September 2025 has some exciting astronomy happening, and as aurora hunters, the event we’re most excited about is the Autumn Equinox, because equinoxes often mean more displays of the northern lights. Let’s take a look at what’s happening in the sky this month.

Total Lunar Eclipse – September 7th

On the night of September 7th, the Moon will slip completely into Earth’s shadow, creating a total lunar eclipse. The Moon it will glow a striking copper-red, caused by Earth’s atmosphere bending sunlight around the planet and filtering out all but the red wavelengths. This lunar eclipse will be visible across Asia, Africa, Europe, and Australia. And will occur in the UK and Europe in the early evening hours as the Moon is rising. The best thing about this event is that no special equipment is needed, just look up!

Lunar Eclipse – Alex Wu

Lunar Occultation of Venus – September 19

On September 19, the Moon will pass directly in front of Venus, briefly hiding the planet from view. To the naked eye, it will appear as though Venus suddenly vanishes behind the Moon’s edge around 12:55 BST, only to reappear on the opposite side less than an hour later. This event will happen during the daytime and can be observed from parts of Africa, Europe, Asia, North America, and Greenland. Binoculars or a small telescope will be needed to observe the event due to the daylight.

Venus Occultation – Stellarium

September Equinox – September 22

On September 22, Earth reaches the September equinox, when day and night are nearly equal. This marks the start of autumn in the Northern Hemisphere and spring in the Southern Hemisphere. Culturally, equinoxes have long symbolized balance and seasonal change, and for stargazers, they mean earlier nightfall and longer opportunities for observing the skies.

Eqionoxes are also a time of the year where we see more displays of the aurora. This is due to the alignment of the earth’s magnetic fields and the Sun, this short alignment which happens twice a year allowed more solar particles to enter the Earth’s atmosphere and sometimes cause more/stornger dispays of the Aurora Borealis.

Equinox – NASA

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Image Credits: Fatima Kilic, Wiki