Southport Astronomical Society – Summer Solstice

Summer Solstice in Southport

Southport Astronomical Society welcomes you to this Observatory on Saturday 22nd June to celebrate the Summer Solstice.

OPEN from ll am to 4.30 pm

 

What is a SOLSTICE ?

Well the Solstice in Summertime is the day when the daylight is at its longest in the entire year. – the longest day of the Year. (Which means the night is at its shortest). At Noon the Sun reaches its highest point in the sky. In Southport this is approximately 60 degrees above the horizon.

This year the actual day is 21st June. It is now officially Summertime! From December last at the Winter Solstice (shortest Day and longest

Night) the days have been progressively becoming longer – until now. Unfortunately, from now the days start to shorten. For a couple of weeks or more though you will hardly notice any difference.

In the Southern Hemisphere, South America, southern Africa, and Australasia it is their Winter Solstice.

The reason for all this is that Earth is tilted over at just over 23 degrees from upright as it travels on it’s annual path around the Sun. This tilt is fixed. It is this that causes the Earth to have Seasons. If the Earth did not have a tilt then every day of the year would be exactly the same. The sun would always appear the same – and there would not be any seasons at all.

There is a place in the Solar System where this is the case. It is the planet Venus. And Venus is really odd. Its day is longer than its year!

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