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Old February 14th 18, 08:42 AM posted to sci.astro.amateur
Gerald Kelleher
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Default People without integrity

On Wednesday, February 14, 2018 at 12:45:01 AM UTC, palsing

You are a special case Paul and the good news is that you have integrity whatever else you may be, after all, defending the undefensible* takes a lovable personality.

The Equinox is a special day with two distinct sunrises and sunsets, something that doesn't happen on any other day of the year. There is the normal 24 hour day sunrise/sunset but at the South and North poles on that same day there is the singular sunrise/sunset -

https://www.timeanddate.com/sun/anta...th=3&year=2018

Among the present audience it is too much to ask to recognize that two distinct rotations are behind the unique events on the Equinox as seemingly you and others would much prefer a pivoting circle of illumination off the Equator to account for polar sunrise/sunset.






*"When does the line between day and night become vertical? Tomorrow. Tomorrow is an equinox on planet Earth, a time of year when day and night are most nearly equal. At an equinox, the Earth's terminator -- the dividing line between day and night -- becomes vertical and connects the north and south poles. The featured time-lapse video demonstrates this by displaying an entire year on planet Earth in twelve seconds. From geosynchronous orbit, the Meteosat satellite recorded these infrared images of the Earth every day at the same local time. The video started at the September 2010 equinox with the terminator line being vertical. As the Earth revolved around the Sun, the terminator was seen to tilt in a way that provides less daily sunlight to the northern hemisphere, causing winter in the north. As the year progressed, the March 2011 equinox arrived halfway through the video, followed by the terminator tilting the other way, causing winter in the southern hemisphere -- and summer in the north. The captured year ends again with the September equinox, concluding another of billions of trips the Earth has taken -- and will take -- around the Sun." NASA