Upcoming Astronomy Events in September 2023: A Guide for Moon Enthusiasts

Intro: What’s Happening in the Night Sky?

Get ready, skygazers! September 2023 is packed with celestial events you don’t want to miss.

Upcoming Main Moon Phases
Moon PhaseZodiacDate & Time
Full Moon♓ Pisces31 August 2023, 01:35
Last Quarter♊ Gemini6 September 2023, 22:21
New Moon♍ Virgo15 September 2023, 01:40
First Quarter♐ Sagittarius22 September 2023, 19:32

New Moon on September 15

Wondering about the dark skies? The New Moon on September 15 is to thank. It’s an excellent opportunity to spot dim celestial objects.

Moon and Saturn’s Close Approach
EventMoon and Saturn’s Close Approach
DateSeptember 26, 2023
VisibilityVisible to the naked eye
Why It’s SpecialThe Moon and Saturn will appear very close together, creating a stunning visual effect.

When to Observe

This dark moon phase occurs on September 15, setting the stage for sky-watching.

Why It’s Special

A New Moon means zero moonlight, allowing other objects to shine brightly.

What You Can See

Distant galaxies, nebulae, and star clusters become easier to observe.

While you’re marking your calendar for these astronomical highlights in September, don’t forget to check out our fascinating piece on a cataclysmic event on the Moon 33 million years ago and its potential link to Earth’s extinction events.

Neptune at Opposition on September 19

Neptune takes center stage on September 19. Get those telescopes ready!

Neptune at Opposition
EventNeptune at Opposition
DateSeptember 19, 2023
TimeAll Night
VisibilityBest viewed with a telescope
Why It’s SpecialNeptune will be at its closest and brightest, visible all night long.

When to Watch

Neptune is closest to Earth on this date, visible all night long.

Why It’s Important

Being at its closest point means Neptune will appear brighter and larger.

Viewing Tips

Use a telescope with high magnification for the best viewing experience.

Mercury at Greatest Western Elongation on September 22

Mercury shows up in the morning sky on September 22. It’s the best time to catch a glimpse.

Mercury at Greatest Western Elongation
EventMercury at Greatest Western Elongation
DateSeptember 22, 2023
VisibilityBest viewed in the morning sky, facing East
Why It’s SpecialMercury will be at its farthest from the Sun, offering optimal visibility.

When to See

Look east during dawn to find Mercury at its highest point.

Why It’s a Big Deal

This is Mercury’s farthest separation from the Sun, making visibility optimal.

Catch It If You Can

Because Mercury orbits quickly, this viewing window is brief.

While we’re on the topic of fascinating lunar events this September, you might be interested in how different cultures track the moon. Check out our article on the 12 lunar calendars still in use around the world for more insights.

Equinox on September 23

Celebrate the equinox on September 23! Both hemispheres experience an equal day and night.

Equinox on September 23
DateSeptember 23, 2023
TimeThroughout the day
VisibilityGlobal Event
Why It’s SpecialMarks the beginning of fall in the Northern Hemisphere and spring in the Southern Hemisphere.

Northern or Southern?

Fall begins in the Northern Hemisphere, while spring starts in the Southern.

Cosmic Significance

The Sun crosses the celestial equator, balancing day and night.

Celebrate the Season

Cultures worldwide mark this day with festivals and rituals.

Moon and Saturn’s Close Approach on September 26

Look up on September 26! The Moon cozies up to Saturn in a celestial dance.

Moon and Saturn’s Close Approach
EventMoon and Saturn’s Close Approach
DateSeptember 26, 2023
VisibilityVisible to the naked eye
Why It’s SpecialThe Moon and Saturn will appear exceptionally close in the night sky, creating a captivating visual display.

When to Look

The event occurs post-sunset, visible to the naked eye.

Why It’s Exciting

The Moon and Saturn’s proximity creates a stunning visual effect.

Snap That Pic!

This is an Instagram-worthy moment for all astronomy lovers.

Full Moon, Supermoon on September 29

End the month with a Supermoon on September 29. It’s a lunar spectacle!

As you prepare to observe the Supermoon on September 29, you might be wondering about more than just its size and brightness. Explore our article on whether there is water on the Moon to delve deeper into lunar mysteries.

Full Moon, Supermoon on September 29
EventFull Moon, Supermoon
DateSeptember 29, 2023
VisibilityVisible to the naked eye
Why It’s SpecialThe Moon will be full and at its closest approach to Earth, making it appear larger and brighter.

When to See

The Full Moon peaks in the night sky, so find a cozy viewing spot.

What Makes It Super?

A Supermoon appears brighter and larger due to its proximity to Earth.

Don’t Miss Out

It’s the last significant moon event of September, so make it count!

Conclusion: Mark Your Calendars!

September 2023 is a stellar month for astronomy. From New Moons to Supermoons, there’s something for every Moon and planet aficionado.

If you’re excited about the upcoming astronomy events this September and need a quality telescope, don’t miss our guide on the best telescopes of 2023 to make your stargazing unforgettable.

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