An equinox is an astronomical event in which the plane of Earth’s equator passes through the center of the Sun.
On an equinox, day and night are of approximately equal duration all over the planet – a day and night of roughly 12 hours each.
There are two equinox’s every year around 20 March and 23 September.
The Autumn equinox also marks the start of Autumn.
On a mobile device ?. Scroll down to see the LIVE weather and tomorrows weather for Merseyside. And like our facebook & twitter page to keep up to date with our latest posts.