Posted on 09/22/2021 3:36:20 PM PDT by MtnClimber
Explanation: When does the line between night and day become vertical? Today. Today 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 9 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.
The “snake’s diamonds” on the pyramid at Chichen Itza are all aligned on the equinox...Only time of the year they all are correct...Huge crowds go there to see them on the Equinox...
That is cool!
That’s awesome!
Here are some planets and the sun and other stars that make the sun look tiny.
https://en.wikipedia.org/wiki/List_of_largest_stars
Earth is really tiny compared to them....
That video’s perspective would be from a satellite orbiting around the earth once per year in earth’s orbital plane around the sun.
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