NavList thread: Calculating Twilight
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19 Sep 2014, 08:38 | Sean C
19 Sep 2014, 14:21 | Greg Rudzinski
19 Sep 2014, 19:27 | Stan K
20 Sep 2014, 03:07 | Frank Reed
20 Sep 2014, 03:32 | Bruce J. Pennino
20 Sep 2014, 17:55 | Frank Reed
20 Sep 2014, 18:17 | Gary LaPook
20 Sep 2014, 18:58 | Bill B