The date for Easter changes every year. Have you ever wondered why? And just what does the Moon have to do with it?

Here’s how you can work out the date for Easter Sunday…

Easter Date Calculation

Easter Sunday is always the first Sunday after the full Moon, following the March Equinox (which is always on or around 22nd March every year). It’s a bit of a calculation and here it is for 2019…

This year, the March Equinox was on 21st March. The full Moon following this date is actually today – Good Friday, 19th April. Therefore Easter Sunday is the following Sunday which is 21st April 2019!

What is an Equinox?

An equinox is when the centre of our Sun is on exactly the same plane as Earth’s equator. The Earth’s axis isn’t tilted toward the Sun one way or the other and the hours of night and day are almost equal in length. Another thing to note at equinox is that sunrise is due east and sunset is due west.

After Easter…

Stargazers Club WA is heading to Lake Ninan near Wongan Hills on an astrophotography expedition! On Saturday, 4th May we’ll be joined by talented WA Astrophotographer, Roger Groom, to discover how to take images of the Milky Way above a beautiful landscape. Non-members are welcome. More details and tickets…