If you're one of these zodiac signs, prepare for a total eclipse of the heart. 

The first lunar eclipse of the year is set to take place on the night of Sept. 17 during this month’s full moon, which is also a Harvest moon—the closest full moon to the autumnal equinox. And considering the full moon, Harvest moon and lunar eclipse fall on the same date, astrologists predict that four out of the twelve star signs will be most affected by this "trifecta" phenomenon. 

According to astrology influencer Solel Nastro, if your rising sign is Gemini, Virgo, Sagittarius or Pisces, you truly need to “fasten your seatbelts!!” As Nastro shared in a Sept. 16 message on X. "This pisces lunar eclipse 9/17 will affect you the strongest & it’s likely that you’ll experience major turning points & emotional transformations within your relationships (with yourself or others)."

And the astrology expert had some advice for those who identify with those zodiac signs, advising them to "try to be as open-minded as possible."

What is a lunar eclipse? 

"A lunar eclipse occurs when the moon passes through the Earth’s shadow," Wentworth Institute of Technology assistant professor Dr. Benjamin Boe explained to Today in an interview published Sept. 16. "That is, the Earth blocks out the sun as seen from the moon. While the moon is in the Earth’s shadow, it will become much darker." 

And the Sept. 17 spectacle will be a partial eclipse, as opposed to a total or penumbral version of the lunar event. 

“This eclipse will only be a partial eclipse with a small fraction of the moon going dark and having that red color," the professor continued. "The rest of the moon will be in a partial eclipse, so it will get fainter but not too dramatically. As far as lunar eclipses go, this one is very minor.”

How can I see the first 2024 lunar eclipse on Sept. 17 and Sept. 18? 

The partial lunar eclipse will be visible to the parts of the earth with clear night skies on Sept. 17 into Sept. 18. Places including North and South America, Europe, eastern Polynesia, the Atlantic Ocean, most of Africa, parts of the Middle East and the western Indian Ocean are expected to be able to witness the display. 

But the sky show won't last too long. The entire event will span about three hours, with the maximum eclipse—when the moon is covered most by the earth's shadow—occurring at 10:44 p.m. ET or 7:44 p.m. PT, according to TimeAndDate. 

Why is the 2024 lunar eclipse being called a "Trifecta" super eclipse?

While lunar eclipses always occur during the full moon, the Sept. 17 eclipse is considered a "trifecta" eclipse because it will also be during September's Harvest Moon, a.k.a. a supermoon that appears larger than usual because its orbit is close to the earth.

What Zodiac signs will be most affected by the lunar eclipse on Sept. 17? 

Astrology influencer Solel Nastro predicted that Gemini, Virgo, Sagittarius and Pisces signs will experience the biggest energy shifts following the lunar eclipse, explaining on X, "It’s likely that you’ll experience major turning points & emotional transformations within your relationships (with yourself or others)."

But that doesn't mean the remaining eight star signs—Scorpio, Taurus, Libra, Cancer, Aquarius, Aries, Virgo and Leo—are exempt from feeling the change. 

As the astrology expert Astro Maji put it on X, "The Full Moon Eclipse happening tomorrow is a significant astrological event. It’s a partial lunar eclipse in Pisces, which brings heightened emotional sensitivity, intuition, and a strong spiritual or dreamy influence."

The astrologer added, "Eclipses tend to bring closure & highlight emotional wounds, past traumas, or unresolved feelings, asking you to let go of baggage."