The American Practical Navigator.
Any thoughts on this matter?
Rob van Gent ("Astrolynx")
