The Autumn Equinox will peak here in the UK around 2.54am BST when most enthusiastic skywatchers will still be snugly asleep in bed.
But the astronomers at robotic telescope service Slooh will focus their instruments on the Sun tomorrow for you to watch the equinox from the comfort of your home.
The Autumn Equinox live stream will kick off at 1am UK time, or 8pm EDT for viewers in the USA.
Slooh teased: “During our live broadcast on the September equinox, we’ll feature live views of the Sun from our partner telescopes all over the world and we’ll reflect upon the physical and cultural meaning of equinox to world cultures throughout history.”
You can watch the equinox broadcast live on Slooh’s website here, but you will need to sign up for a Slooh account.
Slooh memberships are either free or subscription based – paid memberships will give you a chance to control one of Slooh’s remote telescopes.
Once you sign up, you will have a chance to watch Slooh’s resident astronomers discuss the Autumn Equinox at length.
Tomorrow’s equinox live stream will feature appearances from veteran Slooh astronomer Paul Cox, space expert Dr Paige Godfrey and Slooh storyteller Helen Avery.
Ms Avery will tune in to the equinox stream from the Lovelight Yoga festival in Maryland, USA.
She said yesterday: “So I’ve just arrived at the Lovelight Festival where 1,200 being are coming this weekend in Maryland to celebrate the equinox.
“I look forward to seeing you on Slooh, live from this festival tomorrow as we celebrate the equinox.”
Slooh audiences are typically given an opportunity to submit questions to the Slooh team via Twitter which are then answered live on air.
What is the Autumn Equinox?
Every year in March and September the two equinoxes signal the start of spring and autumn respectively, due to the Earth’s tilt to the Sun in space.
Similarly, in June and December the summer and winter solstice kick-start the astronomical seasons of summer and winter.
Because the Earth is slightly titled towards the Sun at a 23.4 degree angle, the Sun always moves to the north or to the south of the equator.
But twice a year, during the equinoxes, the Sun appears to pass directly over the imaginary line cutting the globe in half.
The equinox results in daytime and nighttime lasting roughly the same amount of time and this is reflected in the name equinox, which originates from the latin words for equal and night.
Slooh said: “A celestial equinox is a point of balance in the cycles of the seasons.
“Many world cultures regarded the equinox as a pivot point, a time when the world moves from light to darkness and back again.
“To some, an equinox signified the struggle between the forces of darkness and decay and light and rebirth, and many spiritual leaders, both real and legendary, faced their greatest confrontation with darkness to attain the light at a time near the equinox.”